Influence of the physicochemical properties of Portland cement on the strength of reactive powder concrete / Tomasz Zdeb // Procedia Engineering [Dokument elektroniczny]. – 2015, Vol. 108, s. 419-427 ... więcej

Influence of the physicochemical properties of Portland cement on the strength of reactive powder concrete / Tomasz Zdeb // Procedia Engineering [Dokument elektroniczny]. – 2015, Vol. 108, s. 419-427 : fot., tab., wykr. – Tryb dostępu: http://www.sciencedirect.com/science/article/pii/S1877705815011200. – Bibliogr. 19 poz., Abstr. – Mat. konf.: 7th Scientific-Technical Conference on Material Problems in Civil Engineering MATBUD'2015, Cracow, Poland, 22-24.06.2015. – doi: 10.1016/j.proeng.2015.06.166. – ISSN 1877-7058

The paper deals with analysis of mechanical properties and microstructure of reactive powder concretes RPC manufactured on the basis of three different industrial Portland cements diversified in terms ... więcej

The paper deals with analysis of mechanical properties and microstructure of reactive powder concretes RPC manufactured on the basis of three different industrial Portland cements diversified in terms of strength class (42.5 and 52.5), chemical and mineral composition as well as specific surface area. All developed materials were subjected to three different hydrothermal curing conditions. The test results confirm the fact that factors influencing consistency of the concrete mixture the most is chemical and mineralogical composition of binder. While, it appears that in the case of mechanical properties, the factor which plays a crucial role is specific surface area of cement. For one of analyzed cements, due to its favourable chemical and mineralogical composition, it was possible to limit the value of W/B ratio up to 0.17, without harming properties of concrete mixture. However, this fact has not contributed to the spectacular increase in strength with respect to materials based on cement with the largest surface area, where the minimum realizable W/B ratio was 0.20.