Investigation on Mechanical Strength of Cellular Concrete in Presence of Silica Fume. Issue 1 (November 2020)

• Record Type: Journal Article
• Authors: Fani, G M; Singla, S; Garg, R; Garg, R
• Is Part Of: IOP conference series. Volume 961:Issue 1(2020)
• Publication Date: 2020-11
• Subjects: Cellular concrete -- Silica fume -- Polyurethane -- Compressive Strength -- Split tensile strength.; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/961/1/012008
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Over the past decade, Cellular Lightweight concrete has gained popularity in the construction industry. Despite its advantageous low weight, thermal insulating, and fire-resistant nature, its comparatively low strength is a matter of concern. To develop the strength of this type of concrete, a thorough characterization of its main characteristics must be studied thereafter in addition to supportive cementitious materials. The effect of polyurethane on density and strength of cellular concrete subjected to varying curing conditions have been investigated in this report. Besides, Silica Fume has been used as a partial substituent of cement and as supportive cementitious material. The cellular concrete has been obtained by varying silica fume (0-20% by weight of cement) and polyurethane (0-20% by volume) at 7, 28, 56, and 90 days of curing. Density, compressive strength, split tensile strength and flexural strength have been investigated for all the specimens. The findings revealed a decrease in density and strength of cellular concrete in the absence of SF and the presence of polyurethane. The introduction of silica fume resulted in higher density and strength revealing the beneficial use of this pozzolanic material.