One of the most affordable and convenient methods for small-scale asphalt mending projects is to use a cold patch mix. Many property owners will tell you that this approach saves money, Asphalt Surfacing Contractors in Roodepoort and can reduce the amount of labor required for the job, making it a great solution for small holes in parking lots, walkways, streets, and driveways. However, the process of cold asphalt patching can be accelerated with the right application techniques, saving property owners some time too! Customers, clients, guests, and occupants can use the pavement in the same day!
Ease of Use
Pouring Your Mix
Large-Scale Pavement Repair
Asphalt Surfacing Contractors in Roodepoort ?
People usually see cleaning of asphalt driveways as hard, tiring, and time consuming. What makes it so is the way they do it. First, they know a lot of things should be done. They get confused with what to do first. Some think they can schedule their tasks in a daily manner. The truth is, repairing an asphalt driveway is just as easy as one, two, three, and four!
Pull out weeds. Wear rubber gloves to avoid getting cuts and injuries from pulling weeds. Hold the weeds on their base, and carefully pull out to get their roots. For tough weeds, use gripping tools such as pliers to pull out at least the part of the tough weeds that catch attention.
If it is hard to remove the roots of the weeds, carefully chip out surrounding of the root, when it is already around ½ to 1 inch wide, and 1/3 inch deep, use a filler to smoothen out the surface. Also, use a chipper to smoothen pointed surfaces. Loose stones should be picked up. Use a broom to remove pebbles.
Get rid of soil and spots. For tough stains like oil or gas stains, use of cleaner is advised. Water in high pressure can be used to wash away the detergent or cleaner residue. Make sure that the driveway is completely dry before moving to the next step.
Use fillers for cracks. For small cracks, use asphalt-emulsion fillers and smoothen the surface. For cracks that are at least 1 inch wide, use cold patches. Pebbles or stones can be used to fill in most of the opening first. Cement can be an option, but this may take quite a while to completely dry. Cover the patch with plywood and drive it over. You can leave the plywood there until the patch is completely dry.
Use sealer once the patch is dry. Let the sealer dry before driving over it. Get rid of excess sealers.For best results, make sure that kids will not dig out the patch or filler out as soon as you turn your back. Remove pointed parts or surfaces as these might eventually lead to injuries. After cleaning and repairing the driveway, make sure that the cars using it are also clean. As much as possible, if mud, or oil, or gas puddles up on the driveway, immediately clean them up.
Paving Contractors and Other Options
Paving contractors, road builders and even government agencies are turning to Roller Compacted Concrete as the pavement of choice in larger numbers as the acceptance of Roller Compacted Concrete, also known as RCC, grows across the United States. RCC offers unique qualities different from traditional concrete or asphalt that make the pavement an economical, fast-construction candidate for many applications previously reserved for asphalt or conventional concrete.
RCC has been traditionally been used for surfaces carrying heavy loads at low speeds because of its relative coarse texture, but in recent years RCC has been selected as the pavement of choice for a greater number of commercial and industrial applications. Cities such as Columbus Ohio have begun using Roller Compacted Concrete for residential streets, and Atlanta Georgia has used RCC for interstate shoulder construction. RCC is primarily used in the construction of industrial and commercial parking areas and low traffic road surfaces.
Typical applications of RCC include:
- Industrial access roads and parking areas
- Shipping yards and ports
- Truck and freight terminals and distribution centers
- Bulk commodity storage and compost areas
- Aircraft parking areas
- Urban, rural and park roadways
- Large commercial parking lots
- Temporary travel lanes
RCC is also being used in pavement systems for higher traffic speeds serving as base for traditional concrete or the lower lift in a two lift paving operation.
There are many benefits to the use of roller compacted concrete, but the main factor is the RCC can be constructed faster and cheaper than traditional concrete and multiple lift asphalt pavements. RCC can be constructed fast because it is typically placed with asphalt type paver equipped with a standard or high density screed, then compacted with rollers. Unlike conventional concrete the use of forms, dowels, reinforcing steel and vibration are not used. Additionally transverse joints are not required, however when project specifies they must be present the joints are spaced farther apart than conventional concrete.
The cost savings associated with RCC is attributed not only to the ease of construction, but the material also uses less Portland Cement the most expensive ingredient in conventional concrete. The specific savings associated with the use of roller compacted concrete is dependent on the complexity of the construction, size of the project and specified mix design.
Additional benefits of RCC - Roller Compacted Concrete
- Durability and resistance to chemical attack
- High freeze-thaw durability even without the use of air entrainment
- High strength capable of supporting heavy repetitive loads without failure
- Reduced cracking and shrinking
- Rigid surface eliminating rutting except in areas of heavy tire chain or studded tire use
- Resists abrasion even under heavy traffic loads and volume
- Light colored surface reduces the required lighting for parking and storage areas
- Light vehicles and cars can travel on RCC soon after completion
While the benefits of RCC are numerous it is important to understand there are also some limitations to the use of roller compacted concrete. For example the production of large quantities of RCC requires specialized equipment. While a transit mix truck can mix RCC the mixing time is significantly longer than conventional concrete and the amount of RCC than can be mixed in the truck is reduced because the dryness of the RCC mix. Also the surface of RCC may not be suitable for high speed traffic without diamond grinding.
Other limitations of RCC
- Adjacent slabs and multiple horizontal lifts must be place within an hour to ensure good bonding unless a cold joint is planned
- Pavement edges are more difficult to compact causing most specification to require 96% modified proctor density on cold joints
- Admixture usage on RCC may be higher than traditional concrete because of the dryness of the material
- RCC paving in hot weather requires extra attention to reduce the possibility of water loss and evaporation
When considering the versatility of RCC, its ease of application in comparison to conventional concrete and its durability as compared to asphalt it becomes clear the roller compacted concrete is a suitable paving substitute. When considering the rising cost of oil and petroleum based products such as asphalt it becomes clear that RCC is likely the paving material of the future.
Asphalt Surfacing Contractors Roodepoort