Building Forensics International Photos Gallery

The Following gallery of photos are provided to show examples of the Alkali-Silica Reaction (ASR) which is the reaction between the alkalis (sodium and potassium) in Portland Cement and certain siliceous rocks or minerals, such as opaline chert, strained quartz, and acidic volcanic glass, present in some aggregates; the products of the reaction may cause abnormal expansion and cracking in concrete in service. The following photos are various examples of Alkali-Silica Reaction (ASR) in concrete in service.

Sulfate Attack
Sulfate Attack

Building Forensics International - Concrete Consulting

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Concrete Consulting Internal Sulfate Attack
Concrete Consulting Internal Sulfate Attack
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Internal Sulfate Attack Photo
Internal Sulfate Attack Photo

Concrete Consulting

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Alkali-Silica Reaction (ASR)
Alkali-Silica Reaction (ASR)

Concrete Consulting-Example of Alkali-Silica Reaction (ASR) in concrete

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Advanced ASR in Concrete Core
Advanced ASR in Concrete Core

Concrete Consulting-Example of Advanced Alkali-Silica Reaction in a Concrete Core Sample

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ASR Present in Concrete Wall
ASR Present in Concrete Wall

Concrete Consulting-Example of Advanced ASR in a Section of a Concrete Wall

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Photo by Steven G. Provenghi S.E.
Photo by Steven G. Provenghi S.E.
Photo by Steven G. Provenghi S.E.