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Quantifying and mitigating alkali-aggregate reactivity risk in AAROC aggregate resources

Quantifying and mitigating alkali-aggregate reactivity risk in AAROC aggregate resources
量化和减轻 AAROC 骨料资源中的碱骨料反应风险
批准号：
477625-2014
负责人：
Nehdi, Moncef
金额：
$1.68万
依托单位：
University of Western Ontario
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2014
资助国家：
加拿大
项目状态：
已结题
起止时间：
2014-01-01 至 2015-12-31
来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=565865
关键词：
Quantifyingmitigatingalkaliaggregatereactivity

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中文摘要
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英文摘要
Alkali-aggregate reactivity is a widespread problem, inflicting serious damage to a large number of concrete structures in Canada. The problem occurs when aggregates having characteristics conducive to reaction with alkalies are used in concrete made with ordinary portland cement incorporating a significant content of alkalies. The reaction initiates when concrete is exposed to moisture, resulting in expansion and cracking, normally observed several years after field exposure.
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