To study the effect of adding Al2O3 nanoparticles on the mechanical properties and microstructure of cement mortar

Abstract

In this work, research has been done on the compressive, tensile and flexural strength of cement mortar containing Al2O3 nanoparticles in the amounts of 1, 3 and 5 percent by weight of cement. The results show that the mechanical properties of samples containing 1 and 3 percent Al2O3 nanoparticles are desirable then the ordinary cement mortar. But by increasing Al2O3 nanoparticles to 5 percent, the mechanical properties reduce severely. SEM study about the microstructure of cement mortar containing nanoparticles and ordinary cement mortar showed that Al2O3 nanoparticles reduces the CaOH2 crystals and fills the pores and increases the density of cement mortar. (M. R. Arefi, M. R. Javeri, E. Mollaahmadi. To study the effect of adding Al2O3 nanoparticles on the mechanical properties and microstructure of cement mortar. Life Science Journal. 2011;8(4):613-617) (ISSN:1097-8135). http://www.lifesciencesite.com.