Large volume of CGM high-strength non-shrinkage grouting material and its features

CGM high-strength non-shrinkage grouting material CGM high-strength non-shrinkage grouting material price CGM high-strength non-shrinkage grouting material manufacturer root yunnan grouting material wholesale, according to the current construction specifications stipulated cast-in-situ CGM high-strength non-shrinkage grouting material volume is more than 100 m & sup3; For large volume CGM high-strength non-shrinkage grouting material, the casting construction plan shall be according to the large volume of CGM high-strength non-shrinkage grouting material properties and of the commonness of CGM high-strength non-shrinkage grouting material to develop, the main features; 1, CGM high-strength non-shrinkage grouting material has the property of hardened shorten, the features of common CGM high-strength non-shrinkage grouting material construction impact of small, easy to overcome. Yet in mass CGM high-strength non-shrinkage grouting material construction, is a very outstanding problem. Because of the large volume of CGM high-strength non-shrinkage grouting material has big cross section, bulky, CGM high-strength non-shrinkage grouting material shrinkage caused by reduced stress is bigger also, if mishandled, easy to damage of CGM high-strength non-shrinkage grouting material structure. 2, CGM high-strength non-shrinkage grouting material in the process of hydration hardening will release a lot of heat. In general CGM high-strength non-shrinkage grouting material construction, because of the cross section is small, the heat generated by the uniform distribution and release, but during the construction of large volume, because it is not easy heat dissipation, Especially for large volume with the constraint of CGM high-strength non-shrinkage grouting material) , CGM high-strength non-shrinkage grouting material temperature rise of each part, the process of thermal expansion is not consistent, then generates temperature stress, lead to damage of CGM high-strength non-shrinkage grouting material structure. Therefore, the standard provisions of the state, big volume CGM high-strength non-shrinkage grouting material internal temperature and external temperature of the larger temperature difference shall not exceed 25 ℃. Construction process control 1, choose product of ready-mixed CGM high-strength non-shrinkage grouting material to ensure that the CGM high-strength non-shrinkage grouting material production, and selects the pumping construction technology of the layered piecewise uniform cloth artesian, avoid the generation of construction joints. 2, choose information temperature monitoring curing method, under, in each layer of CGM high-strength non-shrinkage grouting material construction casting is all set up 27 temperature sensor, temperature every hour, in order to regulate temperature difference between inside and outside at any time. 3, large volume after final set of CGM high-strength non-shrinkage grouting material timely set-up striped awning to conceal, use a foundation pit for tempering tank. In the hot water storage, together with 9 lamp high-power halogen lamp regulate the temperature of hide huts, add hot water temperature in hot and cold water regulating reservoir, control of CGM high-strength non-shrinkage grouting material inside and outside temperature difference is less than 25 ℃. 4, according to the temperature measured data, the large volume of CGM high-strength non-shrinkage grouting material pouring temperature after the fifth day center present peak of 78. 5 ℃, reservoir water temperature of 56. 2 ℃, large temperature difference is 22. 3 ℃ changzhou grouting material manufacturer in national standards allow hebei grouting material manufacturers within the scope of xu, illustrates construction process successfully.