Topic: Blog

Asphalt Crack Repair

Asphalt Repair

One of the processes that paving contractors can perform in these conditions of rain and clear skies is crackfilling. It takes just a day of good weather to allow us to come in and prepare the cracks with the installation of the crackfiller the following day if necessary. Here is some information concerning this service.

CONDITION:

Linear cracking in your asphalt surface. Aged and oxidized asphalt that has intermittent cracking. These cracks are typically wide spread throughout the property and not concentrated in one area nor interlocking.
If there are alligatored areas (interconnecting cracks) then these areas should be repaired rather than crackfilled. These problems are exacerbated by the intrusion of water which will penetrate to the subgrade and accelerate cracking and base failure caused by shrink/swell of the subgrade.

Latest Paving Job Calvac Paving

CAUSE:

Causes of this linear cracking could be a less than satisfactory base course on top of a moisture sensitive subgrade causing swell and shrinkage in that subgrade. This movement reflects through the base course and the up through asphalt surface. The infiltration of moisture through this cracked and oxidized (dried out) asphalt accelerates the damage.
Additional causes would be ground slippage, expansion and contraction due to heat and cold cycles, shrink/swell of the subgrade, the advanced age and oxidization of the asphalt surface.

CORRECTION:

Cracks that are 1/4” -3/8” can be filled with a cold pour asphalt emulsion crackfiller. Cracks that are 3/8” – 3/4” will require the use of a hot rubberized crackfiller. Cracks larger than 3/4” should be corrected with hotmix asphalt, by filling the cracks with hotmix asphalt and covering with hot pour crackfiller and better yet is to follow up with a Petromat overlay of the area.
With either application the cracks will have the existing vegetation removed and then the crack will be blown out with high pressure air and high heat. If necessary we can apply a spray sterilant to the existing vegetation prior to removal.
If we apply cold pour crackfiller, then that material is poured into the crack to bridge the opening and create a flexible filler that is then struck with a specialized squeegee to force the material deeper into the crack and to localize the coverage of the material into a thin strip at each side of the crack.
If the cracks require hot rubberized crackfiller, then that material is heated to 350°+ and the material is forced into the crack and struck flush with the surface.

If your property is in need of a asphalt/concrete repair, Calvac Paving is standing by to assist!

Calvac Paving
2645 Pacer Ln
San Jose, CA 95111
408-225-7700


Calvac Paving Obtains ADA-CASp Certification

Calvac Paving Leaders in ADA ACCESS

The Americans with Disabilities Act, or ADA, sets very strict standards for commercial construction to ensure that people with physical disabilities have full access to public buildings and places of all kinds. Because the provisions of the ADAS, ADA standards, are constantly evolving, many construction and architectural firms, local and state inspectors are unaware of how the different aspects of ADA codes impact the specific construction of various structures, including the need for ramps, compliant parking stalls and upgraded access and barrier removal in the case of building remodels and renovation.

ADA certification in the form of CASp is particularly important in the state of California, because of the constant turnover of property management and ownership. Often the first sign that anything is amiss with a particular building or business’s ADA compliance comes in the form of a property inspection, visitor complaint or drawing revision, with expensive consequences in exposure to litigation, retrofitting to comply with California Building Code and the ADA standards and other related costs of remediation. While CASp certification is not yet commonplace, it is believed to become far more important among construction-industry professionals in the coming years.Middle view of ada ramp install

Calvac Paving has been serving the Bay Area for over 40 years, and has been closely monitoring changes and amendments to the ADA standards since they were first put in place in 1991. Several years ago, Calvac Paving’s President, Jim Adam, decided to take this aggressive monitoring several steps further and pursue full CASp, or Certified Access Specialist, certification. This rigorous training and certification program requires applicants to be fully trained and cognizant of issues concerning building and business access for disabled persons at both the state and federal levels to ensure compliance with all ADA provisions.

Jim explained that his purpose in seeking this certification was to better serve Calvac Paving’s clients and the general public. “By training for years to understand the history, goals and application of the Americans with Disabilities Act, I am better equipped to ensure Calvac Paving’s clients a final product that will provide the barrier removal and access that the current CBC [California Building Code] and ADAS require on their properties.”

The CASp certification benefits all the stakeholders in the building process, as well as the general public. “{CASp} certification gives a confidence level that the project will be correct and that you will be able to avoid potential litigation…while getting the final product you need to be CBC and ADAS compliant.” As more construction professionals become CASp certified, Jim says the multiple points of view will help to reduce conflicts between differing objectives and strategic building outcomes while ensuring all members of the design and execution team are familiar with the code requirements that ADA imposes. Jim says this is a win for everyone, but especially the end user, which is why he sought out CASp certification to begin with.

