Effect of Nanoscale Materials in Engineering Properties of SCLWC A.A. Maghsoudi & S. Mohamad pour * A.A. Maghsoudi, Assistant prof., Civil Eng. Dept., Shaheed Bahonar University of Kerman, kerman, Iran. * Email: maghsoudi.a.a@mail.uk.ac.ir., Fax No.: ++983413220054. ** S.Mohamad pour, M.Sc. Student, Shaheed Bahonar University of Kerman, kerman, Iran. ** Email: mohammadpour631@yahoo.com. ABSTRACT: There is widespread agreement that nanotechnology has the potential to revolutionize the world of concrete materials science. The fundamental processes that govern the most pertinent issues to the study of concrete technology (strength, ductility, early age rheology, swelling and shrinkage, fracture behavior, durability, etc.) all are affected, if not dominated, by the performance of the material at the nanoscale. This paper examines the relationship between nanotechnology and the study of engineering properties of self compacting light weight concrete (SCLC). In order for concrete nanotechnology to be brought to the forefront of the construction industry, the benefits of the technology must be clearly demonstrated by the research community. In this study, the SCLWC mix design consist of either both microsilica and nanosilica or without microsilica and nanosilica were investigated to find out engineering properties of fresh and hardened SCLC experimentally at short and long terms. The results are shown that the use of both microsilics and nanosilica in SCLC mix, can improve the engineering properties of SCC.