Influence of Plastic Aggregate and Curing Condition on the Mechanical Properties of Concrete Containing Silica Fume in Marine Environments

In this study, Influence of plastic aggregate and curing condition on the mechanical properties of concrete containing silica fume has been investigated. Concretes included silica fume (SF) as a cement replacement levels of 10% and 15% and contain plastic waste aggregate (PWA) as a natural aggregate (NA) replacement. In this study plastic fine aggregate (PF) and plastic coarse aggregate (PC) are replaced at NA. The w/b ratio and total cementitious materials content were kept constant for all mixes at 0.50 and 350 kg/m3 respectively. Concrete mixes were evaluated for compressive and tensile strengths at 7, 28 and 90 days in two different environment: a) laboratory environment (LE) and b) out (Marine) environment (ME/OE). The results show that Concretes containing silica fume compressive strength decreases with increasing of PWA as a replacement and outdoor condition is more important for surveying curing position.