Factors That Affect the Durability and Longevity of Asphalt Paving

Asphalt is a versatile material used for various purposes, including roads, driveways, and parking lots. Its durability and longevity depend on temperature fluctuations and traffic volume.

A good paving contractor like Paving Companies Summerville SC will follow proper drainage protocols to ensure that water drains away from the surface. Look for smooth transitions between the pavement and other surfaces or curbs. This will improve weight transfer and indicate a polished job.

Cost is always important when choosing a paving material for your home or business. Asphalt paving is less expensive than concrete and can be installed much faster. It also requires less maintenance than other paving materials. The price of asphalt varies by location and square footage and may be more expensive for projects in difficult-to-reach areas. Additionally, there are a variety of other factors that can impact the cost of a paving job.

Before laying down asphalt, a contractor should do some basic prep work. This includes grading and compacting the sub-base layer. This should help prevent water from sitting on the finished paving surface. The contractor should also use a proof roller to detect soft areas that may not be strong enough for load bearing. The contractor should then replace these areas with stronger aggregate materials.

Asphalt is more affordable than other paving materials, including brick and stone pavers. It is also more weather-resistant and less likely to develop potholes than concrete, making it an excellent choice for cold climates. In addition, asphalt can be colored to create a more unique look. It is also more environmentally friendly than concrete, as it melts ice quicker and can be used for road surfaces that need to be porous to allow water to pass through them.

Another advantage of asphalt is its constructability. This means it is easier to lay and compact than other pavement materials, speeding up construction and reducing labor costs. This feature makes it the preferred paving material for design-build contracting.

While the initial investment in asphalt paving can be high, it is a smart and long-term investment that will save you money in the long run. In addition, it is a recyclable material that can be reused over time, saving energy and cutting down on landfill waste. The asphalt industry has been working hard to find ways to cut the cost of constructing asphalt, including using reclaimed asphalt pavement (RAP), which contains some of the same ingredients as new asphalt but is cheaper.

Asphalt is a durable material that can last for years if properly maintained. However, it will deteriorate over time due to heavy traffic, weather changes, and other factors. This can result in cracking and other problems that affect the durability of the pavement. These issues can be costly and should be addressed immediately to prevent further damage. This can be done through various methods, including repairing cracks and repainting the surface. Depending on the severity of the problem, a complete asphalt replacement may be necessary.

Some factors determine the durability of asphalt paving, including rutting, temperature fatigue, and dynamic modulus. Pavement properties, climatic conditions, mix design, and paving procedures influence these factors. In addition to these factors, it is important to consider the long-term performance of the asphalt mixture to predict its lifetime. This can be done using a series of indoor and full-scale accelerated pavement testing.

One of the most important factors in determining the durability of asphalt paving is the strength of the base. The base must be dense enough to support the asphalt layer and flexible sufficient to avoid wheeled vehicle damage. It should also be porous to allow water to drain from the asphalt.

Another important factor is the ability of the asphalt to withstand repeated impacts. This is especially true for high-speed roadways. For this reason, many asphalt paving projects are designed to provide high durability. This can be achieved by adding special additives to the asphalt mix. These additives can help reduce the rutting of the asphalt and increase its longevity.

Asphalt is a popular choice for tennis and basketball courts because of its smooth surface, which allows for better ball bounce and player movement. It is also used as a surfacing material for outdoor running tracks, playgrounds, and other recreational areas.

While asphalt is a durable material, paving it can be expensive. Several factors can add to the overall cost, including equipment rentals, cleaning, and transportation expenses. Using the right cleaning agents can minimize these costs, but they can still be a significant portion of the total project cost.

Asphalt is a major contributor to atmospheric emissions, global warming, and other environmental problems. However, the emissions generated by asphalt processing can be minimized using various best practices. These include reducing the fuel used in transporting materials, utilizing on-site recycling, limiting idling time for construction equipment, and using alternative fuels. The most important factor in the sustainability of asphalt pavements is controlling hazardous chemicals released into the air as the mix is heated. These chemicals can contaminate water bodies, endanger aquatic life, reduce water quality, and degrade views.

