BEFORE
AFTER
ROAD 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 sub-strate, 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.
Pothole Repair
Potholes are a problem. There are many reasons why they form.
We know that Compaction is key when it comes to base prep.
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We remove all the contaminated material and replace it with new base material. After the base material is compacted and achieves the correct soil moisture content, a generous layer of asphalt is compacted to be flush with the existing asphalt surface. Typically 30mm of new asphalt is sufficient
A sealer is applied to the joining edges to make sure the patch is sealed and no water can penetrate.
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We can prevent future decay by introducing Tarco Rejuvenator-CSB spray to your asphalt surface,
Save your money and your surface with TARCO Rejuvenator.
Pothole repairs in Pretoria and Johannesburg
Crack repair using hot-pour method.
ROAD SURFACE CRACKS
Crack Sealing is vital for Surface 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 15mm 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.
>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.
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. It is vital to thoroughly clean the cracks and remove debris, dirt, and moisture. Using compressed air at high heat and pressure is effective at cleaning and drying surface cracks. Choosing 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. Utilizing 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, we partially fill the cracks and allow them to cool before completing the fill. Crack 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.