In this research, effects of silica Nano particles on the important properties of self-compacting-concrete (SCC) containing Leca, Perlite and Scoria light weight aggregates have been investigated. Different amounts of silica Nano particles have been added to the lightweight-self-compacting-concrete (LWSCC) mixtures, and the properties of the LWSCCs at the fresh and also the hardened state have been experimented. The obtained results show that adding the Nano particles of silica decays the performance of the fresh concrete. Nevertheless, adding these particles improves tensile, compressive, and flexural strength of LWSCCs, as well as strength of LWSCCs in acidic medium and decrease water penetrability of LWSCCs.

在这项研究中，研究了二氧化硅纳米颗粒对含Leca，珍珠岩和Scoria轻质骨料的自密实混凝土（SCC）重要性能的影响。已经向轻质自密实混凝土（LWSCC）混合物中添加了不同数量的二氧化硅纳米颗粒，并且对LWSCC在新鲜状态和硬化状态下的性能进行了实验。所得结果表明，添加二氧化硅的纳米颗粒会降低新鲜混凝土的性能。但是，添加这些颗粒可改善LWSCC的拉伸，压缩和弯曲强度，以及LWSCC在酸性介质中的强度，并降低LWSCC的水渗透性。