关键词: 外加剂;湿拌砂浆;稠度损失;保水率;凝结时间;强度

Abstract: Influence of different admixture on wet-mortar consistency loss, water retention, setting time, compressive strength, bond strength and shrinkage rate, and by means of X-ray diffraction (XRD), scanning electron microscope (SEM) tested the related samples were researched.The results show that the admixture can improve the performance of the wet-mixed mortar, such as decreasing the 8 h consistency loss, enhancing the water retention rate, prolonging the setting time, improving the compressive strength and bond strength, and can better ensure the smooth progress of construction.

Key words: admixture;wet-mixed mortar;consistency loss;water retention rate;setting time;strength