Study of autoclave methods for evaluating the alkali-silica reactivity of aggregates

被引：2
|
作者：
Liu, Chih-Chien [1 ]
Lee, Chau [2 ]
Wang, Wei-Chien [2 ,3 ]
机构：
[1] ROC Mil Acad, Dept Civil Engn, Fengshan 830, Taiwan
[2] Natl Cent Univ, Dept Civil Engn, Tao Yuan 320, Taiwan
[3] Chung Yuan Christian Univ, Dept Civil Engn, Chungli 320, Taiwan
来源：
JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS | 2011年 / 34卷 / 05期
关键词：
autoclave; alkali-aggregate reaction; acceleration; ACCELERATED TESTS; EXPANSION;
D O I：
10.1080/02533839.2011.577604
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This research focuses on the feasibility of employing the mortar bar autoclave test (MBAT) and the concrete prism autoclave test (CPAT) for the evaluation of alkali-silica reactivity in 22 aggregates. ASTM C289, C227, C1293, AFNOR P 18-588, and JIS A 1804 tests were also conducted for purposes of comparison. Expansions of 0.05% for the MBAT, and the 0.04% CPAT method are suggested as criteria for the differentiation of non-reactive aggregate. Without underestimation, more than 90% of the results obtained from the MBAT were consistent with the ASTM tests. Each result obtained by the CPAT was similar to the ASTM tests. The ASTM C289, MBAT, and CPAT methods are recommended as effective tools for identifying non-reactive aggregate in routine or screening tests.
引用
收藏
页码：663 / 670
页数：8
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