Thermal performance of Rice Husk Ash mixed mortar in concrete and masonry buildings


Abstract

Rice Husk (RH) is an agricultural waste which is produced in huge amounts from the milling process of paddy rice. Rice Husk Ash (RHA) is a by-product material obtained from the combustion of rice husk. The amorphous silica-rich RHA (84-90 wt%) has a wide range of applications. This research focused on the possibility of utilizing RHA in the process of developing a mortar with low thermal conductivity to enhance the thermal comfort in concrete and masonry buildings. The thermal conductivity of mortar was determined by Lee’s Disc method, and the results were compared to the data for conventional mortar as well as commercial thermal insulation materials. The results indicate a significant reduction in thermal conductivity in the mortar developed with RHA


Keywords

thermal conductivity; mortar; mechanical properties; SEM; Rice Husk Ash

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Published : 2020-11-02


Selvaranjan, K., Gamage, J., De Silva, G. and Attanayaka, V. (2020) “Thermal performance of Rice Husk Ash mixed mortar in concrete and masonry buildings”, Budownictwo i Architektura, 19(4), pp. 045-053. doi: 10.35784/bud-arch.2121.

Kajanan Selvaranjan  kajansss22@gmail.com
Department of Civil Engineering, University of Moratuwa, Sri Lanka  Sri Lanka
https://orcid.org/0000-0003-3589-6065
J.C.P.H. Gamage 
Department of Civil Engineering; University of Moratuwa;  Sri Lanka
https://orcid.org/0000-0002-9246-8414
G.I.P. De Silva 
Department of Materials Science and Engineering; University of Moratuwa;  Sri Lanka
https://orcid.org/0000-0002-8792-3494
Vajira Attanayaka 
Airow Solutions (Pvt) Ltd.;  Sri Lanka
https://orcid.org/0000-0002-6624-0838




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