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Asphalt aggregates are easy to blend and customize. There are infinite combinations that <br>can be made to meet every special asphalt need. Many asphalt contractors run their own <br>asphalt-producing facilities in order to better accomplish those goals. The majority of <br>mixes will fall into one of these four groups.<br>
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DISTINCT ASPHALT TYPES Asphalt aggregates are simple to mix and tailor. There are countless possible mixtures that may be created to satisfy any unique asphalt need. To better meet those objectives, many asphalt contractors operate their own asphalt producing facilities. Most mixes will fit into one of these four categories.
Porous Asphalt Using porous asphalt for your next project can potentially provide financial benefits for your company. It is an EPA best practice and an environmentally beneficial paving solution. The term "porous" describes the asphalt's ability to manage runoff in an environmentally beneficial manner thanks to its small holes. The water descends into the ground below, where it goes through water purification procedures naturally.
Cold mix Asphalt Cold mix asphalt, which is primarily used for pothole repairs, remains flexible in cold temperatures and aids in water repulsion. This mixture can be created at practically any temperature because the manufacturing procedure is quite straightforward.
Hot mix asphalt The term "hot mix asphalt" (HMA) refers to asphalt mixtures heated to between 300- and 350-degrees Fahrenheit before being poured. The most popular type of asphalt is this one.
Stone matrix asphalt, open grade mixes, and dense-graded mixes are the three subcategories of HMA. According to the sizes of the aggregates utilized, dense-grade mixes are divided into two subcategories: fine-graded and coarse-graded. Comparatively to its coarse-graded counterpart, fine-graded dense-grade mixes contain a higher proportion of sand and small stones. High traffic roads, interstates, and highways can be paved using this mix.
Warm Mix Asphalt WMA is produced at temperatures ranging from 200 to 250 degrees Fahrenheit. WMA is produced with fewer fossil fuels than HMA, but more binding materials are needed to facilitate pouring and spreading at lower temperatures. In addition, WMA is cheaper to make than HMA.
Asphalt with a coarse grade In order to sustain the fine-graded dense mixes that are used for surface lifts on parking lots, highways, and driveways, coarse-graded asphalt is often utilized as a binder or base coarse.
ASPHALT DAMAGE TYPES With proper installation and preventative maintenance, most asphalt damage can be readily avoided. It is preferable to have any damage to your asphalt fixed as soon as possible because smaller issues are easier to address and less expensive.
Cracks Cracking an alligator Fatigue cracking, also known as alligator cracking, is frequently caused by overloading and may be a sign of a subbase problem or an issue with how thick the pavement is.
Abrasion Cracks Slippage fractures may form as a result of a weak asphalt mix or a poor connection between pavement layers. These cracks stand out from others because they resemble stretch marks.
Corner Cracks border cracks, as their name suggests, develop close to the pavement's outer border. The lack of support at the pavement's edge and dense vegetation both contribute to this form of damage.
Broken Blocks Block cracking is the process by which cracks develop that are continuous and generally rectangular in shape. Temperature changes cause the asphalt binder to compress and expand, which causes these cracks. If this happens, it was due to the mix being spread out too dry.
Continuous Cracking Poor longitudinal joint construction is the root cause of longitudinal cracking. The centerline of the pavement is parallel to these cracks.
longitudinal cracking Perpendicular to the centerline of a pavement, transverse cracking develops. They develop when an underlying layer has issues.
Potholes Potholes develop as a result of weather-related pavement damage and heavy driving. Due to the constant cycle of water freezing and melting, potholes generally form in the late winter or early spring. The pavement may become less durable if this water is in the asphalt base. Preventative maintenance can reduce or eliminate this type of damage. Areas of the pavement surface with lower elevations than the rest of the pavement are referred to as depressions. Pavement depressions can collect water, which could lead to further damage.
Failure at Base Poor drainage, too much weight concentrated in one location, a lack of support, or incorrect installation can all lead to base failure. You must first completely remove the surface layer in order to repair the subbase.
Stripping When the bond between the asphalt and the aggregate is compromised, it strips the surface and causes it to move. Cracks can appear fast as a result of this kind of damage.
