Wednesday, May 30, 2018

Asphalt Pavement Maintenance Planning


Do you have an asphalt maintenance plan in place for your facility? As asphalt surfaces age, erode and become brittle, proper periodic assessment and treatments are essential in maintaining a quality surface and infrastructure. The appropriate course of action can save time and money by making sure the maintenance applications are matched to the severity of the pavement problems.

Understanding Defects

There are typically three types of asphalt failures: Surface, Bond, and Structural Failures. For surface failures there can be raveling, and transverse or longitudinal cracking problems. Raveling is the loss of aggregate from the surface as a result of abrading action from wheels. Longitudinal cracks run in the direction of traffic and transverse cracks are 90 degrees to longitudinal cracks. Longitudinal cracks are typically caused from shrinkage.

Bonding failures are usually in the form of slippage between two layers of surfacing causing cracks in the upper layer. In some cases the combination of bonding and crack failures causes the top layer to flake off in chunks.

The most severe defects are structural cracking which can include fatigue cracking and rutting. Fatigue cracking results from the surface being flexed up and down from heavy loads going by. The cracks are very close together and look like an alligator's skin. This defect occurs when the underlying road section can no longer support the loads being applied to the pavement. One heavy truck can flex and damage a road more than thousands of cars passing over the same spot. Rutting is a depression of the pavement in the wheel path and is usually continuous throughout a pavement. It can occur in just the asphalt layer or throughout the entire infrastructure of asphalt, base, and soil.

Types of Treatments

The difference types of actions one can choose will vary with the defects and extent of damage found on the pavement surface. The potential solutions can include surface seal coats, crack filling, slurry seals, selective dig-outs and patching, or full overlays.

Within the use of surface seal coats, there are several to choose from. They include slurry, cape, micro-surfacing, fog, and rubberized chip seals to name a few. A fog seal contains no aggregate or sand and is spray applied to keep the surface aggregate in place. A surface seal coat is a mixture of sand and asphalt emulsion with other fillers. It provides a uniform black surface and protects from UV damage and reduces water intrusion. A slurry seal consists of emulsified asphalt binder, a graded fine aggregate additive and water and is applied by machines with pressure.

An overlay is used over the top of an existing pavement surface to strengthen and protect the original structure. It can be applied at various thicknesses and also can be rubberized. Sometimes milling is required before the overlay when excessive heights are an issue to prevent any potential trip hazards. Also the use of paving grids and fabrics over the top of an existing cracked pavement can provide additional strength and water intrusion protection.

Choosing a Plan of Action

Parking lots primarily utilize asphalt seal coats, slurry seals and sand seals. These seals are designed for use in areas that will have constant turning forces. The oils are harder than chip and cape seal oils and lessen tire marking on the pavement.

Streets generally utilize slurry, chip, cape seals or micro-surfacing. These treatments vary depending on the conditions of the road. Crack filling and dig-out repairs must be completed prior to the placement of the surface treatments to obtain the maximum performance life.

So you can see there are various failures modes from minor surface issues to major structural failures and there are a wide variety of treatments to deal with them. Plus following an overall maintenance plan through the lifecycle of the pavement will help prevent early failure and maintain the asset through its expected lifetime. The best way to get started is to have an asphalt engineering firm or quality asphalt contractor assess your situation and provide guidance on what the most economical course of action would be for your situation.


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Sunday, May 27, 2018

How to Know When to Seal Coat or Repave Asphalt Pavements

What is the most cost-effective resurfacing solution after repairing cracks, potholes and depressions in asphalt driveways and parking lots


By Jeff Lax

When it comes to old, worn asphalt driveways and parking lots, commercial real estate owners, property managers, and even owners of single-family homes struggle with the same questions: Do we repave or sealcoat after making repairs to cracks, potholes and depressions? What is the most cost-effective and durable solution?

The industry has debated this issue for decades, and what has been learned is that each option has lasting, dramatic effects and that they actually complement one another. That’s the information pavement maintenance contractors need to convey to their clients who are trying to decide which pavement maintenance option best suits their needs and property.

Sealing

Sealcoating is one of the most important steps to protecting an owner’s investment in an asphalt driveway or parking lot. Sealers consist of emulsions that combine asphalt or refined coal tar with clays, mineral fillers, and water. Once applied, the water evaporates and the emulsion hardens to form a protective coating. It also becomes a beautiful black surface that adds curb appeal, giving a single-family home, multi-family residence, or commercial or industrial property a polished look. Industry experts agree that driveways or parking lots lacking the sealer can generally last only five to six years before the beginning stages of breakdown.

