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Alkali-silica reactions (ASR) in concrete and aggregates

Nisperos, A.G.

Alkali-silica reactivity (ASR) is a major cause of deterioration of highway structures, pavements, bridges, and airport runways in the United States, particularly in the Western States such as California, Colorado, Idaho, Nevada, and New Mexico. With the increasing difficulty in locating high quality of aggregate sources due to environmental regulations and restrictions, it is imperative to understand its: (a) detection, (b) test methods of identifying potentially reactive aggregates for use in concrete and related construction materials, and (c) general methods used in preventing ASR problems. Case histories are described to illustrate ASR damage in concrete structures utilizing petrographic techniques and analysis.

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Alkali-silica reactions (ASR) in concrete and aggregates

Nisperos, A.G.

Alkali-silica reactivity (ASR) is a major cause of deterioration of highway structures, pavements, bridges, and airport runways in the United States, particularly in the Western States such as California, Colorado, Idaho, Nevada, and New Mexico. With the increasing difficulty in locating high quality of aggregate sources due to environmental regulations and restrictions, it is imperative to understand its: (a) detection, (b) test methods of identifying potentially reactive aggregates for use in concrete and related construction materials, and (c) general methods used in preventing ASR problems. Case histories are described to illustrate ASR damage in concrete structures utilizing petrographic techniques and analysis.

Alkali-silica reactions (ASR) in concrete and aggregates

Nisperos, A.G.

Alkali-silica reactivity (ASR) is a major cause of deterioration of highway structures, pavements, bridges, and airport runways in the United States, particularly in the Western States such as California, Colorado, Idaho, Nevada, and New Mexico. With the increasing difficulty in locating high quality of aggregate sources due to environmental regulations and restrictions, it is imperative to understand its: (a) detection, (b) test methods of identifying potentially reactive aggregates for use in concrete and related construction materials, and (c) general methods used in preventing ASR problems. Case histories are described to illustrate ASR damage in concrete structures utilizing petrographic techniques and analysis.

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Title:

Alkali-silica reactions (ASR) in concrete and aggregates

Additional title:

Alkail-Silica-Reaktion in Beton und Zuschlagstoffen

Contributors:

Nisperos, A.G. (author)

Published in:

International Conference on Cement Microscopy, 25 ; 1-77

Publication date:

2003

Size:

77 Seiten, 19 Bilder, 119 Quellen

Type of media:

Conference paper

Type of material:

Storage medium

Language:

English

Keywords:

Alkali-Silica-Reaktion , Wasserabbinden von Zement , Versagen , Versagensart , Schadenursache , Schadenverhütung , Fallstudie , Amerika , Bauwesen , Straßenbau , Testverfahren , Zuschlagstoff , Werkstoffeignung

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