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How Does Asphalt Paving Work

No matter if you are a beginner or a seasoned construction worker, knowing the proper method of asphalt paving can make or break your ability to be successful in this industry. No matter if you are starting your own company, work for someone else, or if you simply want to learn the basics of asphalt paving, you should know that the method is often the most important part of the job. That said, the following is a short guide on the basics of asphalt construction.

The 7 Areas of Pavement Construction

If you are searching for the basics of pavement construction, they are as follows:

  1. Site prep: Before you are able to begin paving, you must make sure the site is properly prepared. This can involve the replacement of areas that are extremely damaged, milling, applying of a leveling course, and more. Every site is different. However, you need to make sure each site is properly prepared before you can begin construction.
  2. Demolition and removal of old material: Next, you must demolish and remove any materials and debris that may stand to adversely affect your paving efforts. This can provide the use of bobcats, forklifts, large dump trucks, forklifts, heavy machinery, and more. The purpose of this step is to remove the existing surface, so your site can be prepared to receive the new asphalt.
  3. Grading: The purpose of this step is to make sure the area is prepared for the appropriate water drainage necessary to sustain the new pavement over time. Using various tools and technology (most often, laser transit), this step is done to ensure the new pavement will not be greatly damaged by rain, water, and other watery elements.
  4. Base: One of the most important parts of creating new asphalt pavement is to ensure that the sub-base is laid properly. As we know, having a stable foundation is vital to being able to properly build anything. This is because the sub-base serves as a stable support for new pavement. Additionally, the sub-base is also important because it can help protect the new asphalt from the winter elements.
  5. Binder: Next, the binder is added. This consists of a larger aggregate and oil mixture, which makes it exceptionally strong and durable. In short, the binder is considered to be the strength behind all new asphalt surfaces.
  6. Final surface layer: Once you had added the binder, it is now time to install the top layer of your asphalt surface. This is a smaller aggregate mixed with sand and soil. The combination of the previous material mixed with this layer creates the smooth, shiny, jet black asphalt, which most are accustomed to.
  7. Joints/transitions: Lastly, since most surfaces are connected to things such as driveways, parking lots, and roadways, asphalt construction workers must take the time to smooth the transition spaces between the new and older surfaces. This not only makes everything safer, smoother, and sturdier, but it also makes everything appear more uniform and professional.

Overall, there are various methods of asphalt paving. No matter which method you choose, you must be sure that you are completing each step with the utmost precision and professionalism. Otherwise, the new asphalt will become akin to old asphalt and will thus, will need to be redone by a contractor or company that can.

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4 Ways Asphalt Paving in Colorado Helps the Community

Asphalt paving is a vital part of the transportation infrastructure for Colorado. This type of pavement provides a safe, cost-effective and environmental friendly for the roads, bridges and parking areas. It plays a significant role in the Colorado community. Asphalt pavements is a combination of aggregates of stone, gravel or sand that are bound together using some asphalt cement, which is derived from crude oil.

A large percentage (94%) of American roads and highways are paved with asphalt. Construction and maintenance of these smooth asphalt pavements is cost-effective, eco-friendly, and completely recyclable. They offer a safe and long-lasting surface for all types of transportation modes such as foot trails, bike trails, roads and airport runways.

Some benefits of asphalt paving are:

1. Quieter Roads

Noise pollution is everywhere. One of the best ways to lower road noise is to deal with the issue at its source. By using asphalt pavements on roadways, noise in residential areas and businesses can be lowered significantly. Stone Matrix Asphalt can reduce road noise by 3-5 dB(A). Using asphalt to combat highway noise is even more effective than noise barrier walls.

2. Recyclable

Asphalt pavement and processing facilities have very low carbon footprint. Asphalt Pavement Alliance says that production of asphalt pavements emits less greenhouse gases compared to other concrete pavements. Asphalt pavements are highly recycled in America. 100 million tonnes of this type of pavements are reclaimed every year, and out of that, more than 95 percent is recycled or reused, thus saving the taxpayers money and less use of landfills.

Sustainability is very important in today’s society. Asphalt can be used over and over again, like an infinite life cycle. This one of the biggest reasons why asphalt is popularly used across the country. Most companies strive to use environment friendly materials; the recyclable nature of asphalt makes it a great product.

3. Create new jobs

A career in the asphalt industry means job security. Road construction is always happening in Colorado; new roads are being installed while existing roads require regular maintenance to enhance safety. From repairing potholes, to filling cracks, asphalt contractors are always busy trying to keep the Colorado roads clear, smooth and safer for drivers. Furthermore, construction of new business buildings means a need for parking lots installation as well as regular maintenance, which means job security in this field is great.

The asphalt pavement industry offers: local jobs that are usually pay well and last for long, heightened community transport infrastructure, improved standards of living for the local people, eco-friendly products, and economic development.

