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首页> 外文期刊>The Indian concrete journal >Compressive strength development of blended cement concretes containing portland cement, fly ash and metakaolin
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Compressive strength development of blended cement concretes containing portland cement, fly ash and metakaolin

机译：含硅酸盐水泥，粉煤灰和偏高岭土的掺混水泥混凝土抗压强度的提高

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摘要

This paper investigates the compressive strength development of binary and ternary cement concretes containing Portland cement, fly ash and metakaolin at various ages and water/cement ratios. The material costs and embodied carbon dioxide (e-CO_2) levels of these concretes at the strength of 45 N/mm~2 are also presented. The results suggest that metakaolin improves compressive strength at both early and later ages, while fly ash contributes to strength development at later ages. The concretes made with blended cements have lower e-CO_2 levels than those made with Portland cement. The cost data suggest that at 45 N/mm~2 strength, economic blended cement concretes are possible when the level of metakaolin blending is kept at 5%.
机译：本文研究了不同年龄和水灰比下含波特兰水泥，粉煤灰和偏高岭土的二元和三元水泥混凝土的抗压强度发展情况。还介绍了强度为45 N / mm〜2时这些混凝土的材料成本和内含二氧化碳（e-CO_2）含量。结果表明，偏高岭土在早期和晚期均可提高抗压强度，而粉煤灰可在后期提高强度。用混合水泥制成的混凝土的e-CO_2含量低于用波特兰水泥制成的混凝土。成本数据表明，当偏高岭土掺量保持在5％时，强度为45 N / mm〜2时，经济掺混水泥混凝土是可行的。

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