Initial sealing should occur six to 12 months after the asphalt surface is laid to allow the pavement to “cure” so oils can escape and the surface becomes ready for sealer. The initial sealer application forms a barrier to prevent water penetration and to inhibit deterioration of the asphalt binder by oxidation and over-drying.

As unprotected pavement ages the asphalt binder hardens, losing flexibility and becoming increasingly brittle. Ultraviolet rays from the sun break down the carbon bonds in asphalt, further weakening the pavement. Also, daily and seasonal cycles of heating and cooling cause the pavement to expand and contract. These stresses eventually exceed the pavement’s ability to flex, and cracks form. If water seeps into the cracks and freezes, the cracks expand, allowing more water to penetrate, making the cracks wider and deeper. This cycle leads to accelerated deterioration of the parking lot surface. Early sealcoating can prevent all these preliminary dangers to the life of the asphalt.

Sealer is typically the most cost-effective solution and should be reapplied every two to three years as preventative maintenance. In fact, several government and Asphalt Institute studies have shown that neglected asphalt pavement can cost up to five times as much to repair as asphalt that has had a regular maintenance program, including sealcoating.

Pavement maintenance begins by filling cracks, patching deteriorated areas, and cleaning (and possibly priming) oil-saturated spots on the pavement surface. The asphalt also must be cleaned of dirt and debris before sealer can be applied.

While some homeowners sealcoat their driveways themselves, professional contractors not only apply a high-quality sealer material but also have professional equipment such as crack cleaners and power blowers that often enable them to perform a longer-lasting, high-quality job. Plus, professional contractors can handle other pavement repairs that a homeowner won’t be aware of, so property managers at any level will be best served by hiring a pavement maintenance professional to handle their pavement.

Repaving

Repaving is the only decision for driveways or parking lots that have severe deterioration, deep wide cracks, subsided depressions and numerous potholes.

An asphalt overlay consists of a compacted layer of one-and-a-half to two inches of hot mix asphalt being placed over the existing asphalt, essentially giving the driveway a new surface. Just as with sealcoating, the first task is repair of existing pavement. Areas where the pavement surface has slumped indicate failure of the stone foundation supporting the pavement. These areas require digging out existing asphalt, and repair and compaction of the stone base with new material before patching with asphalt mix to prevent trouble spots from returning after repaving. Then an overlay is placed over the old surface. No sealcoating should be added for six months to a year, just as with any newly constructed pavement.

And while an asphalt overlay can begin to deteriorate within five to six years without maintenance, it could last up to 25 years with regular upkeep. The upside to installing an overlay is the pavement has a renewed wearing course, providing a pliable, flexible surface. Also after the overlay, the maintenance program can start over, lending to a virtually brand new drive or lot. However, extreme weather, heavy loads, and shortcuts during construction could lead to premature wear and failure. The downside of repaving is that it is expensive (typically thousands of dollars more than sealing). Plus, if the original asphalt isn’t properly cleaned and prepared, cracks and uneven sections may return, as well as other problems that may not have previously existed such as delamination of the overlay because of poor adhesion to the old pavement.

What’s Better for your customer?

The amount and regularity of repaving will differ from climate to climate, and even when asphalt is maintained properly an asphalt overlay will be needed every 20 to 25 years.

Regardless of whether you repave or repair, sealcoating is one of the most important aspects of any pavement maintenance effort as it protects asphalt from weathering and degradation and extends pavement life. Without sealer, the asphalt could require an overlay in as little as five to six years, costing thousands of dollars. When comparing costs, industry experts believe the best investment a homeowner or commercial property owner can make is a well-tailored maintenance program that includes regular sealcoating.

Article Source: https://www.forconstructionpros.com/pavement-maintenance/preservation-maintenance/sealcoating-equipment-materials/article/10303124/how-to-know-when-to-seal-coat-or-repave-asphalt-pavements#&gid=1&pid=2

Thursday, May 24, 2018

Construction of Asphalted Surfaces - How to Choose A Contractor


Are you planning to hire a contractor who will take charge of the construction of a drive way, parking lot or a tennis court for you? You need to be prepared to spend good money on this project in order to ensure that the surface that is created lasts very long and does not give you any trouble. However, are you certain that the contractor you are planning to hire is a reliable one? The following tips will help you select one who will do the job for you in the best manner possible.

