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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Alkali Etching Tests on Concrete Aggregates
Author(s): Willard H. Parsons and Herbert Insley
Publication: Journal Proceedings
Volume: 40
Issue:
Appears on pages(s): 229-244
Keywords:
Date: 1/1/1944
Abstract:A test for determining the reactivity of an aggre- gate with high-alkali cements is described, which consists of microscopic examination of polished sur- faces of rocks and minerals after etching in various alkaline hydroxide and sulfate solutions. Pure opal, opaline chert and opaline limestone are readily etched, while volcanic glass, certain feldspars, chal- cedony, calcite, and dolomite are slightly etched under some of these test conditions. Photomicrographs of etched rocks and minerals are included.
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