Study on effect of natural and ground Rice-Husk Ash concrete

• Published in: KSCE journal of civil engineering Vol. 19; no. 6; pp. 1560 - 1565
• Main Authors: Ponmalar, V., Abraham, R. Albert
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society of Civil Engineers 01-09-2015; Springer Nature B.V; 대한토목학회
• Subjects: Ashes; Cement; Cements; Chloride resistance; Civil Engineering; Concrete; Concretes; Construction Management; Controlled conditions; Crop production; Earth surface; Engineering; Geotechnical Engineering & Applied Earth Sciences; Grounds; India; Industrial Pollution Prevention; Penetration resistance; Pozzolans; Rice; Staples; 토목공학; concrete; ground; rice-husk; natural; permeability
• ISSN: 1226-7988; 1976-3808
• DOI: 10.1007/s12205-014-2019-4

One percent of the earth’s surface is used for cultivation of rice and it is the staple food for billions of people. In India, rice production is 21.2% of World’s production and ranked second among the top twenty rice producing countries. The Rice-Husk Ash (RHA) is a waste residue from incinerating rice-husk. A high reactive pozzolan is obtained when RHA is burnt under controlled conditions. In this paper, the residual RHA was used as a substitute for cement firstly as Natual RHA (NRHA- without grinding) and secondly as Ground RHA (GRHA). The optimum percentage of replacement of RHA was obtained as 10% by weight of cement for natural RHA replaced concrete and 15% for Ground RHA replaced concrete and corresponding improvement in strength as 4.3% and 11.4% respectively as compared to control concrete. Chloride penetration resistance characteristics of natural and ground RHA concretes are 19% and 52% respectively as compared to control concrete.