Topic: Asphalt

Bay Area Golf Course Asphalt Repair

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Bay Area Golf Course Asphalt Repair

Revitalizing Poppy Ridge Golf Course!

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At Calvac Paving, we know a thing or two about asphalt repair and Golf Courses.

So when Poppy Ridge Golf Course called us to bid on a project to rehab an extensive areas of failed asphalt encompassing the road leading to the golf course and the parking area itself, and to reseal and restripe the parking area and drive entrance, we were pleased to submit our expertise and cost for consideration. Soon thereafter, we learned we had been awarded the project at 4280 Greenville Road in Livermore.
 
To achieve the repair, we provided 4” asphalt repairs and two coats of seal followed by restriping. This required excavating the failed asphalt and recompacting the subgrade beneath the asphalt paving. Then the hot mix asphalt needed to be placed in two 2” layers, or “lifts,” using 3/4” asphalt on the base lift and ½” medium asphalt on the surface lift. Covering 4,000 +  square feet of surface area. This ensures strength, flexibility, and density within and between the asphalt layers, while minimizing air voids which can facilitate water infiltration and lead to premature asphalt failure over time.  
 
Once the subgrade and the lifts had been individually compacted, we provided two coats of Reed and Graham’s OverKote, an asphalt emulsion seal for asphalt which incorporates a latex additive. This step gives a smooth, finished appearance to the asphalt, adds surface resiliency and increases water and dust resistance, extending the operational lifespan of the asphalt. The staff and patrons of the golf course were extremely cooperative and understanding of our schedule and the project went very smoothly.
 
We’re proud to announce that Poppy Ridge Golf Course has already recommended us for similar projects on the strength of our work here, and we’re excited to be able to demonstrate the quality and efficiency of our work once again as the leading Bay Area Asphalt repair company.
 
Calvac Paving has been serving the Bay Area since 1972, and we’re proud to bring the same great results to every project we work on.
 
To learn more about how Calvac can help with your project, call us or send us an email and let us put our experience to work for you!
Calvac Paving asphalt & concrete in San Jose logo

2645 Pacer Ln
San Jose, CA
95111
(408) 225-7700

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© 2024 All Rights Reserved.


8 Signs Your Asphalt May Be Failing

8 Signs Your Asphalt May Be Failing

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Asphalt is a very versatile and durable paving material. Its resilience and flexibility make it an ideal surface for everything from eight-lane superhighways to driveways to parking lots. However, asphalt does require care and maintenance to function at peak performance, and it can fail for several reasons. If you see any of these warning signs of failing asphalt, quick action can save you a lot of time, money, and hassle. Here are eight signs your asphalt may be failing—and what you can do to fix them!  

1.  Alligatoring

Alligatoring is called that because of its appearance: interconnected cracks that look like alligator skin. It is an indication of load-related deterioration which could be caused by a weakened or improperly compacted subbase material, excessive traffic loading, inadequate pavement thickness, or a combination of these factors.  

2.  Edge Cracks

Edge cracks are found within 1-2 feet of the outer edge of the asphalt surface, running longitudinally, or roughly parallel to the outer edge. These cracks are caused by improper support of the paving surface at the margins.  

3.  Reflective Cracks

Reflective cracks most typically form in joints or areas of concrete or asphalt paving which have been previously repaired, such as with crack sealing or where a temporary corrective overlay has been placed to relieve stress on deteriorated paving. These cracks form because of continuing movement of the old pavement due to continuing traffic load.  

4.  Slippage Cracks

Slippage cracks are easily identifiable because of their crescent shape. They occur either due to poorly bonded pavement layers or an asphalt mix design which is insufficient to the demands of the traffic patterns. These cracks appear because of forces applied by turning or braking vehicles, which cause the pavement to move slightly at first but with accelerating damage to the surface the longer the underlying cause goes uncorrected.  

5.  Rutting And Depressions

Ruttingis caused by weakness of the subgrade or base soil layers, instability of an asphalt mix, insufficient pavement thickness, or poor compaction. Rutting is a linear, surface depression of the wheel path caused by deformation or consolidation of any of the pavement layers or subgrade. Depressions,also known as birdbaths, are localized areas of pavement surface failure caused by poor initial construction techniques that undermine the asphalt over time. These may occur on their own or in conjunction with other failure indicators. If left unchecked, depressions can become potholes(see #8).  

6.  Asphalt Patch Failure

These failures are easy to spot because they’re very localized to the area where a patch was placed, and characterized by unevenness, deflection, or stress cracking along the perimeter of the patch. They are caused by either not fully removing the damaged area to be patched, or not allowing a minimum of one extra foot around the perimeter of the patch area to ensure the patch is bonding to an uncompromised surface. The rate of patch deterioration is influenced by materials selection, compaction, and the quality of the surrounding pavement as well as the underlying subbase. While the latter is not typically visible, adding one additional foot around the patch can help patches last longer and function better under load.  

7.  Raveling

Raveling is caused when the aggregate particles in the asphalt cement wear away under traffic forces. This condition suggests either that a poor-quality mixture was used or the asphalt surface has hardened enough to no longer be supple and flexible.  

