防水外加剂 meaning in English

water resisting admixtrue
waterproofing admixture

Their effects on the chemical shrinkage , self - shrinkage , hole structure of cement stone and on the shrinkage of mortar and concrete were also studied thoroughly , and a concrete admixture with high performance of crack - resistant and water - repellent was prepared
通过它们对水泥石的化学收缩和自收缩、孔结构以及对砂浆及混凝土的收缩性能的深入研究配制出了一种性能优良的混凝土抗裂防水外加剂。
The relation between addition content of calcined kaolin , aluminium powders and aluminum sulfate in concrete and compressive strength , slump constant , 30min slump and permeability altitude were studied , and according to the experiment results , the component percent contents of crack - resistant and water - repellent admixture in cement were determined as following : calcined kaolin 6 % , aluminum sulfate 4 % and aluminium powders 0 . 005 %
通过对煅烧高岭土、铝粉、硫酸铝在混凝土中掺量对其抗压强度、初始武汉理工大学硕士学位论文坍落度、 3omin坍落度保留值及透水高度的影响，确定了配制抗裂防水外加剂的各组成成分以其占水泥质量的百分比分别为:锻烧高岭土6 % ，硫酸铝4 % ，铝粉为0 . 005 % 。