Supplementary cementitious materials: Strength development of self-compacting concrete under different curing temperature

摘要

Three mixes were provided namely normal weight self-compacting concrete with Portland cement as a control (NWSCC-PC), lightweight self-compacting concrete with ground granulated blast furnace slag concrete (LWSCC-GGBS) and lightweight self-compacting concrete with limestone powder concrete (LWSCC-LSP). There were three cubes of each mix for each testing age, which were cured at 20,30,40 and 50°C to investigate the effect of curing temperature on strength development. They were tested at ages 0.125,025,0.5, 1,2,4,7,14 and 28 days. The results showed that the strength development of self compacting concrete strongly affected by curing temperature as it does with normal concrete. At early ages, the strengths development of concrete cured at higher curing temperature, were faster than that of concrete cured at lower temperature. The strength development of concretes cured at lower temperature, however, have higher strength at later ages.