At the very outset, you need to check whether the construction company has the necessary expertise and equipment to get the job done. Asphalting a surface, even one as short as your driveway, is a complicated job involving various processes. If the contractor is not able to handle the job properly then the surface that is created will not last very long.

At the same time, there is a possibility that well established and popular businesses will not be able to give you the level of attention you require. You should only give your business to a company whose representative takes the time out to understand what your specific needs are and also whether your property has any unique problems. This will ensure that you are offered a solution that matches your needs.

Make sure that you deal with a company that is known for sticking to precise timelines. The last thing you need is a construction crew stationed on your property for days on end. The company you give your contract to should be able to inform you in writing regarding the completion date of the project. You will also get a good idea about a company's level of professionalism from its ability to stick to a schedule. It is also a very good idea to enquire whether the contractor has taken the necessary insurances that will protect you in the event of any accident whilst the work is going on in your property.

Feel free to ask the company for any references of clients for whom it has done work in the past. If the construction company is hesitant about sharing this information then you have every reason to be suspicious about the quality of services it offers. If you choose your contractor based upon these tips then you can be sure that you will be satisfied with the results of its work.


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Monday, May 21, 2018

Asphalt Paving For Driveways And Parking Lots - The Asphalt Promised Land


STOP! You know it's there. You see it every day when you come into work. You even walk around the crater to get to your front door. It's your parking lot or driveway, and you've been ignoring it every day hoping it will go away. I call it "Asphalt Denial". You don't want to know what needs to be done because you know asphalt paving can cost a lot of money! You might have already had an estimate that put you in cardiac arrest and you buried in the bottom of the "To Do" pile that has been sitting there for 5 years. You might even have been beaten over the head with the "Fix this now or Else Stick" threatening that your parking lot will implode and cause the end of the world. You know you need to do parking lot maintenance, but can't figure out how to get started and finish it without putting you into financial ruin. You're not alone. Many people face this issue every day. I have some suggestions that can get you to the "Asphalt Promised Land".

First, get your estimates. Request quotes that are broken down into sub-sections including asphalt paving, repairs, sealcoating, crack filling and striping with costs associated with each section. This way you can work on a section at a time.

Next, do you paving repairs first. Not fixing potholes can do the most damage to a parking lot or driveway in the shortest amount of time. They can also damage the vehicles that hit them. Typically this is the highest cost in an estimate. If you're on a tight budget, you can do the repairs over several years. Set a budget figure you want to spend, and focus on any repairs in high traffic areas first such as drive lanes or walking areas then move out to low traffic areas like parking stalls. There's a difference between repair and patch. Repair your potholes, don't patch them!. If you repair the holes, the repairs will last 15-20 years.

3rd, get your cracks filled and sealcoating done. This step may happen several years down the road, but it will preserve what you have and what you have been doing the past few years in repairs. Sealcoating is typically a few cents per square foot but makes a difference in the longevity of a parking lot. Sealcoating and striping will spruce up the look of the parking lot as well.

Finally, be patient. This might take several years depending on your cash availability, but will pay off in the long run in preserving your parking lot. Remember, incremental improvements will be better and cheaper than doing nothing. Stick with the plan; keep making progress enen just a little bit. Your lot will look like new very soon.


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Friday, May 18, 2018

Things to Consider Before Hiring An Asphalt Paving Company


The use of asphalt demands specific methods as well as tools. So when it's time for you to repave your driveway, the sidewalk of your business or even a parking lot, you have to pick an asphalt paving company that provides the absolute best service for your needs.

For a number of individuals, choosing an asphalt paving company appears like an easy thing to do. Usually, you only contact several companies over the phone, get a quotation, and then pick the cheapest one. Though this method may be acceptable for many, it's certainly not for someone who is after quality results, or if the work carried out is worth every penny spent. There are numerous points you need to consider before you pick a paving company for your project.

Listed here are several recommendations when choosing a good asphalt paving company

The first thing you want to do is to actually gather info about the outfit. Check the company's background, the number of years they have been in business, as well as feedbacks of their former tasks or jobs. It's similarly essential to find out if the company's license and insurance coverage are legal as well as in good standing. Ensure that the company is connected well for your own protection.

