在配制大体积混凝土时,掺用矿粉、粉煤灰、HEA膨胀剂的情况下,使用聚羧酸盐减水剂配制的混凝土各项性能优于萘磺盐减水剂的配制的混凝土性能。聚羧酸盐减水剂通过自身低收缩的特征加之复配技术,促使混凝土的缓凝时间延长,以达到延缓混凝土水化热的集中释放,是防止大体积混凝土裂缝的关键因素之一。 In the preparation of mass concrete, mixed with mineral powder, fly ash, HEA expansion agent, the use of polycarboxylate superplasticizer prepared concrete performance better than the naphthalene sulfonate superplasticizer formulated concrete performance . Polycarboxylate superplasticizer through its own characteristics of low shrinkage combined with the compounding technology, prompting the concrete retarding time to prolong, in order to delay the concentration of concrete hydration heat release, is to prevent one of the key factors in the cracking of mass concrete.