Grade 2 and below and the laying of low-grade road in the steep hillside section of the construction of particularly difficult or a large number of blasting to move digging for filling, can be used to fill the way to fill, but the road bed is not less than 1.0m range Should be layered filling compaction. Gravel embankment of expressways, first-class highways and other grade roads with high-grade pavement shall be filled with layers, and shall be stratified and compaction. The thickness of…

Mix Design of Recycled Asphalt Mixture

The mixing ratio of hot mix plant was designed by Marshall method through three stages: target mix design, production mix design and production mix verification. Through the above three stages to determine the recovery of asphalt pavement materials (RAP) blending ratio, the variety of new materials and ratio, aggregate gradation and the best amount of asphalt. In this case,[url=http://smallroadroller.com/]Small Road Roller - Shanghai Doan Machinery…

Management of daily, maintenance of regular

In the establishment of the mechanism, based on the maintenance of the content and standards dissolved into the equipment management activities to make the maintenance and maintenance work done a qualitative, substantial, tangible and effective development, so that equipment maintenance work frequently .

To carry out the form of responsibility area "charter group activities." According to the production positions and maintenance personnel…

At present, there are two kinds of common gravel spreader: one is with a distributor plate, spreader of the distributor (Figure 1), the silo in the hopper drum rotating force driven into the sub-material In the plate 2, the stone is subjected to the resistance of the slanting partition plate of the distributing plate 2 so as to be moved to the both sides at the same time of falling and reach the purpose of increasing the width of the spreading, and striking the spreading plate 3 to make the…