实际工程中通常通过外加剂过掺来解决混凝土运输过程中的塌落度损失,但外加剂过掺会对混凝土的早期性能和后期的耐久性能产生很大的影响,针对该问题选用两种实际中常用的高效减水剂进行实验。实验发现,适当掺量的减水剂对水泥性能有益,但外加剂过掺对水泥净浆的流动性能、抗压抗折强度以及收缩产生很大的负面影响。 In practical engineering, the loss of slump during concrete transportation is usually solved by admixture admixture. However, the admixture admixture will greatly affect the early performance and the later durability of concrete, and two kinds of practical In the commonly used superplasticizer experiments. It was found that the appropriate amount of superplasticizer is beneficial to the performance of cement, but admixture admixture has a great negative impact on the flow properties, compressive and flexural strength and shrinkage of cement paste.