Subgrade construction, after the soil, bulldozers rough leveling, is the direct use of flat machines, flat or turn over the sun, after mixing ash, and then leveling machines. The former province of fuel, but just on the soil, grader whether subsidence, if not sinking, plow over the 2 - 3 times, will be affected by the elevation. The latter does not pay for the oil, but the sun has been scraped off. It's a pity. On the basis of the road bed, the elevation requirements are accurate. Please have the experience in the construction of seniors seniors generous with your criticism. There is more than one. StopSimply put, when does the grader use?
That confused. The first step of subgrade construction is to compaction the pond slag, and the second is to construct the stabilized layer, that is to say, to hit the lime soil. Each level of the basic level should be controlled in advance, with labels. The grass roots must be layered and compacted by rollers.
Should first sun, and then fine, do not fall, the process upside down, more quality problems
Should first sun, and then fine, do not fall, the process upside down, more quality problems
