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Assessing the Effects of Mechanical Preventive Measures on Alkali-Silica Reaction Expansion with Accelerated Mortar Bar Test
Date
2014-11-01
Author
Musaoglu, Orhan
TURANLI, LUTFULLAH
Sarıtaş, Afşin
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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This paper presents a modification to the apparatus of the mortar bar test of ASTM C490 in order to assess and compare the influence of mechanical preventive measures in reducing alkali-silica reaction (ASR) expansion in concrete with respect to the traditional measures. For this purpose, reinforced mortar specimens with or without pre-stressing force applied were examined and the effects of the reinforcement ratio and pre-stressing force on ASR-induced expansion and cracking were studied through the accelerated mortar bar test method of ASTM C1260. The mechanical preventive measure was also compared with a traditional preventive measure by using fly ash. The results show that reinforcement and pre-stressing force play a role in limiting expansion and cracking due to ASR and that the developed test apparatus in this study can be used for measurements.
Subject Keywords
Mechanical Engineering
,
General Materials Science
,
Mechanics of Materials
URI
https://hdl.handle.net/11511/35111
Journal
JOURNAL OF TESTING AND EVALUATION
DOI
https://doi.org/10.1520/jte20130228
Collections
Department of Civil Engineering, Article