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What Causes Asphalt Pavement to Deteriorate?

Asphalt pavement is the most commonly used material the world over for roads, airport tarmacs, parking lots, and driveways because it is very durable, resilient, cost-effective, and quick and easy to put down. When proper inspection and asphalt maintenance is conducted it can be expected to last for as much as 25 years. However, it’s not indestructible, and there are many factors that can cause pavement damage over time, including exposure to the elements, improper construction techniques, and just normal wear and tear. Here are some of the most common causes of asphalt pavement damage.

Causes Of Asphalt Pavement Deterioration

  • Water and moisture. Water will always seek out the cracks and seams on any surface, breaking down the material that holds the asphalt together and washing out the foundation from underneath, leading to cracks and collapse. This is especially true in areas with heavy rainfall and poor drainage.
  • Heat and sunlight. The UV rays from the sun and the heat they generate will eventually dry out the flexible asphalt material and cause it to lift up and separate from the compacted material of its foundation, again causing cracks and fissures that also allow water in leading to further pavement damage.
  • Petroleum and other chemicals. Asphalt pavements that are used to accommodate motor vehicles such as roads, airport tarmacs, and driveways are constantly exposed to leaks of oil and gasoline as well as the chemicals emitted from combustion. This can cause the asphalt to begin to break down in as little as a few years without proper maintenance. Asphalt companies routinely do repairs on damage from these chemicals.
  • Utility work. When utility companies have to service underground gas, sewer, or power lines they often don’t do a very good job of repairing the asphalt pavement they have to tear up to get at the lines, leading to immediate and accelerated future damage.
  • Tree roots. Especially in dryer regions or those with sandy soil where tree roots have to grow further out in search of water, they can do a lot of damage to any asphalt pavement they encounter by undermining the foundation and causing a collapse of the road or driveway.
  • Heavy traffic. Obviously any asphalt pavement that has hundreds or even thousands of heavy vehicles traveling over it every day is going to need repairs of potholes and fissures more frequently due to normal wear, and asphalt companies are constantly at work maintaining them, as every driver knows.
  • Expansion and contraction. Asphalt pavement that is exposed to extreme cold and hot temperatures will expand and contract as it heats and cools. This causes it to weaken and can lead to upheavals, or blowups, that can happen literally overnight and cause a major hazard to drivers and their vehicles.
  • Poor construction and application. Improper construction techniques are a common cause of asphalt pavement damage. This usually means that the base foundation below the asphalt was improperly compacted or the asphalt was too thinly applied or applied at the wrong temperature.

When asphalt pavement has been installed by a reputable contractor and is properly inspected and maintained it will normally provide many years of service. It’s important when choosing which asphalt companies to use that they have the experience and expertise to do the job right and be available to service their work.

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Pavement and Fuel Consumption: Is There a Link?

Fuel efficiency in motor vehicles has been a major concern ever since the 1970s and has garnered even more attention in recent years due to the global warming debate. Interested parties include environmentalists, government agencies, vehicle manufacturers, the trucking and transportation industries, and the everyday consumer driving their cars. The focus has mainly been centered on creating better vehicle designs, with more aerodynamic forms and fuel-efficient engines, as well as alternative fuels. But recently a whole new field of environmental science has emerged that is taking a close look at the pavement that vehicles drive on and how it affects fuel efficiency. Their findings so far indicate that pavement does indeed have a significant impact on how much fuel a vehicle uses with far-reaching implications for those concerned with road construction and asphalt maintenance.

Roughness And Responsiveness

Asphalt is by far the most used material for building roadways around the world, accounting for about 90% of the 2.5 million miles of pavement existing in the U.S. and 3.2 million miles in Europe. The scientists and engineers who are studying the relationship between pavement characteristics and fuel consumption are generally measuring the effects of three basic factors:

  • Roughness – The smoothness of the roadway affects the drive train components and suspension system of a vehicle as well as the flexing of the sidewalls of the tires. A rough pavement makes these systems work harder, which in turn causes the engine to work harder to overcome these stresses, using more fuel.
  • Macrotexture – This is a measurement of the pavement surface that has an effect on the friction and resistance between the tires and the road.
  • Structural Responsiveness – This is a measure of how much a pavement material will deform, or give, under the weight of a vehicle passing over it.

All of these factors taken together have a big impact on fuel consumption. And they change over time as the roadway is used and as natural elements such as heat, cold, and water deteriorate the pavement and cause potholes and rough surfaces requiring asphalt repair.