He says he’s known for years that ADA certification would be an important step in Calvac Paving’s future ability to serve clients and the public more effectively. “The process for me started more than ten years ago when I hired ADA compliance experts to educate myself, our estimators and lead field personnel long before there was a CASp program. Then a couple of years ago I started the training process to become CASp certified. We’re trained and tested on all barrier removal and accessibility codes…it allows us to be true experts in barrier removal.” Jim also feels that Calvac Paving benefits directly from his ADA compliance expertise, because it allows him to ensure his crews can do their jobs more efficiently and “do it right the first time,” as he puts it.

Having access to the CASp certification gives Calvac Paving another powerful tool to serve its clients and help reduce potential compliance issues and costs for everyone involved, and Jim believes that as CASp certification grows in popularity, it will further establish Calvac Paving as an industry leader in ADA compliance and building accessibility for all. This, he feels, will also give stakeholders more confidence and alleviate concerns about whether or not their buildings and businesses meet applicable building codes for accessibility. For more information about Calvac Paving’s CASp certification and how this can help expedite your construction project and ensure project compliance, click here to email us or call (408) 225 – 7700!


New Medical Building Parking Lot

Calvac Paving’s commitment to service means that we often have projects that present unique challenges. For a medical center in Menlo Park, there were several problems that had to be overcome. First, the base below the asphalt had become unstable, leading to depressions and potholes in the surface. Due to these conditions the existing asphalt had to be removed, the baserock graded and compacted. Second, the existing asphalt had to be off hauled and new pavement placed over the recompacted baserock. Finally, because it is an active office, we had to complete the removal, replacement and striping in a single Saturday.

When we first arrived, the parking area was riddled with potholes and puddles from the destabilized base. The existing striping and stall design of the parking lot was several years out of step with current ADAS and CBC standards for access. We then scheduled the off haul of recycle and import of hotmix asphalt tonnage and we mobilized the equipment and manpower necessary to complete the job, as well as staging the striping crew. Since we had a very tight window and no margin for error, we knew this had to be done efficiently and correctly the first time, with no delays. After blocking off the area so that we could work safely, we began grinding out the existing asphalt using a specialized milling machine. This pulverized the existing asphalt so that we could haul it to a local recycling plant, while exposing the existing baserock surface. Once that was completed, we graded and compacted the baserock so that Calvac Paving could create a stable, uniform surface that would create the necessary drainage and eliminate the puddles. This process, known as “grading,” is key to establishing a surface safe for vehicles and pedestrians while permitting stormwater drainage, which helps prevent subgrade destabilization by not allowing water to collect and seep through the asphalt.

Once the grade had been established and the baserock compacted to comply with industry standards and project specifications, we placed fresh hotmix asphalt in two 2” layers, or “lifts.” Compacting the asphalt in lifts as it was placed, created an end product that is more durable, less prone to cracking, potholing and other problems seen with asphalt paving. Once the second lift was placed, and we fog sealed the surface, we then had to layout and stripe the parking lot up to current ADAS and California building code requirements for correct access to the building and parking areas.

The result was a very smooth and puddle free, pedestrian, parking and driving surface that is far more stable than the previous paving, as well as meeting the latest standards. At the end of the project, we had removed and replaced more than 150 tons of hotmix asphalt in a single day, which was a quick turnaround for this volume of material and the job specific constraints.

Calvac Paving has been serving the Bay Area for over 45 years, from road rehabilitation projects in Los Altos Hills to this medical center parking lot overhaul in Menlo Park, and we have constructed, repaired or remediated thousands of properties. Each project requires a slightly different approach, due to project requirements, schedules, access concerns and other factors. We pride ourselves as the Bay Area’s solution to those supposedly “challenging” jobs, combining our reputation for safety and efficiency with the attitude that there’s no reason to consider a job “challenging” with the right safety, tools, training and equipment.

We also offer an industry-leading three-year warranty on the finished product to our qualifying clients as proof that we stand behind our product and the workmanship that goes into it. We are committed to providing our clients and stakeholders the best and most efficient results in the business, while making sure that the product that we leave behind is one we can look back at with pride. For more information about how Calvac Paving can help with your job, from a major roadway reconstruction to building an ADA-compliant access point to restriping a parking lot, we invite you to call us at:

(408) 225 – 7700

(650) 694 – 7944

(831) 375 – 7944

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Some things in life shouldn’t be left to chance, and the surfaces where you, your family and your clients drive and walk on a daily basis are good examples. When you want the best, done right the first time, every time and on time, you want Calvac Paving, and we want to help!


