In situ identification of ASR [alkali-silica reaction] products in concrete

For rapid, in situ identification of the product of deleterious alkali-aggregate reaction (alkali-silica-gel or ASG) the authors recommend washing the specimen in water, soaking in 10% uranyl acetate solution, rewashing, and immediately examining the surface under uv light. Dull green fluorescence s...

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Veröffentlicht in:Cement and concrete research 1988-01, Vol.18 (3), p.455-463
Hauptverfasser: Natesaiyer, K, Hover, K C
Format: Artikel
Sprache:eng
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Zusammenfassung:For rapid, in situ identification of the product of deleterious alkali-aggregate reaction (alkali-silica-gel or ASG) the authors recommend washing the specimen in water, soaking in 10% uranyl acetate solution, rewashing, and immediately examining the surface under uv light. Dull green fluorescence shows spots of ASG. This test has the potential for becoming a standard method for determining aggregate reactivity.
ISSN:0008-8846