An additional important suggestion is to talk to the individual in charge, or ideally the manager of the company. You would want to speak with them with regards to information about the prospective job like the steps they will undertake when it comes to paving, how long the process will be, and other vital issues that you'd like talk about. This is your chance to obtain information concerning the business and it will make you determine whether this company satisfies your expectations.

Ask for an estimate before starting the task. Almost all businesses will undoubtedly support you with this particular demand. It will most likely help you to know if the budget you allotted for this certain project is good enough.

Ask the company if they provide an all-inclusive service. You won't want to use one company with regard to sidewalks and a totally different one for your driveways or parking lots. With regards to convenience, choose an outfit that can take care of all your needs.

It is extremely necessary to take into consideration the expertise of the asphalt paving company before hiring them. A legit contractor certainly has past projects that they will show off. You can attempt requesting some people who might have been former customers, or have worked with said contractor about how good the end result of their work is.


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Tuesday, May 15, 2018

Ashpalt Paving is a Great Choice!



Asphalt pavement is a very strong and durable material which makes it the best option for most all paved surfaces. If it is properly laid, it need not be replaced for twenty to twenty five years. Asphalt pavement is also the most popular choice for applications such as driveways, parking lots, roadways, airstrips and more.

Approximately 80% of all asphalt pavement is recycled when it is removed. If you are looking for lasting pavement that can be used over and over again, asphalt pavement is the best choice.

Additional benefits include:
  • It costs less to construct and maintain asphalt.
  • Asphalt construction projects can be completed more quickly.
  • Asphalt pavements are the smoothest pavements.
  • Asphalt pavements generate less noise.
  • The contrast of the black pavement and white lines make it easier for motorists to understand driving and parking regulations.
  • Asphalt pavements last significantly longer than alternative pavements.

Saturday, May 12, 2018

The Professional Qualities of a Paving Company


If you are a property owner who is in need of paving services, you much be very careful looking for a company to hire. There are numerous, fly-by-the-night paving contractors out there that will take advantage of you and your money. To avoid a botched paving job, a huge mess, and a financial loss, be sure to do your research and always feel comfortable asking questions. Continue reading to learn which qualities you should look for in a paving company.

Doing Your Research

The best way to research dependable paving companies in your area is to look online, and to ask around for references. Word of mouth is a great way to find a reliable company to work with because the person giving the recommendation has experience working with the company in the past, and likely has proof that they did a great job. Looking on the internet is another terrific method because you will be able to locate the companies in your area, and review their presence online. You can peruse their website for information about their services, look for customer reviews, pictures of their work, and their company contact information. Once you have a list of companies you would like to interview, be sure to choose one that checks off on virtually all of the following credentials:

Licensing and Insurance

One of the most important credentials to look for is proper licensing and insurance. You want a licensed and insured company because this means they are true industry professionals and a legitimate business. Without a license, they could be any Joe Shmoe with a few paving tools and a bucket of bitumen from the home improvement store down the road. A license proves they are a real company, and insurance proves they are liable and covered in case of an accident or mistake.

Experience

The second most important quality a licensed and insured paving company should retain is experience, both in business and skill. It is hands-on experience that counts when it comes to results. Training only gets a paver so far; it is the learning curve of experience that proves their proficiency. Choose a paving company that has been around for a long time, because it proves they have experience and a strong customer following.

Company Reviews

A licensed and insured paving company that has served their communities for over a decade should have some customer reviews to read. If they do not, it could be reason for concern. Read their company reviews online, or call and ask where you can find their past client testimonials. This will give you an idea of how they do business and what their clientele thinks of their service.

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Wednesday, May 9, 2018

Asphalt Paving Driveway Maintenance Tips


Asphalt paving or Hot Mix Asphalt is typically what one thinks of when installing driveways of new homes. It is by far one of the least expensive methods for paving a surface in new home construction sites. Properly installed asphalt paved driveways have a life expectancy of about thirty or more years.

These asphalt paved driveways consist of rock particles, sand, and asphalt cement, which make it flexible and durable at the same time. New asphalt is by far the most flexible because it still retains many of the lighter hydrocarbon oils that make up its DNA structure. Crushed gravel makes up the foundation on which the asphalt is laid, to promote stability of the asphalt structure. By laying five to eight inches of gravel beneath the asphalt you are ensuring a greater life expectancy for your asphalt driveway. Also by having your asphalt paving company install your asphalt finish at least one foot before the asphalt covers the gravel, you are allowing your asphalt driveway to not crack when visitors drive to the edge of the finished surface. This will give greater flexibility and allow your asphalt driveway to look as nice as it can for as long as possible. The next step is to seal your asphalt driveway after about six to nine months.

