ひび割れ

[V-484] A consideration on the strain increase of concrete due to the occurrence of micro cracks around aggregate

*田中 達大²、田中 遼³、熊野 知司¹ (1. 摂南大学、2. 摂南大学大学院、3. 五洋建設（株）)

Keywords:Coarse aggregate, mortar, Fine cracks, Poisson's ratio

In the stress-strain relationship of concrete, it has been known that nonlinear behavior is shown from relatively low stress, and it is thought that the effect of micro cracks around aggregate is large. In this research, as a first step to evaluate the nonlinear behavior of the stress-strain relationship of concrete, stress analysis is performed using Poisson's ratio and elastic modulus as parameters, and strain increase of concrete due to micro cracks around aggregate is estimated. It was to be.