JCE_V3_N4_RP5 Shanthappa B.C. Prahallada M.C. Prakash K.B. Journal on Civil Engineering 2249 - 0779 3 4 41 49 Sustained Elevated Temperature, Self Compacting Concrete, Ordinary Conventional Concrete, Compressive Strength, Tensile Strength, Flexural Strength, Impact Strength This paper presents an assessment of effect of sustained temperatures on strength properties of self compacting concrete produced by the combination of admixtures (Superplasticizer + Viscosity modifying admixture + Air entraining agent + Water proofing compound). The concrete testing specimens were prepared by a mix proportion 1:2.7:6.1:5.1 with cement: fly ash: sand: coarse aggregate with a water/binder ratio of 0.38 and water cured for 28days. After 28days of curing the specimens were kept in oven at required temperature (100^o C, 200^o C, 800^o C and 900^o C) for 4 hrs at constant temperatures. The specimens after cooling were weighed again to find the percentage loss of weight and were thoroughly observed for their change in colour and cracks. These specimens were tested for their respective strengths like compressive strength, flexural strength, tensile strength and impact strength for different percentage addition of last admixture. SCC produced with the combination of admixtures show better resistance to elevated temperatures. The results obtained were compared with the corresponding properties of normal concrete with the same water, cement and air content. September - November 2013 Copyright © 2013 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2525