Abstract: “One of applications of sulfur in building industry is producing sulfur concrete (SC). High resistance, in acid environments, gaining high and rapid resistance, not using water during preparation, the possibility of recycling and low permeability can be pointed out as the most significant specifications of sulfur concrete .The present study investigates the role of acid on mechanical resistances including compressive and tensile strength on modified and none-modified sulfur concrete .The implications indicate that sulfur concretes are much more resistant against acids as compared with regular concretes .economically, It can be referred that if preparation of SC becomes more easier, it can replace regular concrete in a number of regular hydraulic projects.”

Keywords: sulfur concrete, Mechanical resistance, durability, erosive environment