To make reconstituted samples in hollow cylinder apparatus,a compacting instrument was developed according to the principles of the compacting tool used for traditional triaxial reconstituted samples.

By serial instrumentation impact experiments at different temperature,energy changement condition and the fracture SEM at different impact fracture stages of the pipeline steel used under special environment are studied.

Study on compaction characteristics of nature grit;

The result shows that density of disturbed samples under standard compaction test would be very difficult to reach the dry density in natural state,because the stru.

This paper briefly introduces the mechanism of compaction test and its importance to the embankment project s quality evaluation,in the hope that it may arouse the attention of the inspection and experiment bodies to make sure of the scientific value,rationality,fairness and solemnity of compaction test s index.

Micromechanism of strength increase with curing time for compacted cement-soil;

Analysis on the regularity of expansion and deformation of compacted expansive soil in Handan;

In this paper based upon analysis of the over compactness phenomena of some highway in Shanxi the relationship between maximum dry density of heavy compaction test and practical maximum density of soil foundation is acquired, which will provide valuable reference for compactness control of earthwork subgrade.

The hit-solid experimental research of pavement basis material that mixing desulfurizing fly ash;