The Effect of Magnesium Oxide Nano Particles on the Mechanical and Practical Properties of Self-Compacting Concrete
One of the most important advances in the civil engineering industry is the application of nanotechnology and concrete performance in combination with some materials in order to improve their properties, behavior and structure, as well as the use of nanomaterials to produce high performance and multi-purpose concrete. Concretes properties, behavior and performance depends on the nanostructure of concrete and cement material which creates adhesion, cohesion and integrity. Therefore, concrete studies at the nanoscale are very important to develop new concrete materials and their applications. In this research, the effect of magnesium oxide (MgO) nanoparticles on the mechanical and practical properties of self-compacting concrete was investigated. Here, self-compacting concrete with different percentages of 1, 2, 3, and 4 of cement weight was made from MgO nanoparticles, and experiments of slump flow, slump flow T = 50 cm, L-box, U-box and V-funnel tests were conducted. The results showed that adding MgO nanoparticles of 2% by weight of cement to self- compacting concrete, increases compressive, tensile and flexural strength respectively by 33%, 20% and 59% at the age of 28-days.
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