ROPERTIES OF HIGH PERFORMANCE STEEL FIBER REINFORCED CONCRETE CONTAINING HIGH REACTIVITY METAKAOLIN | ||
| AL-TAQANI | ||
| Article 1, Volume 25, Issue 1, March 2012, Pages 0-0 | ||
| Author | ||
| Raya Yaseen Mohammed | ||
| Abstract | ||
| This paper investigates the effect of using high reactivity metakaolin (HRM) on the properties of high performance steel fiber reinforced concrete . Compressive strength , splitting tensile strength , flexural strength , Impact resistance and absorption for five mixes were investigated . HRM content used in this study was 5% , 10% and 15% as a partial replacement of cement with 2% fibers by volume of concrete . The results indicated that the reference concrete reinforced with 2% steel fibers by volume showed a significant increase in splitting tensile strength , flexural strength and impact resistance, the percentage increase after 60-day relative to reference concrete were 29.6% , 30.7% and 179% respectively . The results also showed that the incorporation of 10% HRM as a partial replacement by weight of cement with 2% steel fibers showed considerable improvement in all properties , the percentage increase in compressive strength , splitting tensile strength , and flexural strength after 60-day compared to reference concrete were 12.3% , 46.8% , and 46.5% respectively . | ||
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