冻融和干湿循环作用下聚合物改性砂浆强度变化研究  

作　　者：赵治冶 

机构地区：[1]山东铁路投资控制集团有限公司

出　　处：《门窗》2020年第5期230-233,共4页Doors & Windows

摘　　要：为探究环境作用下聚合物改性砂浆力学性能发展规律,研究了乙烯/醋酸乙烯共聚胶粉(EVA)、丁苯乳液(SBR)及水性环氧树脂(EP)对普通水泥(OPC)砂浆容重、抗压强度、抗折强度及粘结强度的影响,探讨了冻融和干湿循环作用下不同聚合物改性砂浆粘结强度的损伤规律。To explore the physical and mechanical characteristics of polymer-modified mortar with different compositions un der different environmental effects,the influences of ethylene-vinyl acetate copolymer powder,styrene-butadiene emulsion and water-borne epoxy resin emulsion on apparent density,compression strength,flexural strength and bonding strength of ordinary portland cement(OPC)mortar were studied.Furthermore,the deteriorating behaviors of different polymer modified mortar under freeze-thaw cycles or dry-wet cycles were discussed.

关 键 词：聚合物改性砂浆 强度 冻融作用 浸烘干湿交替作用 

分 类 号：TU5[建筑科学—建筑技术科学]