The environmental impact of asphalt paving can be mitigated by incorporating warm mix asphalts and pervious asphalt pavements. These technologies reduce emissions and energy consumption by lowering the temperature of the asphalt mix. Moreover, these methods do not compromise the mechanical properties of asphalt. Research on these types of asphalts has shown that they are comparable in stiffness to hot mixes and have good fatigue resistance, Marshall immersion, rutting, and aging characteristics.

In addition, the use of recycled aggregates in warm mix asphalts helps reduce the need for fresh, virgin material. These products also contain recycled bitumen, which further reduces the impact on the environment. This method is also a great way to increase the lifespan of existing roads without wasting valuable resources.

Proper stormwater management is another key factor in minimizing the environmental impact of asphalt paving. This can be achieved by implementing drainage solutions, such as bioswales and retention ponds. In addition, it is important to avoid paving over sensitive areas, such as wetlands. These areas are essential habitats for many species and should be protected.

In addition, minimizing the number of road crossings during the paving process is a good idea. This will reduce the amount of traffic congestion and air pollution. It will also reduce the need for repaving, saving money and energy. Additionally, a thorough site inspection before paving can help identify any potential drainage and soil stability issues. These problems can cause costly delays and increase the project’s overall cost.

When working with asphalt, taking proper precautions to prevent injuries is important. It’s best to wear protective clothing, such as long pants and a T-shirt, and eye protection. Wear a face shield or safety glasses covering your whole face for maximum safety. Respiratory protection is also critical, especially in confined spaces. The best option is a respirator that’s been properly fitted and tested for your job.

Workers should be aware of any overhead obstructions, such as electrical wires, when paving. In addition, they should be mindful of underground utilities. The location of any utility lines should be marked with appropriate markings. Workers should also be careful when getting on and off equipment. They should be sure to use handholds/footholds that are solid and stable. Lastly, it’s essential that they read the Material Safety Data Sheet (MSDS) for the product they’re working with and follow any PPE instructions.

The mixing and testing processes used in asphalt paving can create hazardous fumes. These fumes contain many chemicals that are known carcinogens and can lead to lung problems. Exposure to these fumes can cause various symptoms, including headache, fatigue, skin rash, cough, and irritation of the eyes, nose, and throat.

During the mixing process, additives may be introduced to improve the durability of the asphalt mixture. Some of these additives are chemical compounds that increase the flexibility and durability of the asphalt. Samples are taken throughout the mixing process to ensure the mix meets specifications and quality standards. Special paving machines or trucks transport The asphalt to the construction site.

Asphalt is heated at high temperatures during mixing to achieve the desired properties. This process releases several hazardous substances, including benzo-a pyrene and polycyclic aromatic hydrocarbons, which can cause respiratory illnesses and cancer.

NIOSH research shows that engineering controls for large paving pavers can significantly reduce worker exposure to hot asphalt fumes. However, it’s not feasible to retrofit existing paving machinery with these technologies. As a result, NIOSH is encouraging paver manufacturers to develop generic kits for reducing worker exposures without creating tripping hazards from ductwork or placing undue burdens on the paver’s hydraulic or electrical systems.

The Benefits of Concrete Leveling

Concrete Leveling Cincinnati slabs that are uneven or have cracks can be unsightly, but they’re also a safety hazard for pedestrians and drivers. Rather than replacing the entire slab, concrete leveling is a quicker and less disruptive repair option.

The process involves drilling holes into the sunken concrete and pumping a polyurethane foam mixture or mud into the voids to lift it back to its original position. This is known as mudjacking or slabjacking.

Concrete leveling, or mudjacking, is an effective repair method that can save property owners time and money. It is a non-invasive solution that doesn’t require demolition or heavy machinery and can be completed in less than half the time of pouring a new slab. This means that you can return to using your concrete surface almost immediately after the repair, and it won’t cause any disruptions to your yard. Moreover, mudjacking is less costly than concrete replacement because it addresses the root of the problem instead of simply replacing it.

Concrete sinking is often caused by soil erosion underneath a slab. As the soil erodes, it creates voids that can lift the concrete. Concrete leveling fills these voids and lifts the concrete back to its original position, eliminating any sinking that has occurred over time. It is much more affordable than concrete replacement, saving homeowners on demolition, labor, and material costs.

