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<P>1. In the construction, the control of semi-rigid base when the water content of the best water content of 0.9 times, the degree of compliance to meet the specifications,concrete cutting equipment for sale rolling to be timely moisture conservation, to prevent grass-roots drying, maintenance end Immediately after spraying asphalt emulsion, made through the layer or layer, and then shop asphalt as soon as possible.</P>
<P>2. Preparation of asphalt mixture to control the heating time and heating temperature, do not make the aging of asphalt, strengthen the rolling,laser screed concrete contractors arizona so that the asphalt mixture to achieve the required degree of compaction, but also reduce the reflection cracks.</P>
<P>3. In order to reduce the asphalt surface layer due to the semi-rigid base of the shrinkage cracks generated cracks or cracks. Measures should be taken as far as possible to reduce the shrinkage cracks in the semi-rigid base itself. Highway laying asphalt surface before the crack to take preventive measures and treatment techniques can greatly reduce the occurrence of road cracks. This approach and approach is to emphasize the early steps in the road to take measures to prevent the formation of cracks. Or by selecting a road structure,best crack filler sale in botswana technology or material to deal with cracks that have occurred, which will reduce cracks or no cracks at all, or make the original or unavoidable crack activity greatly reduced.</P>