低热硅酸盐水泥在向家坝工程抗冲磨混凝土中的应用  

Application of Low-heat Portland Cement in the Abrasion Resistance Concrete in Xiangjiaba Project

作　　者：虎永辉[1,2] 姚云德 罗荣海[2] 

机构地区：[1]武汉大学,湖北武汉430072 [2]中国长江三峡集团公司,北京100038 [3]中国水利水电第三工程局,陕西西安71000

出　　处：《水电与新能源》2014年第2期38-42,共5页Hydropower and New Energy

摘　　要：同水胶比的中热、低热硅酸盐水泥粉煤灰混凝土室内试验研究表明，低热水泥混凝土的后期强度高于中热水泥混凝土，低热水泥混凝土抗冲耐磨性能和抗裂性优于中热水泥混凝土。向家坝工程消力池导墙观测表明低热水泥混凝土温度低于中热水泥混凝土6．5～7．1℃，低热水泥混凝土尚未发现裂缝。Laboratory experiments on the moderate-heat, low-heat Portland cement and fly ash concrete are carried out with the same water-cement ratio. Results show that the long-term strength of the low-heat cement concrete is higher than that of the moderate-heat cement concrete, and the resistance ability against abrasion and cracking of low-heat cement concrete is also better than that of the moderate-heat cement concrete. Observations on the stilling guide wall of Xiangjia- ba project show that temperatures of the low-heat cement concrete are 6.5 - 7.1 ℃ lower than that of the moderate-heat cement concrete, and no cracks are found in the low-heat cement concrete.

关 键 词：中热水泥 低热水泥 抗冲磨强度 抗裂性 裂缝 

分 类 号：TQ172.71[化学工程—水泥工业] TV653[化学工程—硅酸盐工业]