Concrete leveling costs depend on various factors, including project type and location. For example, the price of a concrete leveling job will vary depending on whether the slab in question is located in a difficult-to-reach area or requires extra aesthetic considerations. The type of concrete in question will also impact the final price. For example, a garage floor or foundation is typically more expensive to raise than a patio or driveway.

When looking for a concrete leveling company, consider choosing one that uses polylevel instead of mud. This alternative approach is more eco-friendly and cost-effective than standard mudjacking, which uses a mixture of cement, water, and clay. In addition, the poly level is more resistant to hydration than classic mud jacking, making it an even better choice for your home’s concrete surfaces.

Uneven concrete can lead to dangerous trip and fall accidents, so it’s important to have your concrete leveled as soon as possible. In addition to improving safety, it can help maintain your home’s value and prevent future damage. Call a local concrete leveling service for a free quote if you notice signs of uneven concrete, such as hairline cracks in your floors or sunken sidewalks.

Aside from the fact that uneven concrete is unsightly, it can also pose a safety risk for people who walk on or drive over it. Correcting the issue as quickly and cost-effectively as possible is essential. Fortunately, today’s modern concrete leveling technology allows you to repair sunken or uneven concrete slabs without replacing them entirely.

Concrete leveling is a process that involves drilling small holes into the sunken concrete and injecting a specialized compound to lift and stabilize it. It is less disruptive than concrete replacement and can usually be completed within hours. It is also less expensive than pouring new concrete, making it a great option for residential and commercial properties.

The injected compound used in concrete leveling is made from polyurethane foam. When pumped through the holes in the concrete, it expands and fills any voids in the soil beneath the sinking slab. This process lifts the concrete back to its original position, restoring the surface and eliminating any safety hazards. The holes are then filled and sealed, leaving you with a solid and sturdy slab.

Unlike other concrete leveling methods, such as mudjacking, polyurethane foam concrete leveling addresses the root cause of the problem. Mudjacking only lifts the concrete but does nothing to strengthen or improve the soil underneath. In contrast, the polyurethane foam injected into your concrete stabilizes the soil and improves drainage. It can even help to reduce the amount of water that collects around your home or business, reducing the chance of foundation damage and flooding.

While other concrete leveling techniques erode over time, polyurethane foam lasts a lifetime. It is also weather-resistant, making it a great choice for all environments. Concrete leveling is a reliable solution for fixing an uneven concrete slab. Still, it should be considered on a case-by-case basis and weighed against the alternative of concrete replacement.

Replacing an entire slab of concrete is costly, disruptive, and time-consuming. Concrete leveling is a much more affordable and convenient solution for fixing an uneven concrete slab.

Uneven concrete slabs can be unsightly and pose safety hazards for people walking on them. Leveling sunken or settled concrete can be done quickly and cost-effectively than tearing up and replacing it, making this a good option for homeowners looking to improve the look of their property while addressing a potential safety issue.

Uneven concrete surfaces are a common problem from soil erosion or other environmental factors. They can cause trips and falls and can interfere with the proper functioning of structures like driveways and walkways. Concrete leveling involves injecting a material beneath the surface to lift it back into its original position. This can be a cost-effective alternative to replacement, especially if the damaged concrete is not structurally compromised.

There are a few different methods of concrete leveling, each with advantages and disadvantages. Mudjacking is a traditional method that combines cement, water, and soil to “jack” up the concrete. This can be more costly than other options and may require core drilling to create holes in the concrete for injection.

On the other hand, polyurethane foam leveling uses a lightweight and highly durable material injected under the concrete to fill any voids and raise it back into its original position. This is much faster and less disruptive than mudjacking and can be completed in just a few hours.

Another benefit of polyurethane concrete leveling is that it can also be used to repair areas with cracks in the concrete. This can be a more cost-effective solution than using rebar to reinforce the area, and it can provide an attractive finish to the concrete.

Concrete leveling can be an affordable and effective option if you have a hollow or uneven concrete slab that needs to be repaired. Contact a professional concrete leveling company to discuss your alternatives and to get a quote. A reputable concrete leveling company will use high-quality materials and cutting-edge equipment to ensure a long-lasting and durable result. They will also be able to answer any questions about the process.

