Study on influence mechanism of AAC outgassing and thickening matchability
The study of fly ash aerated concrete with different gypsum dosage,casting temperature,water/materi-al ratio,cementitious materials,lime percentage and the matching of the aerating rate and thickening rate of casting slurry is of great significance in promoting the development of aerated concrete field.In this paper,the matching of different gypsum dosages,casting temperatures,water/material ratios,cementitious materials,and lime percentages on the gassing and thickening rates of casting slurries are analyzed.The results show that:the amount of gypsum has no significant effect on the slurry gasification rate and gasification height,gypsum con-tent increases will accelerate the slurry thickening,more than 60% of gypsum content thickening time close to 30min;The higher the pouring temperature,the faster the outgassing rate,the faster the thickening rate,the fi-nal outgassing height is slightly reduced;The lower the ratio of water to material,the faster the rate of thicken-ing;too much rubber material,the slower the growth of the gas height,the lower the impact on the gas and thick-ening rate;lime proportion(60%～75%)on the gas rate and thickening rate of the influence is small.
万方数据
维普
