A Review - Effects of temperature on fracture toughness of concrete
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 5
Abstract
In this paper an experimental investigation on the variation of residual fracture toughness of plainconcrete subjected to different elevated heating temperatures is described.A total of 16 beam specimens with uniform size of 65mm x85mm x365mm were prepared, half of which had precast initial notch of depth equal to 0.10 times the beam depth at midspan of the beams and the rest of which had precast initial notch of depth equal to 0.25 times the beam depth. The beam specimens were heated to constant temperatures of 300℃, 600℃ and 900℃ respectively. After cooling, half of the specimens were subjected to three-point bending test and the rest of them were subjected to four point bending test and fracture toughness values were determined for failure loads. The results show that the fracture toughness of concrete is influenced by elevated temperature.The fracture toughness values for various elevated temperatures were compared with the values obtained for room temperature which serve as a reference.
Authors and Affiliations
A. Sethupalani, N. Sakthieswaran, G. Shiny Brintha, O. Ganesh Babu
Keywords
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