Latest Bay Area Asphalt Repair Project From Calvac Paving

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.

IMG_8848

 

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!

 


Calvac Paving to Attend And Exhibit At The 2019 CAA Connect – Rental Housing Conference & Expo

Calvac Paving, a Bay Area asphalt and concrete maintenance company, is attending the CAA Connect – Rental Housing Conference & Expo, on Tuesday, April 16th. Calvac once again is a Master Sponsor of the CAA, as well as a trade exhibitor at this year’s CAA Connect.

Calvac Paving

As a company spokesperson noted, the event—which is hosted by the California Apartment Association—will be held at the Santa Clara Convention Center. The full-day conference typically draws a crowd of 1,500-plus professionals from a variety of industries.

The team from Calvac Paving will be in Booth 318 during the event. As the spokesperson noted, attendees are welcome to come by the booth and enter to win a raffle. “People who take pictures of Calvac Paving’s booth and use the hashtag #CAAConnectExpo will automatically be entered to win a prize from the asphalt and concrete company,” the spokesperson said, adding that representatives from the company are looking forward to meeting other attendees and exhibitors that are also in the Property Management and Maintenance industry. One reason the event is so popular with attendees, the spokesperson said, is that it’s a one-stop shop for information relating to the rental housing industry.

For example, this event features 160-plus exhibitor booths and educational seminars that feature nationally recognized speakers. Everyone who attends—from owners and corporate executives to property managers, leasing professionals, California Certified Residential Managers and more—will leave the event feeling like they have received the answers and information they need about their most urgent management challenges, as well as determining which vendors are the best for their businesses.

“Calvac Paving has served the Bay Area for over four decades, so we are confident that we can help answer a variety of questions that attendees may have about our industry while also enjoying meeting new clients,” the spokesperson said.

About Calvac Paving:
Calvac Paving is a full service asphalt and concrete maintenance company that has been serving the greater Bay Area since 1974. For more information, please visit http://www.calvacpaving.com/

Calvac Paving
2645 Pacer Ln
San Jose, CA 95111
(408) 837-9021


How Many Parking Spots Will I Need For My Strip Mall?

Happy Monday Everyone! In this edition of Maintenance Monday, one of our social media friends sent us this question.  I own a strip mall in San Jose, we have 10 retail stores, with 75 parking spots. How do we figure out the correct amount of handicap parking spots to have?  The answer is…

Thank you, In this case, 75 stalls. Three would need to be accessible spaces (not handicap), of which one of those would have to be van accessible.  One thing to consider is the current count. If this property has 5 existing accessible spaces, it is best to put back those 5.  The reasoning is that the standards are the minimum and it is not usually a good idea to decrease accessibility on a property.  This is why it is important to plan these layouts with an ADA specialist, you don’t want to create a problem in the future by guessing or overestimating today.

How many parking spots do I need?

 

 

At Calvac Paving, we have CASp (Certified Access Specialists) available. Our CASp specialists serve the San Jose area as well as the greater Bay Area.


Calvac Paving to Exhibit at CACM’s Northern CA Law Seminar & Expo January 24-25

Calvac Paving, a Bay Area asphalt and concrete maintenance company, is attending at CACM’s (California Association of Community Managers) Northern CA Law Seminar & Expo.

This event will be held January 24th and 25th at the  Santa Clara Convention Center. According to a Calvac Paving spokesperson, the event is “California’s premier event for the community management industry!”

The Calvac Paving team will be exhibiting at Booth #1021 in the Paradise Found Exhibit Hall. Also, they are Welcome Reception Drink Ticket Sponsors, to be held on Thursday January 24th from 4:30 pm to 6:30 pm. The reception will include appetizers, a no-host bar and informal networking.

Beyond the exhibit, the event will enable many in California’s management industry to learn and grow professionally. CACM notes, “Let’s face it, the demands and expectations community managers face have never been greater. Do you have the knowledge, expertise and tools you need to meet and exceed those expectations and move your career forward? At this year’s Law Seminar & Expo, we’re bringing California’s best and brightest to help you get there.”

“We hope that all attendees can stop by our booth at the exhibit,” said a Calvac Paving spokesperson. “With over 40 years of experience in the industry, we are looking forward to sharing our expertise and meeting new clients!”

About Calvac Paving:
Calvac Paving is a full-service asphalt and concrete maintenance company that has been serving the greater Bay Area since 1974.

