Evaluation survey of concrete composite using nano and micro silica materials for better properties

Abstract

Abstract Concrete will be the very flexible material. Because of continuous and persistent demands made on concrete to assemble the several problematic necessities, extensive examination work is being carried out in region of concrete method. The engineers have frequently pushing restrictions to expand its presentation with support of supplementary cementitious materials and innovative chemical admixtures such as steel slag, fly ash, and silica fume and so on. Nanomaterial concrete is advanced one the composition of nanomaterial concrete it has following water, coarse aggregate, cement nano silica grain of the size of 10 nm-140 nm and fine aggregate. The nano materials like nano alumina, nano titanium oxide, nano silica, and carbon nano tubes, so on, which are currently utilized in concrete to change its strength assets. The “nano materials” have functions or properties diverse from same materials of bigger size. The “nano materials” have a bigger value of ratio among volume and surface region than other same particles in larger size, creating the “nano-materials” much reactive. The “nano silica” will react with C3S and C2S in cement &generate CSH-2 that will create a solid &strong connection of gel. In current survey, properties of strength like split tensile, compressive, and flexural strength of M50 and M40 grades of concrete with utilization of nano silica (1%, 1.5%, 2%, 2.5%) and micro silica (5%, 7.5%, 10%, 15%) as incomplete replacement of cement were deliberated. It was establish from evaluation survey that concrete composites with better properties could be generated utilizing nano silica, micro silica, and mixture of nanosilica and micro silica.