Tongchuan mine silence broken expanders, Tongchuan static blasting demolition agent of choice for plant carbatex silent broken agent full-cut design with broken concrete structures Jiaze silent broken agent (referred carbatex HSCA broken agent) is relatively easy, because it requires only damage demolition, but the exploitation of stone blocks is different, which requires industry-standard cut of blocks, not to hurt the stone, surface roughness of not more than ± 3cm, good integrity. Therefore, to do mining work is very important. 1.1 mine investigation before mining marble, granite and other precious stone mines must have a preliminary investigation, the best geological team geological exploration, understanding ore stocks, veins to mine, joint development, the visual estimation theory into blocks rate, into a block of size. If the ore body joints developed many cracks, into blocks rate of 30% or less, no commercial value, even open up the blocks, a board rate. So, mine geological survey is based on the premise necessary to determine whether the value of mining and stone quarrying design. Should not blind exploitation, otherwise more harm than good. What is a reasonable rate into blocks, namely 10000m 3 ore body, carve out a more qualified 3000m 3 stone blocks, only the value of mining. Although the mechanism of stone blocks and concrete cutting, rock crushing mechanism is basically the same. However, its particularity, namely in the borehole irrigation Ru Jiaze SCA broken agent, to break into chunks of rock, rather than broken into fragmented. Jiaze agents SCA were broken cutting Dushan jade, marble and granite field tests proposed cut stone blocks of the mechanism carbatex SCA broken agent. Select three different hardness test rock - Jade (including jade rock gabbro), marble and granite, they are crystalline particles of mineral aggregates, it is hard and medium-hard rock, marble and granite has a clear all anisotropic characteristics. Experimental determination of mechanical properties of the three following parameters of rock mechanical properties of the rock three rock Title density (t / m 3) Compressive Strength (MPa) Tensile strength (MPa) brittleness (R Pressure / R Pull, MPa) jade alone 167.4 18.0 9.3 3.09 marble (Township) 2.71 2.66 34.7 160.2 7.7 20.8 1.5 23.1 Note Granite (town square): Marble, granite mechanical properties parameters are Geology and Mineral Resources Bureau of central laboratory assay values. By experiment, we believe that the rock cut resistance is mainly determined by their size and fragility of the tensile strength values. Greater tensile strength of rock, the more difficult to cut; the higher the value, brittleness, cutting more favorable. The so-called brittleness values ??refer to the same rock, the ratio of compressive strength and tensile strength in the same direction. From the table, three rocks, jade alone hardest cutting, marble cutting most vulnerable. Through trials have confirmed this law. Jiaze silent broken agent cutting mechanism on the rocks, we passed on the jade, marble and granite mining and monomer hundred cuts cutting test to get information to prove it with all the different zhayaobaopo rock. zhayaobaozha damaging effects caused by rock interaction is the result of stress generated instantly spread zhayao accompanied by a high temperature high pressure gas generated expansion. The rock cut Jiaze silent broken agent is a hydration reaction carbatex silent broken agent in the borehole slowly to generate Ca (OH) 2 crystal formation expanded its expansion pressure of the surrounding medium play a destructive role. It features a static pressure of the rock fracture.