Kirikoshi and N. Nomura Building Science, Tohoku University, Sendai, Design, Shimizu Co., Tokyo, Japan paper, influence of aggregates on tension softening diagram of concrete is presented. Compact tension tests were carried out on concrete the load versus CMOD curves were…
Kirikoshi and N. Nomura Building Science, Tohoku University, Sendai, Design, Shimizu Co., Tokyo, Japan paper, influence of aggregates on tension softening diagram of concrete is presented. Compact tension tests were carried out on concrete the load versus CMOD curves were analyzed by a poly-linear ~" ........ u. ....... 'U••• ...... ..,u .• .._,,... Concrete specimens containing aggregates of two types five different sizes were tested. In addition, two types of specimens were tested to study the influence of the thickness. Detailed cracking behavior was also observed by means of a unique x-ray .. ..,...., •• U .. •4"-''"" using contrast medium. The main conclusion of this paper is not the of aggregates but the shape influence the characteristics of fracture process zone and the tension softening diagram. Keywords: Microcracking, fracture process zone, tension softening technique, aggregate size, aggregate type. numerical simulation of nonlinear behavior concrete structures to cracking, fracture mechanics has been widely used. The constitutive to describe the behavior of concrete under tension, however, is sometimes too simple. It is no doubt the energy consumption in an crack system is the most important concept by which fracture process zone microcracked zone et al. 1976).