Condition Survey of Concrete Structures Built With Potentially Alkali-Reactive Limestone Aggregates from the Quebec City Area (Quebec, Canada)

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Title: Condition Survey of Concrete Structures Built With Potentially Alkali-Reactive Limestone Aggregates from the Quebec City Area (Quebec, Canada)

Author(s): B. Fournier, M. A. Berube, and D. Vezina

Publication: Special Publication

Volume: 100

Issue:

Appears on pages(s): 1343-1364

Keywords: aggregates; alkali-aggregate reactions; concrete durability; deterioration; limestone; petrography; surveys; tests; General

Date: 4/1/1987

Abstract:
Reports the results from the condition survey of about 300 concrete structures of the Quebec City area, with a significant proportion of them showing signs of deterioration commonly associated with alkali-aggregate reactions. Each component of these structures has been described according to the more common defects affecting concrete structures and to exposure conditions. Core samples have been taken in about 70 structures and investigated for physico-mechanical properties and air and chloride contents. Each sample has also suffered a petrographic examination. This study has been done to determine the present condition of these structures, to recognize the occurrence and the severity of the major defects affecting them, and mainly to establish the influence of the alkali-aggregate reactivity on deterioration.