ABSTRACT
One of the concrete that is becoming famous for its usage nowadays is nanoconcrete and our paper deals with the fact that nanomaterials (like nano-SiO2 & nano-TiO2) when added in optimized proportions to a standard M-40 Grade concrete improves its both fresh and hardened properties (both short term & long term).The results simply corroborated the fact that for nano concrete the workability increased by more than 90% w.r.to controlled M-40 Grade concrete. The compressive strength of nano concrete with nano-SiO2 gave a strength gain of more than 24% at 28 days and more than 18% at 90 days while that of & nano-TiO2 gave a strength gain of more than 9% at 28 days and more than 6% at 90 days all under ordinary curing conditions. However, under exposure to MgSO4 & MgCl2 the standard concrete specimens gave a greater crushing strength when compared with both the nanoconcretes, the reason of which is not clear.
