Assessing the Effects of Mechanical Preventive Measures on Alkali-Silica Reaction Expansion with Accelerated Mortar Bar Test

2014-11-01
Musaoglu, Orhan
TURANLI, LUTFULLAH
Sarıtaş, Afşin
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.

Citation Formats
O. Musaoglu, L. TURANLI, and A. Sarıtaş, “Assessing the Effects of Mechanical Preventive Measures on Alkali-Silica Reaction Expansion with Accelerated Mortar Bar Test,” JOURNAL OF TESTING AND EVALUATION, vol. 42, no. 6, pp. 1520–1529, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35111.