Experimental and analytical study on flexural behavior of reinforced concrete beams using nano silica

• Published in: Materials today : proceedings Vol. 50; pp. 57 - 69
• Main Authors: Rashmi, R., Padmapriya, R.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2022
• Subjects: Finite element analysis (FEA); Flexural property; Manufactured sand; Nano silica; Flexural property; Manufactured sand; Nano silica; Finite element analysis (FEA)
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2021.04.127

Nano technology is an emerging field in material science. Hence this research has been conducted to examine the flexural behaviour of the Reinforced concrete beam with Nano Silica and the same is compared analytically using ABAQUS. The structural behaviour of Reinforced concrete beam which has been strengthened using nano silica of various proportion 1%, 2%, 3%, 4%, 5% along with various proportion of 25%,40%, 50%,75%,100% Manufactured sand (Msand) is investigated. Mix proportion of M40 and M50 grade of concrete was used for concrete mix design. This flexural behaviour of nano concrete is compared with the conventional concrete. Nano silica which has a large surface area eventually, strengthens the reinforced concrete beam which behaves as micro filler improving the microstructure and makes it more homogeneous, the pozzalonic reaction improves the microstructure and makes it more homogeneous. The effect of concrete strain, the cracking patterns, the mode of failure and deflection was examined. To verify the experimental results a non-linear finite element analysis of three dimensional high strength concrete beam was conducted using ABAQUS. It was found that analytical and the Experimental results are agreeable.