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为了探讨外加剂对混凝土工作性能和力学性能的影响,本文主要采用了不同种类的减水剂、早强剂、膨胀剂进行对比研究。结果表明,掺聚羧酸系减水剂的混凝土性能最佳,初始坍落度大且保坍性好,泌水状况改善,强度也有提高。
In order to study the effect of additives on the performance and mechanical properties of concrete, this paper mainly uses different types of superplasticizer, early strength agent, expansive agent for comparative study. The results show that the performance of concrete with polycarboxylate superplasticizer is the best, with large initial slump and good slump retention, improved bleeding condition and higher strength.