The sulfur amount of fly ash has a substantial influence on the intensity and stability of road base course.

This paper expounds the superiorities of cement stabilized aggregate being as the material of the base course, and points out some matters need attention in the process of construction preparation, mixing, paving, rolling, and curing, etc.

According to the lab test and the construction,the success has been made to apply the tailing sands to the base course of pavement as a building material,thus reducing the environmental pollution,saving land resource.

The author made the research on the techniques of applying coal gangue as base course materials against the situation that there is a lot of abandoned coal gangue in the coal area.

Design of communication protocol at link layer of a mine monitoring system;

By analyzing the status of physics layer, data link layer, application layer in IEC 60870-5-103 protocol provides the conversion method from IEC 60870-5-103 protocol to EtherNet/IP networks and summarize the thesis.

In the proposed scheme, routing model at a node accepts or rejects a routing request based on congestion status at the link layer.

Application of breccia in pavement base for Jiamusi-Qitaihe Section of Hegang-Dalian Highway;

Analysis on suitable pavement base materials in Tongchuan;

Discussion on the high performance soil solidification mixture used as pavement base;

Popularization and application of lime-fly ash stabilizing magnetization wheel road base on Qian'an city

The lean concrete road base is easy to bring dry contraction due to its much amount of cement and large exposed area.

Studies and tests are carried out on its use for high class road base, which include the properties of raw materials, mix design, road performance, mechanism of strength formation, etc.