• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Material Science and Engineering >Synthesis of High Performance Polycarboxylate Superplasticizer through Redox Initiation System and its Application in Concrete
【24h】

Synthesis of High Performance Polycarboxylate Superplasticizer through Redox Initiation System and its Application in Concrete

机译：通过氧化还原发起系统合成高性能多羧酸酯超塑料化剂及其在混凝土中的应用

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A high performance polycarboxylate superplasticizer (PCE) was successfully synthesized by a polymerization reaction among acrylic acid (AA), maleic anhydride (MA) and isopentenyl polyethylene glycol (IPEG) through redox initiation system. The composition and amounts of initiation system, and the ratio of monomers were investigated respectively. The proportion of IPGE: MA: AA: sodium methallyl sulfonate (SMAS): ammonium persulfate (APS): ascorbic acid (ASA) was determined as 1: 3: 1.5: 0.3: 0.015:0.012. Moreover, the effect of polymerization temperature on PCE's cement paste fluidity was studied. The results showed that the cement pastes mixed with PCE synthesized at 10°C, 20°C and 30°C respectively exhibited better fluidity performances than that mixed with common PCE. The Fourier Transform Infrared Spectroscopy (FTIR) measurements were used for the structural characterization. The results confirmed the occurrence of polymerization reaction and the ideal structure. Furthermore, the application performances of PCE synthesized through redox initiation system in mortar and concrete were tested. The results showed that the water reducing rate of PCE in mortar and the slump performances of PCE in concrete were better than those of the common commercial PCEs. This synthesis method presents the great research value and application prospect for the PCE preparation in concrete engineering.
机译：通过氧化还原引发系统成功通过丙烯酸（AA），马来酸酐（MA）和异戊烯基聚乙二醇（Ipeg）中的聚合反应成功地合成了高性能的多羧酸酯超塑料剂（PCE）。研究了起始系统的组成和量，以及单体的比例进行了研究。 iPGE的比例：MA：AA：甲磺酸钠（SMA）：过硫酸铵（APS）：抗坏血酸（ASA）测定为1：3：1.5：0.3：0.015：0.012。此外，研究了聚合温度对PCE的水泥膏流动性的影响。结果表明，与10℃，20℃和30℃合成的PCE混合的水泥浆料分别表现出比与普通PCE混合的流动性表现更好。傅里叶变换红外光谱（FTIR）测量用于结构表征。结果证实了聚合反应的发生和理想结构。此外，测试了通过砂浆和混凝土中的氧化还原发起系统合成的PCE的应用性能。结果表明，混凝土中PCE中PCE的降水速率优于共同的商业PCE。该合成方法介绍了具体工程中PCE准备的巨大研究价值和应用前景。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号