Mechanical properties of reactive powder concrete (RPC)‎ with mineral admixture

Abstract EN

Reactive powder concrete (RPC) is a special type of concrete, it is rather a mortar than an actual concrete mixture, because traditional coarse and fine aggregate are replaced by very fine sand with particle size in range of (150-400) μm.

In the present experimental investigation, compressive strength, splitting tensile strength and flexural strength of plain reactive powder concrete and reactive powder concrete reinforced with 1% and 2% steel fiber are compared, by using local available material and curing in 20°C and 80°C, and the experimental study was carried out on a two sets of samples.

Each set consisted of (54) cubes of (50 × 50 × 50mm), (18) cylinder of (100 × 200 mm) and (18) prism of (50 × 50 × 300 mm).

The results show that the maximum compressive strength is 74 MPa with 2 % steel fiber and curing in 20°C.

The addition of steel fiber by 1 % and 2 % increased the compressive strength, splitting tensile strength and flexural strength.