Effect of the size and the proportion of gas coal and coal-char on the consist-compressive strength of formed coke;

Influence of pressure head roughness upon compressive strength and test result dispersion of single crystal diamond;

Relation between compressive strength and fractal dimensions of jointed rock-mass;

Study on relationship between particle size distributional fractal dimension of cement particles and compression strength of cement mortars;

Discussion on notation about compression strength σ_d of metallic powder;

Study on the influence factors of compression strength of coking coal slime briquette;

Effects of the Number of Firing on Strength of Nano-ceramic and Traditional Ceramic in Metal-ceramic Crown Prosthsis;

Microstructures of the sintered specimens were examined by scanning electron microscopy and their strengthes and average coefficients of thermal expansion were tested.

Experiments show that the workability,the amount of cement and fine aggregate and the mechanical strength of concrete are influenced with the addtion of the fly-ash.

In order to greatly enhance the primary press strength of cement grouting liquid,types and weights proportion of additives were obtained based on the experimental study.

Under condition of experimental raw material quality, tested setting time, soundness, chemical shrinking rate and press strength of concrete mixed with high calcium fly ash only and concrete mixed with high calcium fly ash and steel slag to study their application in concrete by correlative standard experiment method .

Under the condition that pumping period(15-50 min) of the cement slurry is suitable,the press strength of common silicate cement grouting liquid could increase 50 to 100 percent th.