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Title: HANDBOOK FOR THE IDENTIFICATION OF ALKALI-SILICA REACTIVITY IN HIGHWAY STRUCTURES
Accession Number: 00621083
Record Type: Component
Abstract: This handbook is designed to help highway engineers and bridge inspectors spot and fix this very damaging and difficult-to-detect problem, namely, alkali-silica reactivity (ASR). The 49-page handbook provides for the field identification of ASR in portland cement concrete structures, such as highway pavements and bridges. ASR occurs when silica or silicates in aggregates react with alkali in the cement to form a gel-like substance which absorbs water and eventually cracks the concrete. Some areas of the country are more susceptible to this than others. Accurate detection of ASR is the key to choosing the best rehabilitation strategy. The proper diagnosis and assessment of the problem is covered.
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Report/Paper Numbers: SHRP-C-315
Corporate Authors: Strategic Highway Research Program National Research Council, 2101 Constitution Avenue, NW Pagination: n.p.
Publication Date: 1991-3
Serial: TRT Terms: Identifier Terms: Uncontrolled Terms: Subject Areas: Bridges and other structures; Highways; Pavements; I23: Properties of Road Surfaces
Files: TRIS, TRB
Created Date: Apr 30 1992 12:00AM
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