减缩型聚羧酸减水剂的合成及性能研究  

Synthesis and performance of shrinkage reducing polycarboxylate superplasticizer

作　　者：杨飞 吕凯 周伟 曾志勇[3] 杨淑娟 王战 李康 张勇[2] YANG Fei;LYU Kai;ZHOU Wei;ZENG Zhiyong;YANG Shujuan;WANG Zhan;LI Kang;ZHANG Yong(Zhejiang Yubo New Material Co.,Ltd.,Taizhou 318000,China;Zhejiang Sci-Tech University,Hangzhou 310018,China;Taizhou University,Taizhou 318000,China)

机构地区：[1]浙江宇博新材料有限公司,浙江台州318000 [2]浙江理工大学,浙江杭州310018 [3]台州学院,浙江台州318000

出　　处：《混凝土与水泥制品》2023年第9期36-40,共5页China Concrete and Cement Products

基　　金：浙江省重点研发计划项目(2021C03160)。

摘　　要：自主研发合成了一种减缩型聚羧酸减水剂(SRPCE),研究了掺SRPCE的胶砂和混凝土的性能,并通过表面张力分析,阐述了SRPCE影响混凝土收缩性能的作用机理。结果表明:SRPCE可以有效地降低胶砂和混凝土的收缩,提高混凝土的减水率和强度。A shrinkage reducing polycarboxylate superplasticizer(SRPCE)was developed and synthetized,and the properties of mortar and concrete mixed with SRPCE were studied.The mechanism of SRPCE affecting the shrinkage performance of concrete was elucidated through surface tension analysis.The results indicate that SRPCE can effectively reduce the shrinkage of mortar and concrete,and improve the water reduction rate and strength of concrete.

关 键 词：混凝土 胶砂 性能 表面张力 作用机理 

分 类 号：TU528.3[建筑科学—建筑技术科学]