8.   Potholes

These bowl-shaped holes are caused by localized disintegration of the pavement surface. Potholes are usually the result of another type of distress that has not been properly addressed. Segregation, failed patches, and cracks can all lead to a pothole over time. Weak spots and localized areas of improper or insufficient compaction in the subgrade or subbase, or poor asphalt mix designs, can accelerate the degradation of the pavement surface and the formation of potholes.   When you notice indications of paving failure, bring in an experienced paving contractor as soon as possible to restore the surface and minimize downtime, expense, and the risk of further, more severe failure in the future. Calvac Paving has been proudly serving the Bay Area and beyond for over 45 years, and we’d like to put that experience to work for your next paving repair or new construction project. 

For more information, or to learn more about how Calvac Paving can deliver the results you need and want, call any of our Bay Area offices or click here to contact us today!

© 2024 All Rights Reserved.


7 Reasons Why Quality Asphalt & Paving Is A Must for Bay Area Commercial Properties

7 Reasons Why Quality Asphalt & Paving Is A Must for Bay Area Commercial Properties

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Have you ever thought about the signals your paving might be sending? Most people don’t, but properly executed concrete and asphalt commercial paving can make a big difference in how your property is perceived, from the initial impression people receive just driving by to potential customers or even buyers. 

If your property is used for regular commerce, such as a shopping center, big-box store, church, or apartment complex, you may find you don’t entice the sort of clients and visitors you’re hoping for if your asphalt surfaces aren’t up to par. 

Even worse, it could adversely affect the bid numbers your property receives if you decide to sell!

If you’re noticing cracking, discoloration, warping, areas of exposed aggregate, faded striping paint, or other common signs and symptoms of asphalt and concrete failure, you might be tempted to just ignore it—or worse, try to figure out a fix for satisfactory asphalt repairs with the staff and materials available to you and your company. 

But DIY asphalt repair isn’t always the best way to deal with problems like this. If they’re not dealt with by reputable asphalt paving company contractors, you could be left with an even bigger problem than you started with—and your customers, visitors, and potential buyers might be scared off by poorly placed asphalt paving or improper asphalt maintenance.

Calvac Paving is the asphalt company the Bay Area and Northern California trust for all your concrete and asphalt construction needs, delivered on schedule and on budget. 

So if the points above haven’t convinced you that you really do need the help of professional asphalt paving companies to make sure your asphalt driveway, parking areas, and roadways are up to scratch, here are seven reasons why quality asphalt paving is a must for commercial property owners!  

1. Enhances Curb Appeal

Commercial asphalt paving contractors can help improve the aesthetics of your property. Quality asphalt paving will enhance the curb appeal of your commercial property, making it look more professional and attractive to potential customers. Whether it’s a convenience store or a chain of community centers, even small cracks in your pavement can add up to high costs in lost revenues and interest for your business.

2. Boosts Property Value

Quality commercial asphalt paving is an investment that can increase the value of your commercial property. It can also make your property more appealing to potential buyers or tenants now and in the future.

3. Provides Safe and Smooth Surfaces

A quality commercial asphalt paving contractor will provide asphalt installation that delivers a smooth and level surface that is safe for pedestrians and vehicles and retains striping and marking paint at maximum visibility for a longer period too! A poorly paved surface can be dangerous, causing accidents and damage to vehicles. It’s also an ADA compliance infraction that could rack up big fines or even shut your business or property down if it’s not corrected.

4. Reduces Maintenance Costs

Quality asphalt paving can help reduce maintenance costs. A well-paved surface is less likely to develop cracks or potholes, reducing the need for frequent repairs.

5. Improves Drainage

Commercial asphalt paving contractors can design, build, and install a drainage system that prevents water from pooling on your property. This reduces the risk of damage to your pavement and prevents accidents caused by slippery surfaces. It also helps extend the life of your asphalt paving, keeping it looking and performing great for longer, reducing the future cost of maintaining and repairing your asphalt over time.

6. Enhances Sustainability

A quality commercial asphalt paving contractor will use sustainable materials and techniques to create long-lasting pavement. This reduces the environmental impact of construction on your property and the world around us and helps you meet sustainability goals. Going green, or at least greener means everyone wins!

7. Increases Customer Satisfaction

A well-paved parking lot or driveway can help improve customer satisfaction. It provides a positive first impression of your property, making customers feel more comfortable and safer while visiting your business while sending a clear, simple message: “We’re up to the job!” This is a crucial first step in the customer experience because if your facilities don’t look like they’re up to par, why would their expectations include the excellent, even exceptional, customer service and results you and your experienced staff strive so hard to provide?

Calvac Paving is the commercial paving and coating contractor you can trust to handle any size job. 

Projects we handle range from simple residential paving and asphalt driveway paving jobs for homeowners’ associations and municipal authorities to pavement solutions for commercial applications like strip mall complexes or even a complete design/build of asphalt and concrete paving for industrial paving applications, complete with drydock and warehouse facilities. Our competitive rates will make your budget happy, while our commitment to environmentally friendlier practices can help everyone breathe a little easier.

