Abstract
The strength of cement mortar in 90 dates all decreased with replacement of PSP or fly ash increasing, but the decreasing trends at 90 dates were clearly less than that at early dates. At 90 dates, the strength of cement mortar with replacement of 40% to 60% PSP was higher than that of cement with fly ash. When replacement of PSP was between from 20% to 50%, the strength of mortar at 90 dates was basically same. So, PSP also can be used as mineral admixture with replacement levels of 20% to 50% in dam concrete. The strength of mortar mixed together with fly ash and PSP was greater than that of mortar mixed only with fly ash or PSP. The influence of PSP and fly ash blending proportion on flexure and compressive strength was not significant. The effect of PSP fineness on early strength was little, but that on later strength was slight.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call