Use of ground clay brick as a pozzolanic material to reduce the alkali-silica reaction

被引:114
作者
Turanli, L
Bektas, F
Monteiro, PJM [1 ]
机构
[1] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
[2] Middle E Tech Univ, Dept Civil Engn, TR-06531 Ankara, Turkey
关键词
ground clay brick; alkali-aggregate reaction; pozzolan;
D O I
10.1016/S0008-8846(03)00101-7
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The objective of this experimental study was to use ground clay brick (GCB) as a pozzolanic material to minimize the alkali-silica reaction expansion. Two different types of clay bricks were finely ground and their activity indices were determined. ASTM accelerated mortar bar tests were performed to investigate the effect of GCB when used to replace cement mass. The microstructure of the mortar was investigated using scanning electron microscopy (SEM). The results showed that the GCBs meet the strength activity requirements of ASTM. In addition, the GCBs were found to be effective in suppressing the alkali-silica reaction expansion. The expansion decreased as the amount of GCBs in the mortar increased. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1539 / 1542
页数:4
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