A comparative study between ASTM C1567 and ASTM C227 to mitigate alkali‐silica reaction. (7th October 2018)

• Record Type: Journal Article
• Authors: Saha, Ashish K.
• Is Part Of: Structural concrete. Volume 20:Number 1(2019)
• Page Start: 420
• Page End: 427
• Publication Date: 2018-10-07
• Subjects: accelerated mortar bar method -- alkali‐silica reaction -- ASTM C1567 -- ASTM C227 -- ferronickel slag -- fly ash -- pozzolanic reaction -- tensile strength; Reinforced concrete -- Periodicals; 624.1834
• DOI: 10.1002/suco.201800127
• Languages: English
• ISSNs: 1464-4177

Abstract

Abstract : The primary objective of this study was to evaluate the two different widely adopted test methods such as american society for testing and materials (ASTM) C1567 "accelerated mortar bar method" and ASTM C227 "mortar bar method" to identify the alkali‐silica reaction (ASR) of ferronickel slag fine aggregates. The ASR mitigation measure was assessed by the application of supplementary cementing material such as fly ash. During the experimental investigation visual inspection, mortar bar expansion and tensile strength measurements were evaluated. The test results point out that mortar bar method was unsuccessful to identify the ASR due to significant alkali leaching during the experiment. On the other hand, accelerated mortar bar method was successful to identify ASR and able to determine the safe dosage of fly ash to mitigate this deleterious expansion.