Smoother Is Better And Asphalt Is Best

The research has shown that the smoothness of pavement is the dominant factor in fuel efficiency. The rougher the road, the greater the fuel consumption. And the studies have shown that asphalt is the best material for the construction and maintenance of smooth pavements. A U.S. General Accounting Office (GAO) report in 1999 stated: “Concrete roads may produce rougher readings than asphalt roads, even if the concrete road is of very high quality. Features such as joints between sections can contribute to the roughness of concrete highways.”

It’s clear that making a bigger investment in asphalt maintenance on the nation’s highways and byways at the federal, state, and local level will have significant benefits for fuel-efficiency. This would not only help to make for a cleaner environment, but it would save the trucking and transportation industries, as well as the average consumer, a lot of money on fuel costs, which would be good for the economy. It would also mean significant savings on vehicle maintenance and repair.

Adequate asphalt maintenance and repair should be a high priority for the nation’s policymakers. It’s the right thing to do.

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How to Sealcoat Edges

No matter why or where you are building a parking lot or sidewalk, sealcoating the edges is important for various reasons. By simply adding a thin liquid layer over the paved surfaces, sealcoating can help you maintain your parking lot or sidewalk for many years to come. That said, the following is an overview of the benefits of sealcoating as well as the steps you need to take to properly sealcoat your sidewalks and parking lots.

Benefits of Sealcoating

If you are wondering why you should sealcoat your sidewalks and parking lots, the most common benefits are as follows:

  • Prolongs Life Expectancy: One of the top benefits of sealcoating is that it helps to prolong the life expectancy of the asphalt pavement by providing a protective layer that helps to safeguard it against water, vehicle fluids, UV rays, and more. It also helps to fill in surface damage.
  • Saves Money: Given that sealcoating is a low-cost method, this helps you to save money over time on maintenance and other repairs.
  • Enhances Appearance: No matter if the asphalt is new or old, a fresh sealcoat will make your sidewalk or pavement look shiny and new.
  • Ice and Snow Protection: One special benefit of sealcoating is that it helps to accelerate the melting of ice and snow. Moreover, it also helps to protect the pavement from related issues such as water penetration, frost and/or snow damage.
  • Repair Minor Cracks and Other Wear and Tear: The process also allows you to repair minor cracks and other issues caused by everyday wear and tear.

How to Sealcoat

Now that we’ve gone over the benefits of sealcoating, let’s take a look at the steps you need to take to sealcoat your asphalt:

  1. Preparation: Before you can begin installing your sealcoat, you must prepare the area you are sealing. This means you will take the type to assess the condition of the area, clean the area with tools such as rotary brooms, commercial sweepers, and hand steel brooms. From there, you need to shut off nearby sources of water runoff, such as sprinkler systems.
  2. Repair: Once you have prepared the area, you must take the time to repair it. This involves filling cracks, repairing areas that have been seriously damaged, and repair things such as potholes.
  3. Application: After that, you will need to prepare the mixture to be applied to the asphalt. For longer-lasting results, apply two coats.
  4. Re-Striping: From there, you will need to re-stripe the pavement and/or apply any necessary markings that were covered during the process.
  5. Clean-Up: Lastly, you need to take the time to clean up and discard or store any trash and materials that are leftover.

Overall, if you are considering applying a sidewalk or parking lot sealcoat, you certainly should. Not only can it help to protect the pavement against ice and snow, extend the life of the pavement, help you save money on potentially costly repairs, and much more. While the process of applying a sealcoat is relatively easy, you should be sure that you have enough experience, knowledge, and stamina to complete such a job if you wish to do it yourself. Other than that, be sure to hire a qualified construction company you can trust.

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Spring Cleaning Your Parking Lot: A DIY Guide

Keeping a run down and the disheveled parking lot is a risky proposition. Holes in the asphalt can cause blown out tires, which is a nuisance and can lead to unnecessary tire repair requests. Customers tripping and falling on your property is even worse because they might hurt themselves and potentially sue for damages.

To avoid these scenarios, it’s best to focus on asphalt maintenance and repair. Tackle this project during the warm spring months to get your parking lot up to snuff. And then focus on maintenance to keep your property looking pristine and in good repair.

1. Regular Asphalt Cleanings Are an Absolute Must.

Cleaning your parking lot is about more than presenting an attractive appearance. While it’s certainly nice to keep a clean lot for your customers, cleaning and maintaining your lot will go a long way toward preserving the durability and lifespan of your asphalt.

Start by removing and eliminating all surface debris. Get rid of the garbage, leaves, and other trash and refuse built up marring the surface of your parking lot. By removing this gunk and debris on a regular basis, you’ll prevent damage and unsightly stains from ruining your attractive asphalt parking lot floor.

2. Fix Unsightly Potholes Using Proper Asphalt Repair.

Potholes are going to happen whether you like it or not. When water works its way underneath the pavement’s surface, it expands and contracts and gets underneath in the groundwater. This creates potholes that will otherwise ruin your asphalt.

