Performance Analysis of Self-Compacting Concrete with Use of Artificial Aggregate and Partial Replacement of Cement by Fly Ash

IF 3.1 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

Buildings Pub Date : 2024-01-06 DOI:10.3390/buildings14010143

Abhay Patil, Vivek Jayale, K. Arunachalam, Khalid Ansari, Siva Avudaiappan, Dhiraj Agrawal, A. Kuthe, Yousef R. Alharbi, Mohammad Amir Khan, Á. Roco-Videla

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引用次数: 0

Abstract

Artificial aggregate (AF), i.e., silico manganese (SiMn) slag aggregate, is a byproduct of ferromanganese and silico manganese alloy production. The utilization of industrial waste and industrial byproducts in construction has increased the aim of conserving natural resources to nurture a pollution-free environment. The current study examines the performance of the use of artificial aggregate (AF) and partial replacement of cement with fly ash (FA). The properties of fresh concrete, as well as the compressive and flexural strength and split tensile strength of concrete were evaluated. Seven mix proportions were prepared for M30-grade concrete. The first was a control mix (with 0% AF and FA), three other mixes contained varying amounts of AF (20%, 40%, and 60%) as a partial replacement of CA with AF. The average compressive strength of the control SCC was found to be 32.87 MPa (megapascals) at the age of 28 days, and after replacing 20% natural aggregate with artificial aggregate, the compressive strength increased by 8.27%, whereas for 40% and 60% replacement, it decreased by 4.46% and 12.55%, respectively. Further investigation was performed on the optimum value obtained by replacing 20% of CA with AF. At this percentage, cement was replaced by FA at (15%, 25%, and 35%) where at 15%, the average compressive strength increased by 7.41%, whereas for 25% and 35% replacement, it decreased by 7.47% and 17.19%, respectively. For SCAF20 and SCF15, all strengths were at maximum due to the increase in its density. The findings show that the development of advanced construction materials is environmentally sustainable.

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使用人工骨料和粉煤灰部分替代水泥的自密实混凝土性能分析

人工骨料（AF），即硅锰（SiMn）矿渣骨料，是锰铁和硅锰合金生产的副产品。在建筑中利用工业废料和工业副产品的目的是为了保护自然资源，营造一个无污染的环境。本研究探讨了使用人工骨料（AF）和粉煤灰（FA）部分替代水泥的性能。对新拌混凝土的性能以及混凝土的抗压、抗折强度和劈裂拉伸强度进行了评估。为 M30 级混凝土配制了七种混合比例。第一种是对照混合料（AF 和 FA 含量为 0%），另外三种混合料含有不同数量的 AF（20%、40% 和 60%），作为 AF 对 CA 的部分替代。结果发现，对照 SCC 在 28 天龄期时的平均抗压强度为 32.87 兆帕，用人工骨料取代 20% 的天然骨料后，抗压强度提高了 8.27%，而取代 40% 和 60% 的人工骨料后，抗压强度分别降低了 4.46% 和 12.55%。对用 AF 替代 20% CA 所获得的最佳值进行了进一步研究。在这一比例下，水泥在（15%、25% 和 35%）时被 FA 取代，在 15% 时，平均抗压强度增加了 7.41%，而在 25% 和 35% 时，平均抗压强度分别降低了 7.47% 和 17.19%。对于 SCAF20 和 SCF15，由于密度增加，所有强度都达到最大值。研究结果表明，先进建筑材料的开发具有环境可持续性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Buildings Multiple-

CiteScore

3.40

自引率

26.30%

发文量

1883

审稿时长

11 weeks

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