The coal ash on the properties of CGM high-strength non-shrinkage grouting material 6 big impact

CGM high-strength non-shrinkage grouting material CGM high-strength non-shrinkage grouting material manufacturer CGM high-strength non-shrinkage grouting material price because the coal ash has chemical activity, particle morphology and micro aggregate effect, thus adding fly ash can reduce the water requirement of CGM high-strength non-shrinkage grouting material, improve the CGM high-strength non-shrinkage grouting material liquid mixture and water retention and pumpability and plaster, such as performance, reduce bleeding, segregation and slump loss, prolonging CGM high-strength non-shrinkage grouting material setting time, reduce the hydration heat of CGM high-strength non-shrinkage grouting material, improve the CGM high-strength non-shrinkage grouting material chemical corrosion resistance, impermeability, inhibit JianJiLiao reaction, etc. 1, work item; After an equal amount of fly ash to replace cement, achieve the same liquidity, can reduce the unit water use of CGM high-strength non-shrinkage grouting material, improve pumping CGM high-strength non-shrinkage grouting material of pumpability, secrete water, to extend the time of final set. Unit water consumption reduction depends on the quality of fly ash, cement replacement rate of hebei tangshan CGM high-strength non-shrinkage grouting material manufacturer, CGM high-strength non-shrinkage grouting material mixture ratio, fine aggregate size and other factors. 2, strength; And replacement parts of fly ash cement admixture of CGM high-strength non-shrinkage grouting material, some lower early strength, long age strength is increased. The quality of fly ash and replacement rate, the quality of cement, CGM high-strength non-shrinkage grouting material such as water cement ratio, curing condition and age has its effect on the strength of the long age growth. 3, the permeability resistance; Mixing fly ash CGM high-strength non-shrinkage grouting material and not mixing fly ash CGM high-strength non-shrinkage grouting material, compared to the early low permeability resistance, and long age has a lot to improve the permeability resistance, so should pay special attention to in the construction to strengthen mixing fly ash CGM high-strength non-shrinkage grouting material early curing, in order to prevent the early cracking of CGM high-strength non-shrinkage grouting material. 4, durability; With equal strength and air content compared to the same benchmark CGM high-strength non-shrinkage grouting material, mixing fly ash freezing-thawing resisting ability of CGM high-strength non-shrinkage grouting material basic quite, but the fly ash of jingmen carbon content (CGM high-strength non-shrinkage grouting material manufacturer Ignition loss) High, freezing-thawing resisting of CGM high-strength non-shrinkage grouting material has a great influence and carbonation resistance. 5, hydration heat; Fly ash replacement part cement CGM high-strength non-shrinkage grouting material, produced in the process of hardening of the hydration heat will be eased, the speed of the hydration heat release amount nearly step also reduce. 6, drying shrinkage and modulus of elasticity; Prepared using fly ash to replace partial cement CGM high-strength non-shrinkage grouting material, under the premise of no increase in water is helpful to reduce the dry shrinkage of the CGM high-strength non-shrinkage grouting material; Fly ash of CGM high-strength non-shrinkage grouting material elastic modulus is similar to combat the effects of the intensity of law, the influence of early elastic modulus decreased, the late rise gradually.