Proper asphalt repair means completing the pothole repair process. This process consists of four steps and is simple enough for every DIY expert looking to save a couple of bucks by making the repairs themselves.

The 4 step process to fix potholes includes:

  • Cleaning out the pothole by removing unnecessary and unwanted dirt and debris that gets underneath the pavement. This debris can otherwise weaken a pothole repair.
  • Heating up the pothole is necessary for the elimination of excess moisture. Getting rid of this extra moisture from beneath the payment makes it possible to apply new asphalt.
  • Putting new asphalt in the pothole is the third step. For the most part, hot mix asphalt is the ideal choice to perform this repair. After applying it in the hole, you should compact the asphalt to increase resistance and ensure water reduction.
  • Cooling the new asphalt is the fourth and final step. If more debris is discovered around or near the repair, please remove it at this time.

All in all, it’s typically okay to drive on repaired potholes immediately after fixing the problem. So don’t worry about cordoning off the area because it’s an unnecessary inconvenience at best.

3. Sealcoating Is an Excellent Choice for Asphalt Maintenance.

Sealcoating is a powerful way to prolong the health and lifespan of your asphalt parking lot. Why? Simply put, it fills in the damaged areas on the surface by providing a protective coating.

Sealcoating is perfect because it prevents water damage, damage from vehicle fluid, and it even stops harm from powerful UV rays dead in its tracks. To achieve the best results with seal coating, you should apply a new coat every 3 to 5 years to gain maximum surface protection.

Each new seal coating application means giving your surface a fresh and updated look. It’s also the perfect way to guarantee proper asphalt maintenance.

Recap

In conclusion, please remember that parking lot of spring cleaning and maintenance is a must to keep your asphalt in excellent condition. Always remember to clean the surface, repair potholes as they pop up, and apply seal coating every 3 to 5 years to ensure proper maintenance and asphalt repair. If you follow these guidelines, your parking lot will maintain an attractive appearance for many years to come.

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The Top Ways to Remove Paint from Concrete

Do you need to remove paint on concrete, but you aren’t sure where to start? There are a number of methods for stripping it. These create a clean surface ready for repainting or concrete repair. Some important factors include:

  • How much surface area you’re dealing with
  • What condition the paint is in
  • Your technical skill level

Here are five methods for removing unwanted paint from commercial concrete:

Elbow Grease

If you have a small spill of wet or badly weathered paint, you may be able to simply scrub it off. You’ll need a scraper, a wire brush, some upper body strength, and plenty of patience.

Sweep the area and apply a cleaning solution. Diluted trisodium phosphate works well here. If you don’t have that or aren’t comfortable working with it, try soap and water. Wet the area down and let it sit for a few minutes before beginning to work. Re-wet the concrete as you go. If nothing else, you may be able to remove enough paint that you’ll only need one round of paint stripper to take off the rest.

Power Washer

If you have a commercial power washer, there is a chance that it can handle this problem. Power washers can be very effective for still-wet paint from spills. It may also be used to remove old, cracked, or peeling paint. However, dry and cured paint in good condition may require more aggressive methods of removal.

Paint Stripper

Paint strippers are very effective and can clear off large areas of paint. However, these chemicals can be dangerous, so follow the instructions carefully.

Start the process with a thorough concrete cleaning. Use a broom or vacuum. If necessary, scrub off sticky residue with soap and water.

Next, get a chemical paint stripper from your local building supply or home improvement company. If you know whether the paint is oil based or water based, use a paint stripper formulated for that. Otherwise, try products intended for oil based paint.

Apply the paint stripper. Make sure that you wear protective gear. Once the stripper has set for enough time (this varies by the brand), scrape up softened paint and scrub the area with a wire brush. If some paint remains, repeat the process.

Scouring Paste

To make a scouring paste, simply mix a chemical paint stripper with something absorbent. Many people use crushed cat litter or powdered clay. Next, apply the paste and wait. Fast acting paint strippers may require 20 minutes to soak in, while slower formulations may need several hours.

Scrape the excess paste off and then scrub the area. The combination of an abrasive with the chemicals should help lift the paint in one or two applications.

Soda Blasting

This is a ‘dry’ form of scouring that blasts the area with chemical powders. Like with paint strippers, this is effective for larger areas. Baking soda is the most commonly used chemical. You’ll need to rent a pot blaster and purchase some coarser soda. Sand blasters cannot handle this job, and household baking soda is too fine to be effective. You should be able to buy the right kind of soda from the same place where you got the pot blaster. Follow the directions carefully, and don’t forget to use a respirator or dust mask while working.