Enhance hydration properties of steel slag using grinding aids by mechanochemical effect

被引：81

作者：

Zhu Xi ^{[1
]}

Hou Haobo ^{[1
]}

Huang Xuquan ^{[1
]}

Zhou Min ^{[1
]}

Wang Weixing ^{[1
]}

机构：

[1] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 29卷

关键词：

Steel slag; Grinding aids; Mechanochemical effect; Hydration;

D O I：

10.1016/j.conbuildmat.2011.10.064

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Basic oxygen furnace steel slag is a kind of cementitious material with low activity and hard for grinding. The objective of this work was to validate specious grinding aids F1 made in lab which was effective for the grinding of steel slag, thus enhancing the hydration properties. By using 0.05% F1, the Blaine value of steel slag was added up to 361.3 m(2)/kg, the portion of size which is normally smaller than 30 mu m was increased and its particle size distribution turned homogeneous. The exothermic rate was increased after 8 h, and the enhancement of hydration properties was more obvious at early age. More calcium aluminum hydrate was generated at 3 days, and the pastes structure tissue became dense after 28 days. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：476 / 481

页数：6

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