Effect of marble microparticles as additive on the physical and mechanical properties of concrete mixes

Abstract

This study aimed to determine the effect of marble microparticles as an additive on concrete mixes' physical and mechanical properties. Specifically, this pater is expected to: a) determine the mechanical properties of concrete using different quantities of marble microparticles in concrete mixes in terms of the following: compressive strength, flexural strength, shearing strength, and deflection; b) identify the physical properties of concrete using different amount of marble microparticles in concrete mixes in terms of the following: water absorption and bulk density; and c) determine if there was a significant difference in mechanical properties of concrete with the addition of marble microparticles; d) determine if there was a significant difference in physical properties of concrete with different amount of marble microparticles. The study showed that the more significant marble microparticles added to the concrete mixes, the greater its strength. In terms of water absorption and bulk density, concrete mixes with 5% marble microparticles added had the highest rate. For compressive strength, flexural strength, shear strength, and deflection, the study found that concrete mixes with 5% marble microparticles got the highest rate of strength. As established on the result of the physical and mechanical properties of the specimen samples, the researchers concluded: a) in terms of physical properties, increasing the number of marble microparticles as additives in cement increased the bulk density and water absorption, b) increasing the number of marble microparticles as additives increased the compressive strength, flexural strength, and shear strength c) there were no significant differences on the treatment means for bulk density, water absorption, and compressive strength d) there were significant differences between the treatment means of samples for flexural strength and derived calculations for shear strength and deflection and e) the results for deflection passed the maximum allowable deflection of 1.4583 mm from the formula L/360.