Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 30, Issue -, Pages 274-280Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2011.11.010
Keywords
Self-compacting-concrete; Temperature effects; Fly ash; Mechanical and durability properties
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This paper aimed to study the properties of Self-Compacting-Concrete (SCC) such as compressive strength, splitting tensile strength, rapid chloride permeability, porosity, and mass loss when exposed to elevated temperatures. In this research, mixes were prepared with three percentages of class F fly ash ranging from 30% to 50% and for comparison; one controlled mixture without fly ash was also produced. The variables included were the temperature effects (20 degrees C, 100 degrees C, 200 degrees C, and 300 degrees C) using Ordinary Portland Cement. SCC mixes developed 28 days compressive strength ranging from 21.43 to 40.68 MPa and splitting tensile strength ranging from 1.35 to 3.60 MPa. Test results clearly show that there is little improvement in compressive strength within temperature range of 200-300 degrees C as compared to 20-200 degrees C but there is little reduction in splitting tensile strength ranging from 20 to 300 degrees C and with the increase in percentage of fly ash. (C) 2011 Elsevier Ltd. All rights reserved.
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