The influences of matrix and steel fibre tensile strengths on the fracture energy of high-strength concrete

作者：Sahin Yusa; Koksal Fuat^*

来源：Construction and Building Materials, 2011, 25(4): 1801-1806.

DOI：10.1016/j.conbuildmat.2010.11.084

• High-strength concrete
• Steel fibre
• Fracture energy
• Characteristic length
• Bending strength

This research discusses the effects of both steel fibre and matrix strengths on fracture energy of high-strength concrete. The variables of experimental study were water/cement ratio, steel fibre strength and steel fibre volume fraction. The water/cement ratios of 0.35, 0.45 and 0.55, and steel fibres with a tensile strengths of 1100 and 2000 MPa were used and volume fractions of steel fibre were 0.33%, 0.67% and 1%. Mechanical properties, fracture energy and characteristic length of concretes were investigated.
Significant influences of matrix and fibre tensile strengths on the fracture energy and the characteristic length are noted.

• 出版日期2011-4