4. Asphalt is great for winter roads

Winter can be hard on pavements; the freezing, thawing, deicers, plowing and the immense weight of plow trucks contribute more to the damaging effects of the cold weather. However, some pavements can hold up better than other during this season.

Extreme winter weather can ruin paved surfaces. Asphalt pavement is not only quick to install, but is resistant to harsh weather too. Asphalt roadways can be able to withstand cold temperatures during weather in both the low traffic and high traffic areas.

Hot-mix asphalt is the best when it comes to ensuring that the roadways are free of potholes and cracks during winter. It is asphalt pavement that is poured immediately after mixing aggregates of sand and stone with petroleum on to the road while the mixture is still hot. The hot-mix asphalt is strong and long-lasting, resistant to freezing and thawing, not affected by deicing agents, flexible, cost-effective, and needs little maintenance.

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The Cost of Drainage Issues on Your Pavement

Pavements are important to our contemporary lives by providing a smooth surface onto which we can transport goods and people as well as communicate with each other. Therefore, it is important to keep your pavements in optimal shape. This can be achieved through proper drainage. It is considered the element that ensures a long lived quality pavement. Problems can occur due to moisture accumulation in any structural layer of the pavement.
Long-term problems can not only be caused by standing water from heavy rain or sprinklers but also from underground water, which is harder to detect. Cracks in the pavement provide a way for the ground water to seep into the parking lot from below the surface. Some of the drainage issues affecting pavements include;

Winter Liability
During winter months, your pavement can quickly fill up with ice formed by seeping groundwater. The people walking here may be in danger of injury resulting in liabilities for you and your business. It may also make it difficult to control a vehicle as hydroplaning can occur at speeds as low as 35 MPH.

Water ponding
This refers to the collection of water at deteriorated shoulders or pavements. Ponding can be caused by a backup in the drainage system or an insufficient cross slope. The pavement’s original cross slope can be affected by both maintenance and traffic activities. It is especially hazardous at intersections a driver will require greater distances to stop. It is also dangerous in wheel paths or ruts. Wheel ruts are caused by traffic, especially heavy truck traffic, resulting in bituminous pavement movement to the wheel path sides. They are noticeable and run parallel to the pavement’s centerline.
Ponding can cause drivers, pedestrians, or bicyclists to divert paths, often encroaching the opposing lane. This endangers their lives as well as the lives of opposing motorists. Ponding contributes to the rutting of stabilized soil and deterioration of the pavement edge resulting in additional safety hazards. Vegetation growth and debris build-up can cause shoulder to scour and edge drops when the pavement edge traps water.

Shoving
Occurring frequently at stop locations such as intersections, this pavement condition results in the pavement having a series of ridges running across it. These ridges are hazardous when wet and dry as they can retain water and cause a vehicle’s wheels to bounce respectively. This bouncing decreases braking ability and reduces the pavement’s contact with the wheels.

Issues with Maintenance
Sealers may not work as they should due to the water and leak impact on asphalt. Wet asphalt does not enable the adhesion of sealant. The sealant will re-emulsify and be easily tracked into stores or cars. You can experience difficulties in maintenance due to poor location, trapped debris, flat grades causing clogging of pipes, and low-flow conditions lacking self-cleansing velocities.

Long Term Damage
Standing water may result in structural damage which is long-term and costly. Lack of adequate maintenance can also result in long-term, costly damage. The weakening of entire areas will happen first, then falls and large cracks will occur. Not short-term fixes will be available for potholes.

Drainage issues can be hard to detect, but they result in some costly mistakes. You should strive to prevent the accumulation of these small issues before they develop into major problems.

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What Temperature Should You Pour Concrete?

Concrete can be poured at any time when the temperatures have been above 40 F for over 72 hours. Moderate temperatures make the placement crew’s job easier as it sets up at a good pace, allowing ample time for edging, jointing, troweling and curing. In some instances, it can be placed when temperatures are lower but special additives are used, and heating may also be required. The other factors that can affect concrete pouring include wind speed, humidity levels, and the temperature of the sub-base which is the surface you will be pouring your concrete on.

Pouring your concrete in cold weather

In regards to concrete, cold weather is anything below 40ºF. Here are some tips for pouring concrete in cold weather;
  • Should the sub-base be frozen thaw it with heaters. Alternatively, you could pour the concrete on Styrofoam material as it helps sustain the temperature in the concrete.
  • Order for concrete products that are designed to cure promptly. Cold weather concrete is capable of resisting thawing and freezing effects as they have air entrained voids.
  • Ascertain that the concrete you order for has a low slump also known as a drier mix to minimize bleed water. You can use a vacuum or squeegees to rid the concrete of bleed water. This will help decrease the setting time.
  • You could use hot water to mix the concrete or use extra cement, that is, 100 lbs per cubic yard of concrete to create a heated reaction.
  • Once you have successfully poured your concrete, maintain its temperatures at 50ºF for a minimum of 3 days to a maximum of 7 days. This can be achieved through the use of heated enclosures or an insulating blanket.
  • If you are going to make use of a heated enclosure, ascertain that it is weatherproof and windproof.
  • Once you determine that the concrete is well set, you can remove the insulating blanket or the heated enclosure to allow the concrete to air dry.