The new asphalt driveway must cure out over that time frame. If sealed to quickly, the hydrocarbon oils that give the asphalt paving its flexibility will cause it to be too flexible, thus, allowing greater marks to exist over time. When it is time to seal your asphalt paved driveway, remember to put at least two coats of high quality seal coat over the entire driveway. This is to be repeated every three to five years for the maximum life expectancy of your asphalt paved driveway. By being patient and following this advice, your asphalt paved driveway will be around for many years to come. Take good care of it and it will definitely add character to your home. Asphalt paving or Hot Mix Asphalt is and will always be the best alternative for those seeking to pave surfaces in a flexible manner.

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Sunday, May 6, 2018

Reasons Why You Should Maintain Your Asphalt Pavement


If you own a property that has asphalt pavement for a driveway or parking area you will need to take necessary steps in order to maintain the surface. If the proper steps are taken to maintain the asphalt surface, it can last for many years. There are some costs involved in maintaining the parking lot but ultimately it is much cheaper than having to replace it.

You should always try to keep water from penetrating your asphalt's surface. Water is one of the largest factors which can lead to asphalt deterioration. Usually water will make its way into the asphalt by the cracks in the pavement's surface. Crack filling will help to prevent the water from entering into the asphalt's surface. Crack filling is a process where rubberized asphalt material is heated and then applied into the crack in the asphalt's surface. The rubberized asphalt dries and fills the crack, thus keeping water from entering. All cracks in the surface should be filled before more troublesome, larger more expensive repairs are needed. If left untreated, these cracks will eventually lead to potholes. Potholes are large holes in the asphalt's surface where the water has affected the sub grade under the surface.

Another factor in maintaining an asphalts surface is sealcoating. Sealcoating is a necessary step in maintaining your parking lot or driveway. Sealcoating is applied to the surface of the pavement using a sprayer and a squeegee. The sealcoating material will help to defend against any ultraviolet rays. The ultraviolet rays can break down the binder material in the asphalt material. As the binder material is broken down, aggregates and sands become loosened. The sealcoating process can normally be applied quickly and easily.

It is a good idea to have these steps applied by a professional. You can normally find a professional in the local phone book or on the internet. You can search asphalt paving companies or asphalt paving contractors to receive the help that you are seeking.


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Thursday, May 3, 2018

Advantages of Asphalt Paving Over Concrete


Today, Asphalt has become a synonym to paving and is a widely installed form of paving. It is preferred both in the commercial as well as industrial sectors for its cost-effective and durability. It is chosen over other forms of paving like concrete by property owners and business owners alike.

A comparative study of the two forms of paving mentioned above gives a better idea about the right kind of material for driveways, parking lots, pavements, walkways and other property peripheries.

Some of the advantages of asphalt paving over its concrete counterpart are mentioned below:

Time-effective The most important factor that supports Asphalt paving is its time-effective. It is the easiest paying material to prepare and also dries up quicker than concrete. Hence, potholes, damaged parking lots and driveways are mended easily with asphalt in lesser time.

Initial Cost Although, the long-time cost of concrete is lesser than Asphalt paving, Asphalt paving has less initial cost. It is economical and can easily used to repair and restore damages. Its up front costs are quite less; hence, the long-term maintenance costs of asphalt are overlooked.

Maintenance Cost The maintenance cost for asphalt is much less than concrete. Over a period of time, the cost ratio for asphalt is definitely more than concrete, but its one-time cost is less than concrete.

Wear and Tear Concrete is more prone to cracks and require a lot of seals and maintenance in the long run. They develop cracks and fissures easily than in asphalt paving. Hence, asphalt is comparatively less prone to wear and tear in quick time.

Flexibility Asphalt is an extremely flexible paving material and can be mould and used for any kind of paving and construction work. It is widely used in both commercial and residential sectors for construction and restoration work.

Weather Resistance Another important factor favoring the installation of asphalt paving is its long durability and weather resistance. It is resistant to easy wear and tear due to climatic change.

Thus, it becomes clear that the role of paving expert in our lives can not be avoided. One can make his or her home exterior beautiful by choosing experienced Paving contractors.

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