BEFORE
AFTER
Maintenance
Any surface that is exposed to Sunlight, Oxygen, UV light and abrasion, will break down. The process is on a curve that starts out slow and speeds up as more damage occurs.
By means of scheduled maintenance, we are able to slow down the degradation process. That is why we seal the cracks and repair potholes, we strip out worn tar and replace it with new asphalt with the best mix-design. By preventing water form entering into your surface base, we effectively stop further damage. Our maintenance plan includes our Rejuvenator Technology that penetrates and Rejuvenates old asphalt and seals the surface with our Hydrocarbon enriched bitumen formula. Read more on the Rejuvenator page.
Effective surface maintenance be it Paving or Asphalt (Tar) required proven procedures that has been tested and replicated based on province. Correct procedure means that we even look at magnetic charge of material and products to ensure the perfect chemical bonding and subsequent adhesion, compaction or density for overlays, new bases or slurry treatments.
Pothole Repair
Potholes are a problem. There are 2 reasons they exist.
1. Inadequate base compaction when the surface was created.
2. Water gets to the base after surface creation and sags.
We know that Compaction is key.
We can prevent future decay by introducing our Rejuvenator spray system to your asphalt, Save your money and your surface with TARCO Rejuvenator.
A Pothole is a wet mess and needs to be treated as such.
We remove all the contaminated material and replace it with fresh G1 base material. After the base material is compacted and settled to the correct soil moisture content, a generous layer of asphalt is compacted to be flush with the existing asphalt surface.
A sealer is applied to the cut edge to make sure the patch is sealed.
Phothole repairs in Pretoria and Johannesburg (JHB)
Tar Slurry
Demo of Slurry sealer. With Green and Red colouring.
All slurries are equal, but some slurries are created more equal than others. Our Resin Modified Bitumen (Tar) Slurry is exactly that.
Capable of taking light traffic within 2 hours of slurry application means that access roads and service roads can be completed during early morning and opened for traffic within hours.
A durable fiber based Tar slurry that can be applied to surfaces with excessive aggregate loss and damage and secure a few more years of service. When it comes to preventative maintenance and cost effective surfacing treatments, our Slurry seal system will extend your budget and also make your surface appear new.
A Tar slurry can be applied by hand for areas up to 2000m2 and by truck slurry spreader for larger projects.
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Crack repair using hot-pour method.
>80 of road damage is due to water entering the joint between the concrete kerb and the road surface. Most of the water flows here, enters the joint and migrates under the road surface.
Crack and joint sealing
The Importance of Crack Sealing for Pavement Longevity
Cracks appear in various forms, and every pavement is susceptible to damage. If not addressed promptly, these cracks can escalate into serious issues, leading to potholes and even sub-base failures.
Research from the Pavement Preservation & Recycling Alliance reveals that 75% of untreated cracks turn into potholes within three years. In contrast, only 1% of sealed cracks face the same fate, highlighting the critical role of crack sealing in maintaining pavement integrity. Effective crack sealing not only reduces vehicle damage but also enhances driver safety and lowers overall road maintenance costs.
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What is Crack Sealing?
Crack sealing involves applying a specialized adhesive sealant to the cracks in your pavement. This process prevents moisture and debris from infiltrating the surface, offering a cost-effective solution that can extend the life of your pavement by three to five years. One of the greatest advantages is that a crack-sealed road can be opened to traffic almost immediately when a de-tacking agent is used.
When to Seal Road Surface Cracks
Crack sealing should take place before significant pavement distress occurs. It is effective for cracks wider than 1mm, including types such as block, edge, longitudinal, reflective, thermal, and transverse cracks. However, extensive alligator cracking, potholes, or cracks wider than 1½ inches typically require more comprehensive repair solutions.
The Crack Sealing Process
Properly executed crack sealing is essential for long-lasting results. Poorly applied sealant is not only unsightly but can also lead to costly repairs, diminishing road safety.
Optimal Timing: The best times for crack sealing are spring and fall, when cracks are neither fully open (as in winter) nor completely closed (as in summer). For optimal adhesion, manufacturers recommend sealing when pavement temperatures are at least 20deg C.
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Surface Preparation: Adequate surface preparation is crucial. Depending on crack density, routing may be necessary to achieve cleaner edges and improve sealant adhesion. A crack density of less than 20% generally warrants routing to accommodate thermal movements.Cleaning and Drying CracksBefore sealing, it's vital to thoroughly clean the cracks to remove debris, dirt, and moisture. Using compressed air at high pressure is effective, followed by applying hot air to ensure cracks are completely dry.Selecting the Right SealantChoosing the right sealant is critical and should be based on factors like climate, pavement condition, and expected movement. Cooler climates require more flexible materials than those used in warmer areas. Always adhere to manufacturer specifications regarding temperature during heating and application.Best Practices for ApplicationUtilizing the correct filling methods, such as flush fill or overband techniques, is essential. The goal is to fill cracks from the bottom up, ensuring a thorough and durable seal. To prevent sagging, consider partially filling the cracks and allowing them to cool before completing the fill.ConclusionCrack sealing is a vital part of pavement preservation that can save you money and extend the life of your roads. With proper techniques and timely application, you can ensure the longevity and safety of your pavement.
Say no to maintenance. Prevention is cheaper than cure.
Make the only logical choice...
Contact us to start the Repair and Rejuvenation process and save up to 80% on your projected maintenance budget.
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Surfacing for 25 Years, we should post one of those cliché badges somewhere... Neh...