Calvac Paving is proud to be the experienced concrete and asphalt paving contractor Northern California trusts, serving the Bay Area and beyond with the following suite of paving services, plus a lot more!

  • Asphalt installation
  • Asphalt maintenance
  • Asphalt repair
  • Asphalt sealcoating
  • Concrete curb and gutter design
  • Concrete curb and gutter installation
  • Concrete curb and gutter repair
  • Storm drain and runoff design and implementation
  • Parking lot repairs
  • Parking lot striping
  • Parking lot sealcoating
  • ADA compliance for signage, striping, and accessible parking spaces
  • And much more!

For more information about how Calvac Paving can help with your upcoming construction or paving and maintenance job, or to request a competitive quote and bid information for upcoming paving projects, click here to contact us today through our website or check the location nearest you on our Contact page to reach us by phone. 

Be sure to visit our Asphalt Service Page for some of the projects we’ve undertaken in the past too! And for more info about how proper paving and parking lot maintenance can ensure your asphalt parking lot, driveway, or roadway continues to perform the way you and your visitors need it to for years to come, keep reading for our answers to frequently asked questions about commercial asphalt paving contractors and why property managers and owners need them, from folks just like you!  

Frequently Asked Questions About Why Quality Asphalt Paving is a Must for Commercial Property Owners

Calvac Paving is the asphalt paving contractor commercial businesses and government entities in Northern California trust for parking lot and driveway paving that lasts longer, as well as roadways that will stand the test of time!

Question: What Is A Commercial Asphalt Paving Contractor? –Reynaldo, San Jose, CA

Answer: A commercial asphalt paving contractor is a professional who specializes in the construction and maintenance of commercial properties such as parking lots, driveways, and roads using asphalt, as well as commercial paving and coating operations for other applications. But caveat emptor! Not all asphalt commercial paving companies are created equal. A commercial contractor who can handle a simple, minor repair job that only requires a touch-up on asphalt sealcoating to bring the surface back to life again may find themselves out of their depth on a job that requires a complete tear-out and reinstallation because the cracks have infiltrated through the entire asphalt mat, allowing in water, frost, and biological and environmental contaminants that can undermine asphalt’s flexibility and resilience. It’s important to always check the expertise of the company you’ve chosen for your commercial paving and coating needs, so you know you’ll get great, durable results that last far beyond the day the contracting company leaves the site!

Question: What Is The Typical Lifespan Of An Asphalt Surface? –Artie, Los Gatos, CA

Answer: The typical lifespan of an asphalt surface can vary depending on the quality of materials used, how well the ground preparation was executed before the final mat was introduced, the amount of traffic it receives, and the level of maintenance it receives. Generally, an asphalt surface can be expected to last between 15-20 years with proper care and maintenance.

Question: What Services Do Commercial Paving Contractors Offer? –Jeanette, Santa Clara, CA

Answer: In general, a reputable, established commercial paving company will typically offer a range of services, including new construction, repair, maintenance, and replacement of asphalt surfaces. Commercial contractors can also provide asphalt and concrete paving repair services, such as seal coating, striping, and crack filling, to extend the service life of your paving, so it looks and works better for longer.

Question: How Do I Choose A Reliable Commercial Asphalt Paving Contracting Company? –Chuck, San Francisco, CA

Answer: To choose a reliable commercial asphalt paving industry contractor, you should look for a company that has a good reputation, proper licensing, insurance, and experience in the field. You can also ask for references and check reviews from previous clients. If available, review the project gallery of previously completed projects to make sure the results they’ve delivered in the past are in line with your expectations for the future of your project. It’s even better if you can independently contact communities or municipal office personnel, such as a project manager, who has interacted with the company in the past and can give you an unvarnished review of your paving contractor’s services.

Question: What Factors Affect The Cost Of Commercial Asphalt Paving? –Thomas, Hobart, CA

Answer: The cost of commercial asphalt paving can be affected by various factors such as the size, scope, scale, and complexity of the paving project, the quality of materials used, the location, and the equipment and labor required for the job. For example, a job that only requires a pump truck with a single two-person paving team to dispense seal coat or crack sealer is going to cost a lot less money than one that requires a lowboy, pavers, a parade of asphalt delivery trucks, a front-end loader, and steel-drum and rubber-tire rollers, plus an experienced and seasoned roster of multiple paving crews to run and manage all this equipment. In general, residential driveways need a lot less equipment than most parking lots, and most parking lots (excluding schools and universities) typically require less equipment than roadway construction does, which obviously has a large impact on the pricing range you can expect for your job.

Question: How Long Does It Take To Complete A Commercial Asphalt Paving Project? –Ilsa, Sunnyvale, CA

Answer: The time it takes to finish a commercial asphalt paving project depends on the size, complexity, type, and requirements of the project. However, with proper planning and preparation, most projects can be completed anywhere from a day or so after starting to a few weeks, in the case of large industrial projects. This does not include the time to survey, plan, make sure the necessary crews, equipment, and materials are reserved, set up any necessary traffic controls, and similar “pre-work” logistics tasks that need to be done but often get overlooked when considering a deployment and execution schedule.

