Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6427012 | Cold Regions Science and Technology | 2013 | 5 Pages |
The aim of this study is to characterize the behavior of air-concrete under triaxial compression with stress ratio α2 = Ï2 : Ï3 = 1 : 1, while changing stress ratio α1 = Ï1 : Ï3 from 0 to 0.2 after different cycles of freeze-thaw. 100 mm Ã 100 mm Ã 100 mm concrete cubes were tested in the experiment. Based on the experiment data, the influence of the stress ratio α1 = Ï1 : Ï3 and the number of freeze-thaw cycles on the ultimate compressive strength Ï3 are analyzed respectively. A failure criterion expressed in terms of octahedral stress with consideration of the influence of the freeze-thaw cycles is proposed.
⺠Mechanical properties ⺠Air-entrained concrete ⺠Freeze-thaw cycles ⺠Triaxial compression ⺠Failure criteria