Pouring your concrete in hot weather

  • Hot temperature in regards to concrete pouring is anything above 77ºF. Here are some tips for pouring concrete in hot weather;
  • Avoid pouring the concrete when it’s too hot to avoid temperature-related issues. You can do so either early in the morning or late in the evening.
  • You can erect shades along with wind barriers to protect the poured concrete from crusting or stiffening. Crusted concrete is highly susceptible to plastic shrinkage, crazing, and cracking.
  • Have a few people help you with the mixing process. Prolonged mixing only results in increased temperatures. You can add ice to the water mix to cool the temperature of the mixture.
  • You can dampen the sub-base to help minimize its temperature before pouring your concrete.
  • You can control the evaporation after pouring through the use of wet burlap, polyethylene sheets, waterproof paper, and windbreaks.
  • Should the weather be extremely hot, you will need to observe continuous moist curing for the next couple of days until the concrete is dry.

Finally, note that it is not advisable to place concrete when temperatures exceed 100 F, as it can flash set and there won’t be enough time for proper finishing.

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5 CAUSES OF COMMERCIAL PARKING LOT BREAKDOWNS

For far too long traffic got all the attention. Cars at rest seemed boring, and those in motion were exciting. Parking was hardly talked about. Today, parking has become a top concern among many stakeholders including commercial parking lot entrepreneurs, city planners, and company heads.

Space is limited, and parking lot demand is ever increasing. That explains why behemoth parking lots or “seas of asphalt parking lot” and mega garages are a hot potato. Despite the attention, commercial parking lots face numerous challenges including breakdowns. Why?

We’ve gathered five significant breakdown causes that every commercial parking business owner must know.

1.    Dirt, Debris, and Engine Oil

Regular cleaning of parking lots prevents damage. Often, leaking engines are conventional in most parking lots. Engine oil can cause severe damage to pavement surfaces. It creates ugly stains as it weakens the parking lot. There are different techniques to clean engine oil stains.

Experienced asphalt companies recommend cleaning parking lots at least twice a month. Remove all debris including dirt, leaves, and rocks from the pavement. Thorough cleaning enhances parking lot’s beauty and significantly increases its lifespan.

Debris and dust are known to prevent proper drainage leading to the occurrence of tiny water ponds on asphalt surfaces. With time, asphalt breaks down allowing water to seep into the parking lot’s sub base creating huge potholes and cracks.

2.    Cracks

All cracks more than a quarter an inch wide should be repaired. At times, weed growing in an asphalt parking lot extends these cracks. It’s advisable to promptly remove plants to prevent their roots from causing more damage by breaking down the pavement’s surface. Also, fill in the cracks to prevent vegetation from growing and water from percolating. Dry and solid asphalt surface is necessary.

Some cracks don’t require sealants. Generally, parking lots have various cracks including edge cracks, reflection, slippage and shrinkage cracks. It’s vital to repair them once they start occurring promptly. If you notice any cracks on the surface, contact certified asphalt companies to fix them.

3.    Low-Quality Sealant

At times, entrepreneurs choose to purchase cheap sealant to save money. They end up compromising on quality. A high-quality sealant adequately fills any crack on your parking lot. High quality sealant prevents water from seeping in or vegetation from growing and cover from breaking abruptly.

However, consider the size of the cracks before applying any sealant. Fill in deep and wide cracks. Adding a layer of sealant frequently helps extend your parking lot’s longevity. Assess the parking bay’s tear and wear rate to determine how often to seal.

4.    Poor Design

Be careful when hiring a contractor for paving in Denver project. An inexperienced contractor may create an erroneous design that cannot withstand wear and tear when vehicles drive on specific parts of the pavement. Change your parking arrangement and stripes to minimize wear. Furthermore, redesigning your parking lot can help increase productivity and space.

5.    Divot and Poor Drainage

Divot refers to a portion of asphalt surface that is dug out from the sub-base. Divot may occur as a result of poor drainage. Usually, heavy trucks and trailers remain at a single spot for long. They create water puddles which weaken the asphalt leading to the occurrence of potholes. It’s crucial to have sufficient drainage to prolong your parking lot.

Failure to repair damaged parking lot may significantly reduce your revenue. Perform routine maintenance to fix minor issues to avoid costly repairs. Also, check the weight of vehicles using asphalt surfaces. Huge tracks are known to destroy ordinary paving in Denver. Running a parking lot business? Share your thoughts and experiences with us.