SDA rock bolt grouting by rod hole in the body from the inside to outside, at the same time, the outside of the rock bolt which plus plate and plug, can effectively prevent slurry spillover, when necessary, also can undertake pressure grouting, make grout diffusion to the surrounding rock fracture, so the rod body around the SDA rock bolt can form a thick enough and uniform coating, significantly improve the durability of the rod body; And ordinary mortar anchor is often using technology of grouting first ,and then insert bar, this process is difficult to guarantee grouting full degree, therefore it is often hard to avoid phenomenon of the steel rod body naked, if the naked steel contact with the ground water will lead to bare steel reinforcement corrosion, thus reduce the durability of the SDA rock bolt.
Sinorock is a reliable hollow anchor bolt manufacturer in the market. Developed in accordance with set industrial norms, Sinorock SDA rock bolt is severely checked and perfect on all quality parameters. Our extensive ranges of rock bolts are designed carefully by our experienced engineers who have a sound knowledge about these components. Our collection of goods includes of R thread anchor system, T thread anchor system, anticorrosion rock bolt, rock drill, etc.
