At the construction site of the Jinrui section of the S223 million-year-old Cha-Yuanzhou Jinrui (Zhujin Line) secondary road reconstruction project, cement pavement crushers and road rollers are under construction. Unlike the previous use of a large number of crushing picks to crush the cement pavement, While crushing the original cement pavement, the subgrade cushion is being formed simultaneously.

 

 

 

According to the person in charge of the project, the construction technology is a new type of environmental protection and energy saving technology. It is considered a new technology nationwide. It has been successfully used in Shanxi, Inner Mongolia and other places, but it is the first time it has been adopted in Yichun, Jiangxi. According to the old technology, the original damaged cement pavement needs to be excavated and transported away, and the gravel is repurchased as the subgrade cushion. The construction period is long and the purchase cost is high. After adopting the new technology, one is to promote environmental protection. The original damaged cement pavement can be directly used as a cushion after in-situ recycling construction, and there is almost no need to refill gravel; the other is to save purchase costs The reconstruction project has a total length of 14.68 kilometers and requires 1,200 cubic meters of crushed stone cushion per kilometer. Calculated at 85 yuan per square, a total of 1,497,600 yuan in crushed stone procurement costs have been saved; the third is to save labor and shorten construction time. The process takes 4 months to complete the cushion construction, and the new technology of cement crusher construction can complete the entire line of cushion construction tasks in only 2 months.