High speed railway bridge pot rubber bearing grouting material selection

With ordinary Portland cement and sulfate aluminate cement according to certain proportion distribution as cementing material, 0 ~ 1 mm quartz sand as aggregate, and mixed with fly ash, retarded the seam an agent, expansion the seam an agent, and other materials, developed an initial fluidity & gt; Fluidity of 320 mm, 30 min & gt; 300 mm, 2 h compressive strength & gt; 30 MPa the early strength of grouting material, and successfully applied to the beijing-shanghai high-speed railway, zheng west passenger dedicated line and so on more than in the high speed railway bridge pot rubber bearing installation engineering. To this kind of material (China construction science research institute Pot rubber bearing leveling and fixed) Issued by the standard is the base of science and technology' 2005 】 101 the passenger dedicated line bridge pot rubber bearing interim technical conditions ', the new standard, Star steel bearings) Will be in the later chapters to launch! Through clinical trials, the test result is good! Please look for the brand - if you want to purchase such materials ！