Why Road Asphalt Tape Not Be Too Thick?

Why road asphalt tape not be too thick? We will explain as below:

1. Asphalt tape can be used to repair cracks on road surface, and it also can be used to pothole repair, jointing new road pavement and old pavement. In the photo you show me, it's jointing new and old road pavement.

2. Let's think back how and why we use this asphalt tape for jointing new and old road pavement. When we repair potholes, we will use cold mix(asphalt mix up with aggregate), so, after road roller compacting, there always has a certain gap rate. so we need something thick and soft to fill this gap. And In the process of rolling asphalt mixture, 3-5mm thick asphalt tape will embedded in the gap between the old and new asphalt pavement. so, it will achieve a good sealing and filling effect.

3. Asphalt tape has it's own chemical characters. in the one hand, The asphalt tape getting soft when temperature gets higher. in the other hand, it's getting embrittlement in low temperature.

4. In the construction process, it is easy to appear bubbles, empty drums and other problems, which affect the durability.

5. Cost factor. Excessive thickness of the asphalt tape will increase the cost. 3-5mm thick asphalt tape not only can be used in the jointing, but also it's good when put it on the road surface cracks. Widely application.

so, Reasonable thickness design can ensure quality at the same time, reduce the overall cost.