Question: I Manage The Development Of Townhouses, And I’m Considering Having My Maintenance Staff Work On Some Paving Problems I’ve Noticed. What Are The Benefits Of Hiring A Commercial Asphalt Paving Contractor? –Karen, Palo Alto, CA

Answer: While going the DIY route to stay within budget can be very tempting, it’s almost never the best way. What videos from YouTube or Instagram often don’t tell you are things like why this specific solution worked, or that one didn’t. They also don’t address hidden problems you might encounter trying to do the work yourself, such as water or frost infiltration into the mat, which can compromise its performance and presage more serious problems in the making, which may mean replacement rather than repair, is the right call. Hiring a commercial asphalt paving contractor at the outset can help ensure that your project is completed efficiently and to a high standard. They can also provide professional advice and guidance on the best solutions for your specific needs and situation. Obviously, there’s a lot more that goes into helping keep your paving looking and working great than just keeping it clean. 

That’s why you need an experienced asphalt commercial paving company like Calvac Paving! 

We take pride in delivering better results that go above and beyond for both you and your customers and tenants.  To find out more about how Calvac Paving can help you bring your paving repair project in on time and on budget, click here to contact us today and see the difference a skilled, professional asphalt paving commercial contractor like Calvac Paving can make in your project outcomes for yourself!

© 2024 All Rights Reserved.


5 Major Asphalt Advances to Watch in 2022 From Calvac Paving

Calvac Paving Bay Area Asphalt and Concrete Contractor

5 Major Asphalt Advances to Watch in 2022 From Calvac Paving

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From the highway to the driveway, asphalt paving gets you where you need to go. Humanity has been using asphalt and bitumen for projects as diverse as waterproofing, shipbuilding, and road paving for millennia, and it has continued to prove its utility at every turn. In 2022, Calvac Paving is excited about some new advances in paving technology that could be game-changers for drivers, owners, stakeholders, and local, state, and federal authorities and agencies alike. These are the five major asphalt advances you’ll want to watch in 2022, brought to you by your friends at Calvac Paving!  

Alternative Paving Materials

From cigarette butts to recycled plastic to rubber-modified asphalt (RMA), scientists worldwide are exploring the application of old materials, used in new ways to enhance the strength, longevity, sustainability, recyclability, and resilience of asphalt paving. These alternative paving materials may help combat issues like the “urban heat island” effect, keeping asphalt-paved surfaces cooler and allowing them to trap less heat year-round. They also offer new ways to reduce waste, reuse materials, and recycle “junk” materials that are typically discarded, helping break the waste chain and creating a healthier environment by keeping these materials out of landfills, waterways, and oceans.  

Smart Pavement

Technology may soon make your morning commute or your summer trips safer and easier, with fewer bumps and less noise! Integrated sensors that report everything from traffic conditions to overall roadway and pavement health are being tested around the globe. Nanoparticle-based noise- and vibration-damping adhesive binders for asphalt mixes are under investigation as a potential solution to problems such as roadway chipping and pitting. And roadways that charge electric vehicles as they drive using wireless recharging technologies are in active use or the planning stages from Sweden to Michigan to Norway, solving one of the EV’s biggest hurdles while also making paving even more environmentally friendly!  

Asphalt Continues Its Reign As The World’s Most Recycled Material.

  Roughly 100 million tons of asphalt pavement mix are produced each year globally. Of that amount, an estimated 95% is reclaimed, reused, recycled, or repurposed, making asphalt one of the planet’s most readily recyclable materials. Perhaps most importantly, recycling asphalt helps keep costs lower and reduces reliance on foreign oil to create the bitumen binder that gives asphalt paving its flexibility. With all these factors going for asphalt, it’s reasonable to expect even bigger pushes to maximize asphalt recycling up to a full 100% in 2022 and beyond.  

Inflation And Rising Oil Prices

Between the war in Ukraine and US embargos on Russian goods, including oil, the continuing effects of the COVID-19 pandemic on shipping and trade, and a period of high inflation, prices are only getting higher for just about everything—and asphalt pavement is no exception. Recycling and the use of alternative paving materials will help offset this increase greatly, but paving contractors and stakeholders can still expect to see reduced profits and higher up-front costs, at least through the summer.  

Striping

 Some of the biggest advances and hottest trends in paving technology don’t really have to do with the pavement itself—but the paint! Striping is a perennial headache for entities from the federal government all the way down to small business owners trying to keep their parking stalls and handicapped spaces ADA-compliant, but new formulas and application methodologies appear poised to change that in 2022. New advances in striping paint include more eco-friendly options, nanotechnology and microfibers for increased durability and longer utility life, and additives and refined formulas for heightened visibility. Autonomous, self-piloting robotic paint sprayers which deploy striping more uniformly, more accurately, and with a greater level of precision than humans are capable of are making a big impression across the industry.   At Calvac Paving, we’re excited about (most of) what 2022 has in store for the paving industry, as well as how new advances and technologies are going to change both the paving industry and the face of our world. Since 1974, we’ve been committed to making the use of concrete and asphalt paving in construction as efficient, cost-effective, and environmentally friendly as possible. Because of this commitment to a greener, cleaner planet for all, and better-forming pavement applications for our customers and stakeholders, we’re looking forward to seeing the next big advances and putting them to work! When you need a Bay Area paving contractor with an unparalleled safety record who goes above and beyond to deliver consistently outstanding results, click here to contact Calvac Paving. Let us show you what sets Calvac Paving apart from other paving contractors and why we’re the paving company the Bay Area trusts from the driveway to the highway and home again!    

