The macroscopic mechanical behaviour of concrete, observed in multiaxial compression tests, is classified according to four typical stages in crack formation. At these stages, the behaviour is analysed at three different scale levels. It appears that most of the observed macroscopic features can be explained by quite simple phenomena when the concrete structure is analysed at the level of aggregate grains embedded in a matrix of cement paste. Based on this analysis, a 2D meso-mechanical model is presented aiming at describing the pre-peak mechanical behaviour of concrete in multiaxial compression tests.
|Number of pages||22|
|Publication status||Published - 1998|