The modification of calcium lignosulfonate and its applications in cementitious materials

被引：9

作者：

Li, Cheng ^{[1
]}

Pan, Qiwei ^{[1
]}

Zhang, Jin ^{[1
]}

Qin, Xiaojuan ^{[1
]}

Wang, Zhenfei ^{[1
]}

Liu, Lijuan ^{[1
]}

Pei, Meishan ^{[1
]}

机构：

[1] Jinan Univ, Sch Chem Engn, Shandong 250022, Peoples R China

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2007年 / 28卷 / 08期

基金：

中国国家自然科学基金;

关键词：

steric hindrance effect; surface activity; foaming ability; air content; mechanical strength;

D O I：

10.1080/01932690701669573

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An azo calcium lignosulfonate (ACL) is synthesized by the coupling of a diazonium salt made from p-aminobenzene sulphonic acid and calcium lignosulfonate (CL). The surface activity and foaming ability of ACL are evaluated; also the performances of ACL modified mortars such as fluidity and mechanical strength are investigated. Test results show that ACL has higher surface tension and lower foaming ability compared with CL, the disperse ability of ACL is stronger than that of CL at higher dosage than 0.5%, the flexural and compressive strength of ACL modified mortars are superior to that of CL modified mortars.

引用

页码：1205 / 1208

页数：4

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