© 2024 All Rights Reserved.


Five Reasons, the Best Time to Maintain Your Asphalt Is NOW!

Calvac Paving asphalt and concrete work in San Jose

Five Reasons, The Best Time to Maintain Your Asphalt Is NOW!

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The last 18 months have been rife with uncertainty and riddled with worry for nearly everyone. With businesses closing temporarily or permanently, the Bay Area’s paving situation has never been as dire as it is now. The fact is, if your parking lot, driveway, and other paving problems aren’t corrected early, they’ll get worse and more expensive to fix later. Here are five reasons the best time to maintain your asphalt is NOW!

1. Fluctuating Oil Prices

The price of oil impacts everything, perhaps especially in the construction industry. Asphalt and concrete batching and production processes are uniquely affected by the cost of oil. In July 2020, the cost of asphalt tumbled to a low not seen since March 2017. One year later, the price has increased by nearly 50%, spurred on by rising oil prices and a concurrent rise in the cost of refining, processing, and batching. With prices going up, now is the best time to lock in current rates for asphalt and concrete before the cost jumps even higher.

 2. Curb Appeal

How can you tell the difference between a closed business and a business that’s open and ready to take care of its customers? The truth is your customers can’t, especially if they’re driving by on the street. Cracked, faded, potholed parking lots with worn-out striping are unattractive to the eye and send an unflattering message to potential clientele. By repairing your parking lot, access-ways, and other curb and drive installations, you clearly communicate that you’re open for business, ready to get to work, and able to assist your customers with all their needs.

 3. Safety

Did you know that cracked or potholed asphalt, offset sidewalk slabs, and other defects and damaged portions can be a safety hazard? It’s true! If a customer trips and falls because of poorly cared-for paving, your business may be liable for any injuries they sustain. Such hazards can also impede disability access to your business and maybe an ADA violation with a fine of up to $75,000 for the first infraction and $150,000 for each subsequent violation. When you add up the stiff financial and reputation costs of noncompliance and the potential for injury to your staff, customers, and the general public, having your parking lot and sidewalks repaired looks like a pretty good bargain.

4. Weatherproofing

When cracks form in asphalt paving, it allows water to infiltrate the subbase. A small trickle of water isn’t a big deal, though, right? Unfortunately, no. As water seeps into the pavement, it wears and washes away the surrounding material and pools within the matrix, allowing plant seeds to take root and start to grow. During colder weather, it may freeze and expand. These erosive processes accelerate cracking and pothole formation as well as undermining the structural integrity and flexibility of the overlying surface. At a certain point, the paving will be beyond repair and will have to be completely removed and redone to work properly. A well-maintained parking lot will perform and look better for years to come.

 5. Increase And Safeguard Your Property Value

Faded, cracked, or faulty paving can be expensive in more ways than you think. It can also drag down the property value, especially if you’re considering selling in the near future. If your paving looks good, it will also perform well for years to come, making the property a better investment for anyone who might end up buying.

All in all, maintaining your asphalt paving is a smart investment with a lot of benefits and virtually no downside over time. Whether you need a simple sealcoat and restriping, a spot patch and repair on a faulty section, or a complete tear-out and rebuild of your asphalt and concrete paving, Calvac Paving is here to help with proven, durable results that give you, your tenants, and their customers the great performance and appearance they expect and deserve. For all your Bay Area paving needs and a job that’s done right the first time, every time, click here to contact Calvac Paving today!

© 2024 All Rights Reserved.


Maintenance Monday: 10 Ways to Prepare Your Asphalt for Summer

Maintenance Monday:

10 Ways to Prepare Your Asphalt for Summer

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Whether it’s a roadway, a driveway or a parking lot, asphalt takes a pounding over the fall and winter months. The cooler temperatures and more frequent rains can take a toll on even the most robust and well-constructed asphalt pavements. To ensure maximum safety and durability for your asphalt and the people who travel and park on it, Calvac Paving presents ten ways to prepare your asphalt for summer!  

1.  Take A Closer Look.

Asphalt is very durable and resilient, but there are a number of ways it can fail, so it’s a good idea to have a thorough walkthrough at least quarterly. You should check the condition of your asphalt more frequently in cases of unusually heavy or inclement weather, or if you notice indications of a problem like water flowing down the middle of your lot or roadway.  

2.  Cracked-Up Asphalt Isn’t Funny. 

Surface cracking often indicates that the subgrade beneath the asphalt is failing, this will also allow water penetration into the subgrade. In these cases, depending upon the severity, the affected problems such as potholes, alligatoring, or area(s) need to be removed and replaced.  

