Crack is one of the major diseases of asphalt pavement, using a variety of techniques to close pavement crack closure to prevent penetration of water into the internal structure of the road, turned out to be the road to prevent water damage to slow the disease appears to extend the effective life of the pavement means, as domestic and foreign Asphalt Pavement Prevention Required program of conservation.
Study pouring equipment and pouring material is also becoming more mature, and its representative products are high-performance hot melt asphalt pouring glue. High temperature stability of Europe and imported products have good ductility and low temperature cracking performance, but the price is higher, and the applicability of the region imported products in different countries are different. In order to meet the domestic demand for high performance asphalt road pouring plastic, for the current domestic problems of similar products, our research by analyzing the imported products, the performance of domestic products, independently developed the DR series pouring glue products. DR series pouring glue into four types: high-temperature, ordinary type, low temperature and cold type, respectively, for 0 ℃, -10 ℃, -20 ℃ and -30 ℃ regions.
By designed slotted size, adjust the width and depth well for slot machine, then slotted the job. The slot size should be promptly adjusted according to the change of cracks to meet the minimum design requirements.
Our sealant replace traditional asphalt pavement crack treatment, it is a major improvement in road maintenance techniques. Traditional process due to restrictions Cold brittleness and high temperature softening bituminous materials and other characteristics of the repaired crack will change with the temperature of the surface layer after a year of re-sizing cracking. The existence of this problem, aggravated the maintenance workload road and material costs. And our sealant overcome the traditional shortcomings on the material properties of asphalt material.
