Impact of Hot Weather Conditions on the Performance of Supplementary Cementitious Materials Concrete

This study aimed to investigate the strength and permeability properties of binary ternary systems for producing concrete mixes with a cure time 7, 28, 90, 180 days under high ambient temperatures (about 35–45 °C). The key variables were silica fume (SF) fly ash (FA) water-to-binder ratio (0.18 0.55) needed cementitious normal ultra-high-performance (UHPC). tests conducted BS 1881 ASTM C 1202. Further, parametric was using isoresponse curves predictive models developed in study. After 28 5% SF, SF-binary showed significant gains compressive strength, while 10% 15% no gains. With water–binder 0.55, slightly higher than ratios 0.16, 0.25, 0.40. A SF addition 0.25-based reduced by 70%, which marginal 15%. However, content did not significantly affect 0.55 SF-FA system UHPC resulted negligible permeability. model, predicted–tested between 0.96 1.01. pattern changes at 6% content, adding increases significantly. analysis revealed that development deteriorates after 120 regardless whether is added or