3.  Paint It Black.

If your asphalt looks gray rather than black, has a pitted look or you notice deep cracks which may allow water to infiltrate to the subbase, it’s time to engage in crack filling and sealcoating, to help preserve and protect the asphalt and retard further damage.  Note: Most unsealed asphalt has a rough and somewhat textured surface, because of the placement methodologies and the type of hot mix used. The larger the aggregate in the mix the stronger the pavement, but you give up the smooth appearance The solution to this rough surface is twofold. First, an admixture of 2% latex per gallon of raw seal coat is added to both coats of material. secondly, adding one to four pounds of sand to the seal coat on the first coat will add necessary fine aggregate to fill the voids in the asphalt pavement. No sand is added to the second coat. This works to ensure a better looking, longer-wearing surface.

4.  Don’t Stand For It!

Standing water can be a symptom of subsurface issues with a section of your asphalt, usually caused by compaction failure in the subbase. Not only can standing water erode the surface as we’ve already discussed, but it can also undermine the integrity of other sections as the water is forced out of the depression and follows the drainage profile of the area in question.  

5.  Rainbows Belong In The Sky, Not On Your Asphalt!

If you notice iridescent or rainbow-colored patches, these should be cleaned off as soon as possible. Oil and fuel spills can degrade the asphalt’s surface quickly, creating imperfections which over time can become full-fledged failures, reducing your asphalt’s performance and lifespan.   

6.  Clean It Up.

In addition to the fuel and oil spills mentioned above, it’s always a good idea to keep your asphalt clean and clear of debris such as garbage. Food products, in particular, should be cleaned up quickly, because these tend to have a relatively high acid content, e.g., ketchup, hot sauce, salad dressing, which then lingers on the surface, promoting deterioration of the asphalt. Besides, it just looks nicer!  

7.  Root It Out.

If you have trip hazards such as uneven areas or raised roots, now is an excellent time to get them corrected. Trip hazards can be an expensive liability and can presage surface failure later depending upon the nature, type, and expression of the hazard. If possible, identifying and removing these hazards early can extend the life of your asphalt and help keep your insurance premiums down as well.

8. Traffic Control Is Important.

Older and graying pavements make it significantly more difficult to see the traffic markings. This can lead to potentially hazardous situations. Often the markings, arrows, crosswalks, stops and bars can become unrecognizable because of “ghosting”. This is the prior striping bleeding into view and confusing the drivers and pedestrians and leading to potential accidents. This condition is usually timely with the need to seal coat the pavement. Seal coat and restripe will solve this for years to come. This will also allow the property to be brought up to the current Building Code.

9.  Time Is Not On Your Side.

By the time most people notice a problem with their paving, the damage could be far more extensive than even a detailed site walk can really pinpoint. Frequent examination and correcting areas which show indications of failure as soon as possible after they’re noted can help prevent costly, time-consuming, and unnecessary repairs.  

10.  Call In The Professionals.

A paving job done poorly can often be worse than no repair at all. That’s why it’s worth your while to bring in pavement professionals with a solid track record of proven results. Calvac Paving has been serving the Bay Area since 1974, and we have the experience, resources, and personnel to do the job right the first time, every time. Put our experience and cutting-edge construction technology and methods to work for your project by calling any of our Bay Area locations or clicking here to contact us!

© 2024 All Rights Reserved.


How Long Does Asphalt Take To Dry?

How Long Does Asphalt Take To Dry?

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One question we often hear at Calvac Paving is about asphalt cure times. This is a great question because understanding how the asphalt curing process works helps you understand when you can safely stripe, park, walk, and drive on the new asphalt parking lot and what sort of performance you can expect from your asphalt long-term. Let’s take a closer look at how the asphalt installation process works and how this affects the asphalt curing process!

 

 Asphalt Surface Installation

 

Most asphalt paving companies prefer not to place a fresh asphalt surface if the ambient temperature is outside the range of  50°F-90°F. If it’s too hot, asphalt will not cure quickly enough.  Paving when it’s too cold can cause the asphalt crack as it rapidly cools. Weather conditions can make a difference as well. If you watch carefully, you’ll notice paving companies rarely place asphalt in heavy rain. While it is possible to pave asphalt outside these parameters, it requires special preparation and oversight.

The rules for hot asphalt patch, resurfaced asphalt sealcoating and cold patch asphalt placement are a little different, so for purposes of this discussion, we’re going to focus on a clean installation on grade for commercial or residential paving like parking lots or a driveway.  

 

 How Long Does Asphalt Take to Cure?

The curing time for asphalt depends on the asphalt mix design, the oil content, the temperature of the mix, the thickness of the paved asphalt layers after compaction, and the temperature and weather conditions when the mix was placed. Generally, you can open new asphalt to public foot and vehicle traffic 48-72 hours after it is placed because this allows time for the asphalt to harden, but you may need to allow a bit more time during hot weather. Asphalt doesn’t fully cure for 6-12 months, so it’s important to keep a close eye on it during this time because it will be less resistant to damage.

