MAGAZINE OF CONCRETE RESEARCH, vol.64, no.8, pp.727-735, 2012 (SCI-Expanded)
In this study, the effect of cement type, cement dosage, superplasticiser type and mineral admixture on the compressive strength of high-strength concrete (HSC) was investigated experimentally and statistically. The concrete mixtures were prepared using two different cement types (ordinary Portland cement and white Portland cement), two different cement dosages (450 and 550 kg/m(3)), two different superplasticisers (polycarboxylate based and modified polycarboxylate based) and two different mineral admixtures (silica fume and fly ash). After being cured under the standard conditions for 2, 7, 28 and 90 days, the specimens were tested for the compressive strength. The Taguchi method was used to determine the optimum conditions and to reduce the number of experiments. Five control factors such as time, cement type, cement dosage, superplasticiser and mineral admixture were used for this study. The results showed that the parameter that most influenced the compressive strength properties of HSC was time.