Cement admixture compositions formed from alkenyl ether/maleic anhydride copolymers having specific molecular structures have been found to impart a high degree of slump loss over a sustained period of time while not causing any significant set retardation of the treated cement based composition.
研究发现,由具有特定分子结构的烯基醚/
马来酸酐共聚物形成的
水泥外加剂组合物可在持续一段时间内产生较高程度的坍落度损失,同时不会对经处理的
水泥基组合物造成任何明显的凝固延迟。