Concrete leveling is an effective and efficient way to fix sunken or uneven concrete. In addition to being unattractive, rough concrete can create dangerous trip and fall hazards for pedestrians and vehicles. This is why finding a professional concrete leveler you can trust is important. Taking the time to ask the right questions during your estimate, researching companies, and reading reviews will help you feel confident in your decision.

One of the most common ways to lift concrete is through mudjacking. This process involves drilling small holes into the sunken concrete and pumping a heavy cement slurry underneath the slab. The slurry fills any voids that have formed beneath the concrete, and this pressure is enough to raise it.

Mudjacking is a relatively inexpensive concrete leveling method, but it has drawbacks. Because the slurry is so heavy, it could sink the lifted concrete back down over time. This can be a problem because it will require another costly repair. In contrast, concrete lifting foam is lightweight and won’t cause the lifted slab to sink again.

Another downside of mudjacking is that it could be more environmentally friendly. Because the slurry contains so much heavy dirt, it can pollute nearby water sources. This is especially problematic because it can contaminate groundwater, which affects local ecosystems. Concrete leveling, on the other hand, is an environmentally friendly option because it uses existing concrete to raise it instead of digging up and replacing it.

Whether you have an uneven driveway, walkway, or patio, hiring a professional concrete leveler who can repair it effectively is critical. This will save you money in the long run and protect your property from structural damage. Plus, it can help prevent dangerous trips and fall accidents that can lead to serious injuries. And, if you’re planning to sell your home, level concrete can als

Enjoy Greater Success In Affiliate Marketing With These Strategies

Some affiliate marketers will ultimately fall victim to companies who promise proven methods upon sign-up. Other marketers will fail due to a lack of understanding. We could keep going on for a year here; there are just that many ways to fail. If you want to know how you can succeed, check out this article.

When creating links as part of an affiliate marketing program, pay attention to your under performing links and articles. If after about 200 clicks you have not seen a single sale, remove that link. That link is just sitting there costing you money and will not provide a return on your investment.

Use affiliate ads as a service to your readers and make sure that it complements your content. Provide it as a way to send them in a right direction based on something you have said or recommended. This will make it seem less out of place, and more like a service you are providing.

Most importantly, your website content must be up to par. Your website will never get quality traffic if you are not targeting the consumer with information that is relevant and informative. An affiliate program will never work if you do not get good traffic directed through your site at a constant pace.

Affiliate marketing is a great tool for bloggers all over the world. It enables them to generate an income buy linking to business sites that sell what they are blogging about. If you have a great site with enough traffic, an affiliate link can be just what you need to pay for your domain or even some extra pocket money.

The tips you’ve just read here talk about a few tips and tactics you can try in order to increase your odds of success. Any market is going to be fickle, and the highly competitive field of affiliate marketing needs a new dictionary to properly explain how it can sometimes act. Make sure you’re always putting yourself in the best position by using the tips you’ve read here.

You can also visit our other websites and post your article.

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Facts About Residential Concrete Driveways

Concrete Contractors Colorado Springs add value to homes and are highly durable. However, they can require substantial investment, so homeowners should carefully consider their options.

For example, homeowners should consult with a concrete contractor to determine the best thickness for their driveway. Thickness is a major factor in a concrete driveway’s structural capacity.

residential concrete driveway

The cost of a concrete driveway can vary depending on the size, thickness, and finish you choose. A thicker slab is usually more expensive than a thinner one, but it will last longer and be stronger. A standard residential concrete driveway should be at least 4 inches thick. A commercial or industrial concrete driveway may be up to 6 inches wide. The thickness is determined by how much weight the driveway will need to support, such as a vehicle or trailer.

Poured concrete is the most popular option for a residential driveway, typically costing between $3 and $5 per square foot. This includes the price of the concrete itself, delivery fees, and installation costs. Labor costs account for the rest of the total, as workers set up and break down the forms, prepare the site, install rebar and other add-ons, lay the concrete, smooth it out, cure it, and remove the forms.

Before the concrete is poured, a sub-base must be laid down. This consists of gravel and sand, and it can increase the overall project cost by a few dollars per square foot. A typical concrete contractor will charge between $6 and $12 per hour for on-site work.

