Mechanical Properties of Reactive Powder Concrete (RPC) with Mineral Admixture-ENG

AbstractReactive 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)m. 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 20C and 80C, and the experimental study was curried out on a two sets of samples. Each set consisted of (54) cubes of (505050mm), (18) cylinder of (100200mm) and (18) prism of (5050300mm). The results show that the maximum compressive strength is 74 MPa with 2% steel fiber and curing in 20C. The addition of steel fiber by 1% and 2%increased the compressive strength, splitting tensile strength and flexural strength.Keywords: reactive powder concrete, steel fibre, compressive strength, flexural strength, tensile strength