Behaviour of reinforced concrete beams made with recycled and waste materials under long-term loading

摘要: Concrete is the second most-used material in the world after water and its production places a large strain on natural resources and the environment. This has prompted the search for sustainable alternatives to traditional Portland cement concrete. Among these green concretes", most promising, in the case of Serbia, are recycled aggregate concrete (RAC) and high-volume fly ash concrete (HVFAC).