Calvac Paving
2645 Pacer Lane
San Jose, Ca 95111
408-225-7700


Bay Area Asphalt & Concrete

Since 1974, Calvac Paving has taken great pride in serving the Bay Area Asphalt & Concrete construction needs.

Consistently ensuring the highest possible quality and best results for clients means keeping pace with the latest innovations in paving technology and techniques. Calvac Paving’s dedicated and knowledgeable paving professionals have amassed considerable experience in everything from new construction to refurbishment and repair of old, worn paving such as sidewalks, parking lots, roadways and more. While many paving companies focus solely on one kind of paving, Calvac Paving can boast extensive experience with asphalt, concrete and earthwork, from initial  grading to final striping. Among the services Calvac Paving offers to the public are:

Calvac Paving offers the following Services

  • New Construction
  • Grading
  • Concrete Placement
  • Asphalt Placement & Compaction
  • Striping
  • Asphalt Seal Coating
  • Pulverizing In Place
  • ADA upgrades to existing structures
  • Crack Sealing & Repair
  • Petromat Overlays
  • Parking Lots
  • Asphalt Repairs 


In addition to these services, Calvac Paving takes its obligations to the environment we all share very seriously. We use the latest green and eco-friendly policies and practices at every stage of construction from the project’s start to the final cleanup and disposal of waste products at the end.  Most business owners would agree that taking steps to be a greener business is a win-win for everyone.

“Green” Paving?

While this phrase may sound oxymoronic, asphalt pavement has consistently been reported as the most frequently recycled material in the nation since 1993. Continuous improvements in recycling technology and paving practices and techniques that permit for more adaptive uses of existing paving materials have fueled this recycling boom with regards to asphalt and, to a lesser degree, concrete. Purely virgin asphalt, also known as “hot-mix,” is relatively rare today because of the numerous advantages of recycling asphalt in place. However, many old-school pavers often still refer to “warm-mix,” discussed below, as “hot-mix” regardless of this designation’s true accuracy.

Most asphalt you see on the road today consists of rocks, also called aggregates, sand, binder material and additives such as shredded rubber tires, pig manure and metal slag, to name a few. These additives are re-purposed and treated in such a way as to make them a cohesive part of the overall mix and increase the mix’s performance. This transforms relatively useless or even outright hazardous materials into reasonably safe and effective filler materials for asphalt mixes. However, the most common fillers are recycled asphalt paving and asphalt shingles. Using these materials in “warm-mix” asphalt paving sharply decreases the amount of virgin oil binder needed to create a safe driving surface with proper internal cohesion and compactive properties.

According to the National Asphalt Paving Association, in the 2013 construction season alone nearly 68 million tons of recycled asphalt and almost 2 million tons of asphalt shingles were used as recyclables, at a savings to taxpayers of around $2 billion. The use of recyclables has increased 21% since 2009 and represents over 99% of all in situ, or existing, asphalt paving being recycled and re-purposed instead of ending up in landfills.

Calvac Paving is proud to be part of an industry that is able to recycle and reuse apparent waste materials so efficiently and effectively. Calvac Paving takes a deep interest in ongoing advances in procedures and techniques that allow for new ways to re-purpose existing pavement, whether it is asphalt, concrete or something else.

 The Future Of Asphalt & Concrete

The interest in new advances is not limited to asphalt, because Calvac Paving is dedicated to finding more efficient and ecologically sound ways of achieving the same overall goals. One development that Calvac Paving is watching with great interest is so-called “bio-concrete.” In this type of concrete, a regular concrete mix is impregnated with tiny plastic capsules containing a type of bacillus bacterium which feeds on calcium lactate and excretes limestone. The capsules dissolve when exposed to water, activating and freeing the dormant bacteria within to begin the healing process. This landmark technology could result in admixtures for other types of paving, increasing the strength, performance and longevity of all kinds of paving and reducing necessary time-of-life repairs dramatically.

As paving technology and techniques evolve, Calvac Paving intends to retain our leadership position in adopting new practices, prioritizing greater safety, security, durability and environmental awareness in every task we undertake. From new builds to maintenance and repair of existing paving projects, Calvac Paving wants to ensure that its products and services stand the test of time, just as we have since 1974. For your next paving project, whether you’re starting from scratch or trying to determine the most efficient and effective way to repair or replace worn, cracked or improperly placed paving materials, Calvac Paving’s experienced personnel can become stakeholders in your properties. We welcome the opportunity to show you why Calvac Paving has been building the Bay Area for over forty years, giving real results that stand the test of time!

Calvac Paving

 

(408)225-7700

(650)694-7944

 (831)375-7944

 

 

 


Calvac Paving Is Hiring!

