In the present study, different nanoparticles were used to improve the Cementation Brick properties, such as Nano Alumina (NA), Nano Ferrite (NF) and Nano Copper (NC). The weight of cement was partially replaced by those nanoparticles. All types of nanoparticles were added in four ratios (0.5, 1, 1.5 and 2 wt%). Three types of those nanoparticles were utilized as mixtures, first mix of NA, second mix of NF and mix of NC brick. Experimental studies were conducted to identify the optimum ratio of the mixture. The results show that 2 wt% of Nano Copper is the most relevant ratio that can improve the targeted properties. In addition, the best ratios of Nano Alumina and Nano Ferrite were observed to be 1.5 wt%. Overall, the bricks with added nanoparticles showed a better reinforcement than the bricks without adding nanoparticles. The concrete testing equipment was used to determine the bearing strength of the bricks in three different curing ages 7, 28 and 90 days. It was revealed that the bricks that contain NA particles show a better performance of strength against the compression of the tester than NC and NF particles in all ages. The ratio of 2 wt% resulted as the best ratio to decrease the water absorption of the bricks. Also, the bulk density was higher when 2 wt% ratio was used. Thus, the physical properties were significantly improved when using the nanoparticles.
This research investigates the influence of addition of Nano materials (Nano ferrite) on the physical and mechanical properties of the cementitious brick, by adding 1, 2, 3% of Nano ferrite by weight of cement. Bearing strength tests at RT and exposure to 100, 200, 300°C temperature after 4 hour, Bulk density and water absorption of resulting bricks were tested. Ni-Zn-Mg-ferrite nanoparticles were prepared using citrate auto combustion method using the X-Ray Diffraction (XRD) to characterize the prepared sample where found the particle size is (49.6 nm) with good crystalline structure. The results show that possibility to synthesize nanoparticles, the optimum content of the Nano ferrite was 2% that produces the ultimate increase in the bearing strength and improvement in physical properties. The mechanical test results showed a tendency to lose strength at high temperature. It was found that a decrease in the water absorption from 4.913 to 3.273 wt % occurred at 3% of Nano ferrite.
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