Concrete can be colored before it is poured to create different textures and looks. A basic color stain is inexpensive, but more intricate patterns and multiple colors will cost more. Most contractors will also add a broom finish to the concrete, which helps improve traction and can be very attractive.

A textured finish typically costs between $8 and $12 per square foot. The broom finish is not as smooth as a standard paved surface and can provide good traction, even in wet conditions. Some contractors will use a salt finish, which is textured with rock salt before the concrete is poured and gives the surface an uneven texture.

Many homeowners also choose to add an apron connecting the driveway to the road. This can add $3 to $10 per square foot to the project cost and the cost of building a drainage system or stormwater drains if necessary.

Concrete is a highly durable material that can withstand heavy traffic and weather conditions for up to 50 years. It can also withstand heavier loads than asphalt, making it an ideal choice for driveways accommodating trucks and RVs. However, the longevity of a concrete driveway depends on its thickness, construction method, and maintenance.

In general, a concrete driveway should be at least 4 inches thick. This is essential for providing sufficient strength and durability. Concrete poured too thin will not be strong enough to withstand the weight of heavy vehicles and may crack or crumble easily. To increase the durability of your residential concrete driveway, have your contractor mix in some rebar, an iron mesh that strengthens the structure.

The best residential contractors use ready-mix concrete, which is more cost-effective than mixing and pouring the concrete from scratch. This type of concrete is made with aggregates such as gravel, stone, and sand, which make up about 75% of the finished product. It’s also important to choose a concrete driveway contractor that uses quality cement, as this will impact the strength and longevity of your driveway.

A professional concrete contractor will consider many factors when constructing a concrete driveway, including the function and layout of your property. They will carefully examine the existing terrain, including the subgrade, and select a concrete mix to provide the desired strength and durability for your driveway. They will also ensure that the concrete is placed in the correct location and slope, which is crucial for drainage.

Residential concrete contractors can also offer various customization options to enhance the look and feel of your driveway. For example, your concrete driveway can be stained to look like natural stone, brick, or slate. You can even have it etched to display your family crest or a message. These customization options can add visual appeal to your home and complement various landscaping styles and color schemes. However, these upgrades are typically more expensive than standard concrete.

Concrete driveways offer a variety of styling options. They can be stained, dyed, or stamped with a pattern to create a unique look for your home. They are also available in a wide range of colors. Concrete driveways poured and colored simultaneously can be textured to mimic baked brick or natural stone. This gives your home an exotic, old-world style without the hassle of laying individual stones and ensuring they fit properly.

Modern concrete driveways often feature a simple color palette, with white or gray tones that complement the surrounding landscape and house. The contemporary aesthetic also emphasizes texture and pattern. Some homeowners choose a broom finish, while others use a swirled finish or seamless texture skins to add interest and contrast to the plain concrete surface.

Aggregate-stamped concrete is another popular option for residential concrete driveways. This type of concrete uses regular concrete mixed with aggregate, which can be colored or natural-looking gravel. The concrete slabs are then stamped with a pattern to imitate the look of stone or pavers. Aggregate-stamped concrete offers a textured, nuanced look that is not as smooth as polished concrete.

Consider a broom finish if you want to keep your driveway as simple as possible. This type of finish uses a brush to create a more subtle texture than swirled or swirled-and-smooth-finish concrete. It is a good choice for homes with a minimalist design aesthetic and can be easily combined with a gravel or grass driveway.

A textured concrete surface can be stamped or troweled by hand to create a specific texture. This can be done using wood floats for coarse textures; aluminum floats for medium textures, or steel trowels for a smooth finish. Adding a textured finish to your concrete driveway can make it more visually appealing and improve its durability.

A poured-in-place concrete driveway is more durable than an asphalt one because it has a thicker base that prevents cracking. However, concrete can still crack due to freezing and thawing cycles. For this reason, a poured-in-place concrete driveway should be reinforced to help prevent cracking.

Concrete is an extremely versatile material that can be used for various projects, including residential driveways. Its strength and durability make it an excellent choice for a driveway, which must be able to support the weight of vehicles. The process of installing a concrete driveway requires careful planning and preparation. Professional concrete contractors can help you determine the right size and shape for your driveway and ensure it is poured correctly. They can also advise on maintaining your concrete driveway and keeping it looking new.

