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A comparison of different methods of detection of alkali-Silica reactivity of aggregates

โœ Scribed by T. Taguchi; S. Chatterji; M. Kawamura

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
220 KB
Volume
23
Category
Article
ISSN
0008-8846

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โœฆ Synopsis

In this note the results of a simultaneous testing of ii slightly reactive Japanese sand types, by the JIS Chemical and Mortar Bar Methods, and the Danish NaCI Bath and Simple Chemical Methods are reported. The results show that the Danish NaCI Bath Method is more severe than the JIS Chemical and Mortar Bar Methods. This is in spite of the fact that in the JIS Mortar Bar Method the alkali content of the cement is raised to 1.2% Na20 equivalent. The results also show that the Simple Chemical Test Method could be performed on Japanese sand types. More work will have to be done before an acceptance criterion for the Simple Chemical Test Method could be estimated for Japanese sand types.

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