mixing sample
2.penetration resistance of mortar was investigated in this paper. The experimental results showed that by adding 0.4% and 0.6% GCL1-3A,the compressive strength of the hardened mortar were 145% and 182% of that of control sample. The penetration resistance of the mortar mixing 0.4% GCL 1-3A under water pressure of 0.2MPa was 11 times higher than that of the control mortar.
3.DTG, DDTG and XRD techniques were used to study the interaction between CuO and Fe2O3 in CuO-Fe2O3 system. Two series of sample with the same composition (atomic ratio of Fe and Cu=0.4) were prepared by mechanically mixing CuO and Fe2O3 powder and by impregnating the precipitated CuO with Fe(NO3)3 solution respectively.
4.A sample truck, the DHC emulsion mixing-loading truck is used for the project of cutting into mountain and tilling the sea at Kangkuno industry Villang in Hong Kong. These mainly comprise choosing and improving the explosive used, arrangement of station buildings in supply station, comparison of boring-blasting technology before and ofter the truck used and the notable economic benifits created by its application.