The first step is to prepare the site for pouring the concrete. This involves clearing the area and removing any debris or vegetation that could interfere with the final surface. The ground must be level and compacted to ensure a strong base for the concrete. The soil should have a 1-2% slope away from structures and buildings to ensure proper drainage. The contractor can use a vibratory plate compactor or tamper to achieve this.

Once the ground is ready, the forms are set up to hold the concrete. The form boards must be straight and sturdy so they do not fall apart during the pouring process. Once the form is in place, the concrete is poured and smoothed. It is important to check the concrete frequently to ensure it is evenly spread and consistent. Removing any soft spots from the concrete as soon as they appear is also crucial.

After the concrete is poured, it must be allowed to set slightly before finishing. This can take 1-2 hours, depending on weather conditions and the concrete mix used. Then, the contractor can use a magnesium hand float to create a smooth finish and float out bull float lines.

A concrete driveway is a great way to enhance the look of your home and increase its value. It is easy to clean and maintain and lasts for years. It is also a good investment, which will help you recover the initial cost when selling your house.

Different Asphalt Concrete Coating Materials

Concrete Coating

Asphalt is commonly used in road construction and resurfacing projects. It provides a smooth surface that helps to reduce vehicle damage and tire wear.

Scrap tire rubber can be incorporated into asphalt paving mixes in wet and dry processes. These rubber-modified binders are called crumb rubber modifiers. The cationic emulsified asphalt presents the best performance in terms of high temperature rutting resistance, low-temperature cracking resistance and water stability.

1. Water-Based Coating

Unlike their solvent-based counterparts, which contain chemicals that evaporate into what is known as Volatile Organic Compounds (VOC), water-based coatings use water as the liquefying agent. This means they have far fewer health and environmental concerns. In fact, with the growing need to reduce pollution and embrace sustainable manufacturing practices, this type of coating has become the norm.

Water-based sealants are a great choice for asphalt concrete because they provide many of the same benefits as their oil-based counterparts. These include preventing cracks, filling voids and protecting your pavement from oxidation. They also protect the surface of your driveway from oil spills, grease and other chemical contaminants. The difference is that you can clean up a water-based coating with water, as opposed to using spirits or acetone which are often needed to clean a solvent-based paint.

The majority of blacktop sealants are water-based, including refined coal tar, asphalt emulsion and latex-modified asphalt emulsion. These sealants are created by suspending the binder in either water or an emulsifier, which is a substance that allows one liquid to remain suspended in another without mixing them together.

This type of coating is becoming more popular due to its environmental concerns and the ease of application. Water-based coatings have the advantage of drying much faster than their solvent-based counterparts, and they emit far less odor. They are also non-toxic, making them safer for the environment and workers.

Another reason that this particular type of sealant is becoming more popular is because it helps with the urban heat island effect. The asphalt used to pave our streets traps heat during the day and releases it at night, which can lead to an increase in air temperature. A water-based treatment called cool pavement reflects more sunlight and absorbs less, which can help reduce this phenomenon.

2. Oil-Based Coating

Oil-based sealcoats contain petroleum distillates and other organic solvents like ketones, esters, glycol ethers, alcohols, and resins. They provide a tough, flexible coating that prevents moisture and oils from penetrating into asphalt concrete and damaging it. These coatings are also highly resistant to UV rays, chemicals, and abrasion, making them the ideal choice for exterior asphalt surfaces that receive more abuse than those found in the interior of buildings.

These types of sealants typically have a high sheen that provides an attractive appearance to driveways and parking lots. They dry much quicker than water-based products, making them a popular option for homeowners who want to protect their investment. However, they do take longer to clean up and often have a strong odor. They are also less durable than water-based polymer sealers, so they will not last as long.

This type of asphalt pavement sealer is commonly used in industrial settings because it is resistant to abrasion and chemical spills. It also contains additives to help resist the penetration of oil and gasoline, which helps protect the surface from damage that can be caused by leaks and spills.

If you choose to use an oil-based sealant, you should make sure that the weather is dry before you apply it. Barricade the area to avoid traffic while you apply the product, and be sure to power wash your driveway or parking lot prior to sealing. You should also oil spot prime any areas that have oil stains and patch deep cracks before applying the seal coat.

