Experiments on Foamed Concrete for the Development of Building Blocks
Sajan K Jose1, Mini Soman2, Sheela Evangeline Y3
1Sajan K Jose, Research Scholar, Department of Civil Engineering, College of Engineering Trivandrum, Kerala, India.
2Dr Mini Soman, Professor, Department of Civil Engineering, College of Engineering Trivandrum, Kerala, India. E-mail:
3Dr Sheela Evangeline Y, Professor, Department of Civil Engineering, College of Engineering Trivandrum, Kerala, India.

Manuscript received on January 09, 2020. | Revised Manuscript received on January 22, 2020. | Manuscript published on January 30, 2020. | PP: 2824-2829 | Volume-8 Issue-5, January 2020. | Retrieval Number: C6250098319/2020©BEIESP | DOI: 10.35940/ijrte.C6250.018520

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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Foamed concrete is an innovative and versatile lightweight building material, which is a cement-based mortar consisting of at least 20% of its volume filled with air. Use of lightweight foamed concrete blocks with densities less than 1800 kg/m3 as infills will lead to the design of slender sections. Further, the thermal insulation properties of foamed concrete blocks made it more popular in construction industry. This paper discusses the development of foamed concrete building blocks for load bearing and non-load bearing structures. To make the mix more sustainable, the feasibility of fly ash as a partial replacement to cement is also explored. The variables considered for the production of foamed concrete are foam volume, water/powder (mix of cement and fly ash) ratio, fly ash content and sand/powder ratio. Analytical model is also developed for compressive strength and dry density of foamed concrete considering different variables and it is validated. Compressive strength is found to be increasing with the increase in dry density and with increase in fly ash content. Thermal conductivity is observed to be reduced by the addition of fly ash content.
Keywords: Foamed Concrete, Fly Ash, Compressive Strength, Sustainability, Thermal Conductivity Words or Phrases in Alphabetical Order, Separated By Commas.
Scope of the Article: Sustainable Structures.