| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 259720 | Construction and Building Materials | 2011 | 6 Pages |
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.
Research highlights► We investigate effects of steel fibre and matrix strengths on concretes. ► Matrix and fibre strengths must be compatible to obtain maximum fracture energy. ► Tensile strength of steel fibre is important in mix design of fibre reinforced concrete. ► Optimisation is required for a good performance of steel fibre reinforced concrete.
