Durability of ultra-high performance fibered concretes made from local raw materials in two aggressive media of hydrochloric acid and barium sulphates

Abstract

The durability of ultra high performance fiber-reinforced concrete (UHPFC) made from local raw materials has been studied in this manuscript. An experimental study was carried out on the best variants of UHPFC using finely ground dune sand as ultrafine. The UHPFCs studied were developed from Portland cement (PC), dune sand (DS), fine sand (FS), metal fibers (MF) and superplasticizer additive (SP). The results show that it is possible to manufacture a more ductile and durable fiber concrete of 41.96 and 35.28 MPa for flexural tensile and 95.5 and 85.36 MPa for compressive strength for UHPFCs made from dune sand and immersed respectively in two chemical solutions concentrated at 5M hydrochloric acid and barium sulfate for one year. The manufacture of a concrete based on local raw materials with good mechanical properties and durability can reduce the consumption of cement.