一、MG缓凝引气减水剂该减水剂是以造纸厂生产纸张的纸浆废液为原料而制成的。它将纸浆废液中对水泥有害成份除去或控制在允许范围内,利用废液中木质磺酸盐的表面活性,使水泥得到塑化和改变其气孔结构,达到改善砼性能的目的。在砼中掺入该减水剂后,其流动性可增大2～3倍,节约水泥10%,强度提高15%,初凝时间延缓3～6h,终凝时间延缓2～ I. MG retarding air-entraining water-reducing agent The water-reducing agent is made of paper pulp waste liquid produced by paper mills. It removes or controls the harmful components of the cement in the pulp waste liquid within the allowable range, and utilizes the surface activity of the lignosulfonate in the waste liquid, so that the cement is plasticized and its pore structure is changed, and the purpose of improving the rhodium performance is achieved. After adding the water reducer in the mortar, the fluidity can be increased by 2 to 3 times, saving 10% of cement, increasing the strength by 15%, delaying the initial setting time by 3 to 6 hours, and delaying the final set time by 2 to 2