养护制度对聚合物改性水泥砂浆强度的影响研究  

Effect of Curing Regime on Strength of Polymer Modified Cement Mortar

作　　者：徐洪涛[1] 冯虎[2] 高丹盈[2] 

机构地区：[1]郑州大学综合设计研究院有限公司,河南郑州450001 [2]郑州大学土木工程学院,河南郑州450001

出　　处：《施工技术》2016年第9期57-59,共3页Construction Technology

基　　金：国家自然科学基金项目(51308504);教育部高等学校博士学科点专项科研基金(20124101120013);河南省教育厅科学技术研究重点项目(13A560679)

摘　　要：通过系统试验,研究了不同养护制度对聚合物改性水泥砂浆强度的影响。研究结果表明,随着龄期的增长,养护制度对聚合物改性水泥砂浆强度有显著影响。在各养护制度下,各龄期的普通水泥砂浆强度均高于聚合物改性水泥砂浆的相应强度值;混合养护制度更利于聚合物改性水泥砂浆强度的增长;前21d采用混合养护、之后采用标准养护对改善聚合物改性水泥砂浆的脆性有利。An experimental study on the relativity between curing regime and the strength increasing by age of polymer modified cement mortar was carried out. The results show that the influence of curing regime on the strength increasing by age of polymer modified cement mortar is significant. In every curing regime,the strength of Portland cement mortar by each age is higher than that of polymer modified cement mortar. The dry and wet curing regime is more beneficial to the improvement of the strength increasing by age of polymer modified cement mortar than the other two curing regimes. Such curing condition as dry and wet curing regime in the first 21 days and standard curing regime later benefits for decrease of the brittleness of polymer modified cement mortar.

关 键 词：混凝土 水泥砂浆 养护 强度 试验 

分 类 号：TU528.064[建筑科学—建筑技术科学]