Mechanism of water-reducer in cement hydrating process:（1） Restrains hydration of C3S and accelerates hydration C3A at 1d. The chemical shrinkage with Calcium lignosulfonate for 1d has little change with addition.
4.减水剂对水泥水化历程的调控作用机理:（1）随木钙掺量的增加1 d化学收缩变化不明显。
参考来源 - 功能可控型聚羧酸减水剂的研究与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
The chemical shrinkage caused by cement hydration may bring out the volume change of mortar and concrete, and the appearance of cracking.
水泥水化反应引起的化学收缩会引起砂浆及混凝土的体积变化，可能会导致收缩裂缝的产生。
The addition of calcined kaolin to cement increased the chemical shrinkage of cement stone, but it had no distinct impact on the self-shrinkage of cement stone.
煅烧高岭土掺入水泥中，增加了水泥石的化学收缩，对水泥石的自收缩的影响并不明显。
Test investigation on the chemical shrinkage or expansion of alkali-activated cementing materials and water-cement were carried out in this paper, in which water-cement was as control sample.
本文对碱激胶凝材料与水-水泥体系的化学收缩或膨胀进行了试验研究，其中以水-水泥体系为对比样。
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