The reason we stress the difference between “curing time” and “asphalt drying time,” even though they’re often used interchangeably is that asphalt is designed to be flexible. For it to remain flexible, it has to retain a certain amount of moisture. Water infiltration in paved asphalt driveways, parking lots, roadways, speed bumps, and other asphalt surfaces is the primary factor leading to a blacktop drying out. The water washes away the oil which keeps the asphalt overlay flexible and resilient. You can tell when asphalt dries because you’ll notice cracking, warping, raveling, and loose aggregate appearing on the surface of the matrix, especially sand and other fine aggregates. Fortunately, it takes months to years of asphalt drying time to start noticing signs other than cracking.

 

What Can I Do to Not Allow My Asphalt to Dry Out?

 

Good roadway and parking lot maintenance programs can help prevent a lot of problems. Putting down asphalt seal coating on a regular basis, especially when you freshen up your street or parking lot striping, can help prevent more costly asphalt repairs down the line. This is also a great time to do any basin repairs and crack filling, as catching these problems early, when they’re small, can keep your asphalt fresher and more flexible for a lot longer.

Asphalt sealer drying times vary, but 4-8 hours to dry is usually enough for your sealer to ensure it will keep water out. However, the full drying process for the sealer takes around 24 hours, and it’s important to allow your sealcoating to dry completely before line striping for maximum resiliency and effectiveness. As with any other kind of asphalt sealant, you want to allow crack sealer to cure for at least 24 hours in perfect conditions, and add a day for cool, cloudy, or high-humidity conditions just to be on the safe side.

 

 Final Thoughts About How Long It Takes Asphalt to Dry

 

Of course, the best mix design in the world won’t do you any good if it’s improperly placed, if your striping doesn’t meet the latest ADA criteria or if you don’t take proper care of it. For the best possible results and the greatest confidence in your paving job from breaking ground to the final walkthrough and for years of use beyond, click here to contact Calvac Paving. We’ve been proudly serving the Bay Area since 1972 on residential, commercial, and government projects of all types. Our track record for consistent quality, service, and excellence in every aspect of our operations speaks for itself. Put our experience to work for your paving refurbishment, repair, or new construction needs and see why Calvac Paving is the contractor you need for paving that works the first time, every time!

© 2024 All Rights Reserved.


Latest Bay Area Asphalt Repair Project From Calvac Paving

Latest Bay Area Asphalt Repair Project From Calvac Paving

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Modern technology and paving practices have revealed faster, more cost-effective solutions to problems that once would have required expensive tear-out and repaving operations. One of the best examples we at Calvac Paving have ever seen was the rehabilitation of the Redwood Shores parking lot we recently undertook. This project mixed new technology with time-tested techniques to deliver a great result for the client, faster and more efficiently than conventional paving methodology.

 

The parking lot itself was old, cracked and weathered from years of use, but not so bad as to need a complete removal and replacement. Age and oxidation from poorly placed asphalt atop moisture-sensitive base material had caused the asphalt to crack and dry out, reducing its flexibility and its resilience. The parking lot was in need of a major face-lift, and Calvac Paving had the perfect product and the years of specialized talents to make it happen. This was a very unique project in that it perfectly fit the criteria for a very specific application: a Petromat overlay.

Petromat is a non-woven reinforcing fabric that is applied using a liquid asphalt binder known as RS1, which works as a penetrating adhesive and moisture barrier. The Petromat fabric helps to retard the existing cracks from reflecting through the new asphalt surface and gives the finished surface a higher tensile strength, thereby distributes the weight of heavy truck traffic over a greater area. After that, a full two-inch placement of hot ½”fine asphalt is placed with self-propelled paving machines.  Once the asphalt has been placed, the compaction equipment follows immediately behind the paving equipment. These very large and heavy smooth drum rollers compact the hot asphalt to a dense, smooth and uniform finish.

Day 2 of the project

Once the compaction process is completed and the hot asphalt has cooled, we then apply a fog seal mixture of 50% SS1 and 50% water. This is designed to help bond the top layer of new asphalt and give it that black shiny “new pavement” look. After the Petromat overlay is 100% completed to our satisfaction, we can proceed with striping and stenciling operations.

Because of the unique considerations and time constraints of the job, Calvac Paving recommended a 2” Petromat overlay over the entire parking lot, measuring approximately 63,500 square feet. This offered the best results for the budget and gave them similar benefits to getting a brand-new parking lot for years to come, without the hassle, expense and lost time of a complete remove and replace. This project also had some very unique parking design restrictions, offering a perfect opportunity for Calvac Paving to design a new layout for the regular and ADA stalls. This redesign included larger stalls, which helped prevent unnecessary dents in car doors, making both the tenants, and owners happy with their new parking lot investment.

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Please feel free to drive by and see what a truly professional paving project should look like, and what your commercial parking lot can look like too! From a private roadway rebuild to a complete parking lot rehabilitation and much more, there are very few jobs Calvac Paving cannot do. We’ve been serving the Bay Area for more than 40 years. Now let us serve you! To find out more about Petromat or how we can help with your next project, contact us by email or by phone at:

(408) 225 – 7700

(650) 694 – 7944

(831) 375 – 7944

When you need the best, don’t leave the results to chance. Contact Calvac and have the job done right the first time, every time!

