Created by potrace 1.15, written by Peter Selinger 2001-2017
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What are the causes of lateral cracks in asphalt pavement? How to deal with it?
Reason:
1. One is the load-type crack, which is mainly caused by the crack caused by the driving load. Under the action of vehicle load, tensile stress is generated at the bottom of the semi-rigid base. If the tensile stress is greater than the tensile strength of the base material, the bottom of the base will crack quickly until the asphalt surface layer is affected;

2. The other is non-load type cracks, low temperature shrinkage cracks and temperature fatigue cracks mainly based on temperature cracks; cracks caused by improper construction technology or the use of substandard materials.

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Treatment measures:
1. When there are small cracks in the road surface, it must be dealt with and renovated in time.
2. For fine cracks (2-5mm), modified emulsified asphalt can be used to fill the cracks.
3. For coarse cracks larger than 5mm, modified asphalt (such as sbs modified asphalt) can be used to fill the cracks. Before filling the seam, the inside of the seam, seam debris and garbage must be removed, and the inside of the seam must be dried. After filling the seam, sprinkle coarse sand or 3-5mm stone chips on the surface.
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