fracture properties of the high-performance concrete (HPC) having a 260 mm, of 680 mm, 28-day compressive strength of and modulus of elasticity of 25 .1 were studied. The size- was used for examining the fracture properties. Experimental results show that…
fracture properties of the high-performance concrete (HPC) having a 260 mm, of 680 mm, 28-day compressive strength of and modulus of elasticity of 25 .1 were studied. The size- was used for examining the fracture properties. Experimental results show that the size of coarse aggregate and the amount of aggregate have positive effects on the increase of its fracture properties. fracture energy Gy of the HPC was found to be 68.3 Nim. same volumetric amount of coarse aggregate in the HPC was replaced by the fine aggregate, the fracture energy Gy was dropped to the 22.5 Nim. The fracture energies of the hardened binder paste and cement paste range 3 .4 to 3. 5 Nim. Aggregate, fracture property, high-performance concrete. ~1 ),_ 1 1 addition to three major conventional ingredients concrete, i.e., Portland cement, fine and coarse aggregates making concrete needs to mineral admixture such as silica fume, furnace slag, etc., and chemical admixture such as superplasticizer, etc., order to have a high workability without segregation 1997, Aitcin et al. 1993, Gutierrez et 1996, There is no definition n~r-t-c,-,JrJ.111TITTH1''--"£> """"'-J''"''" .... , .. , an with an initial slump of more compressive strength of above 5 5 MPa can a workability high demanding applying to the constructions, understanding of its fracture properties is designer to use the fracture criteria for the prediction of propagation of concrete structure under certain J.VLILU'.Hc•h purpose · study is aiming at the ...... ,.,. .......... u-,.,. ,,... ... ,... .... , 0 r1r• 0 " of concrete based on 2. concrete crack energy Gr of the concrete can "'"-«" .......... ",.. .. [Bazant et al.