© 2024 All Rights Reserved.


Asphalt: The Most Recycled Material In America!

Asphalt: The Most Recycled Material In America!

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Recycling is important for our ongoing quality of life. It allows us to reclaim and reuse materials that would otherwise go to waste, clogging up landfills and contaminating our oceans. When most people think of recycling, they may think of cans, bottles, paper or even old computers. But surprisingly, the most recycled material in America is literally right under our feet: asphalt!

Unlike many recyclables, which may have limitations on specific types that can be recycled, any asphalt pavement can be 100% recycled. The American Asphalt Association recently released 2016 data which stated about 79 million tons of asphalt was reclaimed and reused in roadway mix designs and other activities, such as reprocessing into a recycled aggregate base course for use beneath the roadways themselves. In addition, nearly 1.8 million tons of waste and byproduct material from other industries were incorporated into asphaltic concrete mix designs in 2016.

We’ve previously discussed the possible use of plastic bottles and even cigarette butts as elements of asphalt designs which are being explored. By reclaiming these materials into asphalt, it increases their recyclability as part of the mix and helps reduce their impact in landfills. The APA says recycling asphalt saves an estimated 14,664 Olympic-sized swimming pools’ worth of landfill space each year. By adding other recyclable and waste materials to asphalt, this impact will only become greater in years to come.

Recycling asphalt isn’t just good for saving landfill space. It also reduces the environmental impact of quarrying and processing the aggregates and bituminous binders used in the asphalt production process.

Asphalt can be recycled in a number of ways. One of the most popular, and the way which reclaims 100% of the asphalt involved, is to pass chunks of asphalt through a special recycling assembly which raises the temperature to 300℉. Once the asphalt has been processed using this method, it can be laid down on roadways using existing paving technologies and techniques. In this form, it is known as Recycled Asphalt Pavement or RAP.

Another method of asphalt recycling involves crushing asphalt at a hot mix plant and using the resulting RAP as an additive for “virgin” hot mix. This type of recycling allows for over 30% of the final product to consist of recycled asphalt. By comparison, some brands of paper cups may use only 10-25% post-consumer content, highlighting the recyclable nature of asphalt.

A third way which also reclaims 100% asphalt is to crush the asphalt down into gradations suitable for road base. Rutgers University conducted a study in which RAP was compared to conventional aggregate subbase for use in roadways. The study showed the RAP had more elasticity and stiffness (are you sure they said this, seems contradictory) than the aggregate subbase when the two materials were laid using identical placement methodology. This means RAP is actually stronger, more resilient and better for the environment than regular aggregate road base while delivering comparable performance as a base material.

If the environmental benefits aren’t impressive enough, consider the potential savings for recycling. That’s right, recycling asphalt costs less than new paving! One estimate places potential savings at a national average of around 55%, or between 30-80%, over virgin hot mix.

It’s up to all of us to do our part to make our world a better, cleaner and healthier place, from the global level to our own homes. At Calvac Paving, we are always on the lookout for ways to perform our work more efficiently and cost-effectively while also remaining environmentally responsible. This means keeping a close watch on new technologies, methods and California State standards which would allow us to deliver comparable or superior results with less environmental impact and greater ROI for our clients. To learn more about Calvac Paving’s commitment to the environment, or to put the four decades of experience we’ve accrued to work for you, please contact us at (408) 225-7700 or www.calvacpaving.com

© 2024 All Rights Reserved.


Bay Area Asphalt Contractor Completes Latest Project

Bay Area Asphalt Contractor Completes Latest Project

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At Calvac Paving, we love a challenge. When St. Francis Retreat in San Juan Bautista needed an overhaul of their existing roadway, we were pleased to lend our experience and expertise to the task. The retreat is in a secluded rural setting just outside the town proper, which created some specific concerns we needed to be cognizant of during the project.

Working in a rural area, we had to plan our work in such a way as to minimize the impact on the environment and existing flora and fauna, as well as ensure we avoided disruption of the operations and tranquility of the Retreat itself as much as possible. In addition, we had to consider the safety of our personnel and the general public. Finally, the historic nature of the Retreat had to be taken into account and treated with respect.

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The roadway is approximately 1 3/4 miles long and required 2,300 tons of hot-mix asphalt. The rehabilitation consisted of pulverizing, regrading and compacting the existing asphalt as additional base material.  Then we laid replacement hot-mix in one 3” lift, compacted.  

We are pleased to report the renovation operation went very smoothly. The local residents, staff and visitors were very patient with the unavoidable disruption a project of this sort involves. We were able to complete the project ahead of schedule and within budget, without injury or harm to the area or anyone involved in or affected by it. Best of all, the Retreat now has a great-looking, high-performance roadway which can be expected to last for years to come. 

IMG_7708Calvac Paving has been serving the Bay Area since 1972. Let us put our craftsmanship and knowledge to work for you on your next project. For quality, safety, and efficiency without parallel, we’re proud to be the construction solution for all your paving project needs!

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© 2024 All Rights Reserved.