After that, the mix design method of self-compacting backfill is proposed.

The major research thesis tunnels with low noise characteristics of anti-slide OGFC asphalt concrete pavement mix design methods, anti-sliding noise reduction performance and construction crafts.

It is reported that the Combined Latin Square Design(CLSD) was used in field experiment for comparing some cotton varities and it was confirmed that whatever soil fertile difference was showed in one or two ways, the efficience of experiment may be improved by using CLSD So that the CLSD should be used to substitute the RBD which is used generally in field experimen

Research on formulation designs in silicon carbide ceramic products;

The formulation design and the key performances thereof are focused.

The formulation design of hybrid fibre for braking friction material by the H Scheffe typical polynomial regression model was presented, regression equation was gained by means of stepwise regression optimization method in SPSS, and the optimum point and value of the objective function was obtained by the complex method of multivariate bounded function.

Several measures of improving the durability of curing bladder were proposed from the aspects of the bladder use, product structure, formulating of recipe and processing.

A general program of formulating of recipe suitable for self-drying water-soluble alkyd resin was established.

The formulating of recipe of the no asbestos sealing material filled with Aramid fiber was carried out by means of the uniform design method,according to the results of the transverse tensile test.