关键词: 一锅法;常温;保坍剂;吸附量;水泥净浆流动度

Abstract: A new one-pot method of synthesizing slow-release slump retaining agent under room temperature was introduced and the effect of chain transfer agent and initiator on fluidity and adsorption capacity of slump stabilizer was discussed.The results show that when the dosage of initiator is 0.7％of TPEG,the content of initiator is 2％of TPEG,the fluidity of cement paste loss is the smallest and the adsorption percentage at 1.5 h is the highest,and the properties of concrete reach high-points.The concrete slump loss keep no change within 2 h and has no adverse effect on the setting time and compressive strength.

Key words: one-pot method;room temperature;slump retaining agent;adsorption percentage;fluidity of cement paste