CGM high-strength non-shrinkage grouting material mixing the advantages of fine grinding slag grouting material of low permeability

CGM high-strength non-shrinkage grouting material CGM high-strength non-shrinkage grouting material manufacturer CGM high-strength non-shrinkage grouting material price mixed ground granulated slag CGM high-strength non-shrinkage grouting material tested CGM high-strength non-shrinkage grouting material has good resistance to chloride ion penetration performance. Building materials shows that when the ground granulated slag content of less than 60% of the total quality gelled material and water cement ratio of 0. 50, CGM high-strength non-shrinkage grouting material of chloride ion diffusion coefficient is larger than that of Portland cement containing only CGM high-strength non-shrinkage grouting material at least 10 times smaller. The situation of the frost resistance durability is different. Mixed with ground granulated slag and CGM high-strength non-shrinkage grouting material with appropriate mixture preparation, the frost resistance durability and contains only Portland cement CGM high-strength non-shrinkage grouting material is the same. However, mixed with ground granulated slag of air-entraining CGM high-strength non-shrinkage grouting material without any positive role. In view of fine grinding slag on the permeability resistance of CGM high-strength non-shrinkage grouting material improvement, but why infiltration ground granulated slag can not enhance the durability of CGM high-strength non-shrinkage grouting material of antifreeze is not clear, and the role of form and reduce the positive effects of water cement ratio is the same. So be aware that, CGM high-strength non-shrinkage grouting material exposed in deicing salt, regulation of fine grinding slag content shall not exceed 50% of the total quality of gelled material. When ground granulated slag and fly ash mixed, both quality and limit of CGM high-strength non-shrinkage grouting material what type do you gelled material 50% of the total quality; The dosage of fly ash should not exceed 25%. To point out that in order to make the blending of fine grinding slag CGM high-strength non-shrinkage grouting material with Portland cement containing only the CGM high-strength non-shrinkage grouting material to achieve the same antifreezing, request the ferrous before freezing and thawing cycle must extend the CGM high-strength non-shrinkage grouting material of wet keep time. The positive role of fine grinding slag mainly stems from a more dense microstructure and hydration cement slurry more gap is C - S - H filling, due to the Portland cement - Improving the microstructure of fine grinding slag complex system, and the content of calcium hydroxide is lower, thus CGM high-strength non-shrinkage grouting material of sulfate erosion resistance is improved. Mortar test showed that 50% of fine grinding slag composite cement and Portland cement type I ( C3A content of 12%) Show the sulfate resistant cement ( V) The same sulfate resistance. In order to effectively play the positive role of fine grinding slag, ground granulated slag content of at least 50% of the total quality should be gelled material, better is 60%, Between 70% %. Mixing of all manufacturers of fine grinding slag irrigation CGM high-strength non-shrinkage grouting material difference between the slurry of low permeability and alkali - control easier Alkali aggregate reaction, can significantly reduce the migration, through the hydration products of fine grinding slag alkali absorption, especially when the high temperature. When the condensable alkali activity of siliceous aggregate or Portland cement containing alkali quantity up to 1. 0% of fine grinding slag this positive role is crucial.