Send soil samples to lab for compaction test so as to determine the most reasonable water content ratio to enable on-site control of dry density.
将土样送试验室做击实试验，确定其最优含水率和现场控制干密度。
2
Field compaction test is done under the optimum mixture ratio.
在现场进行了最佳配合比的压实试验。
3
Through quality control of materials, mixing ratio design, proper mixing, correct compaction and curing, the cement-stabilized gravel cushion satisfies the design and application requirement.