An excellent pumping admixture was made up by use of FDN compounded with calcium lignosulphonate, retarder for controlling slump loss and water retaining admixture for reducing water segregation rate.
3
优选配合比解决了泵送混凝土与减少水泥用量和低坍落度的矛盾。
For pumping concrete mixture the problem of reducing the cement content and keeping better workability was also solved by using optimum proportioning.