摘要
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。
The strength and shrinkage properties of mortars with different water-reducer were studied. The resuits indicated that the saturation point was the best dosage of water-reducer ,at which it not only helped to reach highest paste fluidity with minimum water-reducer dosage, but also reached the highest mortar strength and comparatively lower shrinkage rate.
出处
《广西师范大学学报（自然科学版）》
CAS
北大核心
2007年第1期74-77,共4页
Journal of Guangxi Normal University:Natural Science Edition
基金
National Natural Science Foundation of China(50409011)
关键词
减水剂
饱和点
强度
收缩
warter-reducer
saturation point
strength
shrinkage