Once applied, this type of pavement sealant is extremely durable and can last up to five years. It is recommended that it be reapplied every two to three years for normal usage, or every year for heavy traffic. Seal coating also makes the pavement more flexible, which helps prevent it from cracking and crumbling. For best results, the sealant should be reapplied once it is fully cured (after about three weeks) to achieve maximum longevity. If you need assistance deciding on the right asphalt sealant for your property, please do not hesitate to contact Hallman Asphalt. We are committed to excellence and can help you select the perfect product for your specific needs.

3. Rubber-Based Coating

Adding recycled rubber to asphalt concrete improves the material’s durability and resistance to rutting, cracking, and aging. It also decreases the energy required to make and maintain asphalt roads. However, using tire rubber for asphalt pavement requires significant investment and extensive processing of the raw material. Scientists have been working to hone this technology to reduce energy use and harmful emissions while improving pavement life span and strength. They have experimented with adjusting processing temperatures and combining various salvaged ingredients, such as recycled cooking oil, plastic, and cigarette butts.

Crumb rubber is added to hot-mix asphalt mixtures in two ways: either as a component of the aggregates or as a modifier of the binder. Including this material as a part of the aggregates is called the dry process; it was first developed in the 1960s. The rubber is ground and vulcanized, then incorporated into the aggregates with the help of a binding agent. The result is an asphalt-rubber composite, often referred to as RUMAC.

Although the abrasion properties of a rubber-modified mixture are improved, its tensile strength and stiffness remain lower than traditional blends with high percentages of SBS or WMA. Its ductility is lower, as well. It is not readily able to flow into and seal cracks in the pavement, and its sprayability when applying membranes by conventional means is poor.

A newer technology uses rubberized bitumen as a binder. The rubber is reprocessed with the addition of a thermal decomposer to extract the residual oils and to separate a soluble polymer from the crumbs. This product is a petroleum-free binder, and it is marketed as warm mix asphalt.

The process of blending and spraying is simpler than with the dry process. The resulting mixture is less viscous, and it can be applied at a lower temperature without losing workability. This product is often called an asphalt-rubber mixture or a warm mix, and it can be used for overlays or as a crack filler.

Another type of product uses chlorinated rubber paint. This product is a low-cost, environmentally friendly alternative to the traditional solvent-based products. It is a durable, resilient coating that is ideal for a wide variety of applications and surfaces, including bridges, driveways, and parking lots. It is also a good choice for use in the construction of stress-absorbing membranes or as a chip-seal layer over existing pavement.

4. Chemical Coating

Asphalt pavements are very durable but they can become damaged by the sun’s UV rays, water, and chemicals that come from oil or gasoline. Sealcoating is the process of adding a thin liquid layer to your asphalt driveway or parking lot that will help protect it from these elements and make it look like new again.

There are several types of chemical coatings but the most popular is a coal-tar or asphalt emulsion. It is a stable dispersion of refined tar or asphalt, sand and fillers with a heavy paint consistency. The emulsions can be fortified with rubbers, specialty chemicals and additives to increase their resistance to environmental factors and to improve rutting, shovel and abrasion resistance. They are generally odorless and easy to apply.

These products are often used for off-street, high traffic areas like airport aprons and runways, service stations, garages, home driveways, etc. They are also used to protect pavement that carries very low traffic. Because these pavements don’t have the advantage of continuous rolling traffic that kneads and re-adhesises the oxidized surface layers, over time they can become exposed to weather and chemical elements which eventually degrade the binding cement. Once the binder is exhausted aggregates start unraveling and minor surface cracks develop that widen and deepen over time.

A well-designed, properly applied and maintained chemical conversion coating will provide a strong, long-lasting barrier that is tough enough to withstand the weight of vehicular and pedestrian traffic as well as all weather conditions. In addition, this type of coating provides superior skid and slip resistance making it very safe for pedestrians and vehicles.

Prior to the application of any sealcoating it is essential that the pavement be cleaned, blown off and primed with asphalt crack sealer. The coating can be applied at a thickness of several to over 150 mils. A good quality sealcoating should have a high tensile strength as measured by the pipe cap pull off test and a high shear resistance as measured with a needle shear tester. It should also have excellent adhesion and be free of pinholes, holidays and crazing cracks.