Long-term properties of green concrete: testing at the material and structural level

Abstract

The environmental problems posed by the production of concrete can be solved namely by using green concrete produced with recycled and waste materials. This study intends to present results on the long-term properties of concrete produced with 100% coarse recycled concrete aggregate and concrete produced with 50% of class F fly ash in total cementitious materials and compare them with a companion natural aggregate concrete. The three concrete mixes were tested at the material level where shrinkage and creep were tested for 700 days on concrete prisms, and at the structural level where deflections, strains, and cracks of simply supported reinforc