文档介绍：: .
硅酸盐通报 干较包浆后自然风干与包浆后标准养护的预处理方式具有最好的骨料改性效果，礁石骨料的空隙率、吸水
率、压碎值以及***离子溶出特性等均被优化。礁石骨料以 20%、40%、60%体积替代率掺入混凝土中，包
浆礁石混凝土 28 d 抗压强度较未包浆礁石混凝土分别提高了 %、%、%，***离子扩散系数分别
降低了 %、%、%，干燥收缩率分别降低了 %、%、%。礁石骨料经过包浆后改变了
其与水泥砂浆之间的界面过渡区，进而改善了礁石混凝土的力学性能、***离子渗透性能以及体积稳定性。
关键词:礁石骨料；礁石混凝土；包浆预处理；***离子溶出；体积稳定性；界面过渡区
中图分类号：TU528
Effect of Aggregate Slurry Pretreatment on Properties of Reef
Concrete
ZHU Zhaokun, GAO Xu, FAN Xiaochun, LAN Shaoding, ZHAO Dongsan
(School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China)
Abstract: In this paper, the effects of different pretreatment methods and high performance
coating cementing materials on physical properties, chloride ion dissolution behavior and
mechanical properties of reef aggregate were studied. The reef aggregate pretreated by coating
was used to prepare reef concrete, and the effects of pretreatment method and aggregate
replacement level on the mechanical properties, chloride penetration and volume stability of reef
concrete were discussed. The results show that the pretreatment method of standby after evenly
coated the aggregate with slurry and then drying in oven, exhibits the best aggregate modification
results than other treating methods, and the technical properties of reef aggregate such as void
fraction, water absorption, crushing value and chloride ion dissoluti