Calvac Paving

Due to the current shelter in place order from the County of Santa Clara Public Health Department, Calvac is rapidly building a backlog of pending projects.

When this ordinance lifts, we will hit the ground running and we anticipate a need to increase our field staff by 50% to 100%. Although we have not laid off any employees, we understand that many Bay Area workers have been laid off during this difficult time and we hope that Calvac can alleviate some of this burden for dozens of locals.

Please fill out the application online and we will evaluate and contact potential candidates while the order is in effect.  Then we will be ready to go back to work as soon as this ordinance is lifted.

Stay Safe,
Jim Adam
President

Calvac Paving, a San Jose based Asphalt and Concrete maintenance, and construction Contractor is looking for Equipment Operators, Laborers, and Skilled Workers. We are looking for full-time workers and experience in Asphalt and Concrete construction is a plus.

To Apply Please Download The Application Below.

You can mail it to:

Calvac Paving
2645 Pacer Ln,
San Jose, CA 95111

To Fax Your Application, Please Fax To 408 225-7733

Application

 

If you can’t download the above Application, please fill in the information below and Calvac Paving will contact you.

 

Calvac Paving Is Hiring

  • This field is for validation purposes and should be left unchanged.

 

 

About Calvac Paving

Over the past 45-plus years, Calvac Paving has become one of the most experienced and reliable Asphalt and Concrete contractors in Central California. Our focus on individual project attention and meeting our STAKEHOLDER’S expectations has helped us to add scores of Property Managers/Owners, HOAs, Corporate buildings, and campuses, Retail as well as Multifamily properties to our list of appreciative clients/stakeholders.

 

 


Studies Show Cigarette Butts May Be The Next Hot Thing In Paving

Every year, about 6 trillion cigarette butts are produced worldwide, or about 800 discarded butts for every man, woman and child on the planet. Not only are these butts an unsightly and expensive waste disposal problem, but the toxic chemicals which the filters trap and contain leach out over time to poison soil, groundwater, rivers and oceans. Now, a researcher at RMIT in Melbourne, Australia says he may have found a surprising answer to this problem: incorporate cigarette butts into asphalt aggregate!

According to the researcher, by coating the butts with a combination of paraffin wax and bitumen, the black substance also known as “tar” that gives asphalt its distinctive properties, it is possible to trap toxins which used butts contain while repurposing them as a lightweight, flexible asphalt aggregate component. This reduces the overall weight of an asphalt mix design while removing a potential 1.2 million metric tons of waste from the planet’s biosphere.

Another interesting side effect of adding cigarette butts to asphalt is the reduction of heat. Asphaltic concrete has been directly linked to the so-called “urban heat island” effect, caused by vast amounts of asphalt in a relatively small area. Cigarette filters are mostly made from cellulose acetate, a fibrous material which is spun down to look and feel like cotton. This material serves as an insulator which filters out toxins in cigarette smoke while helping prevent burnt fingers for those who simply must light up. These filters reduce thermal conductivity and reduce the thermal density of the mix. When placed as part of a roadway the asphalt containing the filters absorb and diffuse more heat, resulting in a cooler surface temperature and less radiant heat being redirected into the environment.
The final paper on this study states that butts coated with bitumen satisfied requirements for medium- and heavy-traffic mix designs. This would apply to interstates and surface streets with heavy commercial volume. Streets in residential neighborhoods, parking lots not marked for commercial vehicles and similar applications might use paraffin-coated butts. In the study, the research team used 10kg, 15kg and 25kg (about 22, 33 and 55lbs respectively) of encapsulated cigarette butts per cubic meter (1.30795cu.yd) to determine the ideal asphalt mix.

Since cigarette smoking on a global scale isn’t likely to go away anytime soon, finding new ways to deal with  this waste is becoming a more pressing problem every day. Estimates claim that the mass of discarded cigarette butts may increase by as much as 50% by 2025 because of the increase in global population. Knowing this, recycling these butts into asphalt and other lightweight construction materials, as the author of the study proposes, may help us all breathe just a little bit easier.

At Calvac Paving, we know we only have one planet, and it’s up to all of us to care for it the best way we know how. There’s no reason that building a solid product and being ecologically responsible should be mutually exclusive, and we’re always on the lookout for new ways to incorporate green ideas into our building design.. We will keep a close eye on this and other “green” developments in construction materials, so we can continue to deliver the most environmentally sound products and processes possible without compromising on quality or durability. It’s all part of our commitment to make the communities we serve, and the world we all share, a safer and healthier place for everyone.