Enhancing Sustainability in Construction: An Evaluation of Lightweight Concrete with Sintered Fly Ash and Waste Marble Sand

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-22 DOI:10.1520/acem20230070

Pankaj Dhemla, Prakash Somani, Bajrang Lal Swami

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Abstract

Marble waste and fly ash are industrial waste, and disposal of these wastes is a big challenge for environmental sustainability. In this study, we explore an innovative approach to sustainable construction by utilizing industrial by-products: sintered fly ash aggregate (SFA) and waste marble sand in lightweight aggregate concrete (LWAC). This study used SFA as a coarse aggregate, whereas river sand was partially replaced by waste marble sand (10–50 %). The waste marble sand modified LWAC has been investigated for mechanical and durability properties. The test related to permeability like water absorption, sorptivity, permeability, and drying shrinkage has been performed. Mercury intrusion porosimetry test was performed to validate durability results. The results indicate that 30 % of river sand can be replaced with waste marble sand as it improves the overall performance of LWAC. Our research contributes to global sustainability efforts by providing a method to reduce industrial waste through its incorporation in building materials. This study not only addresses the urgent need for environmental preservation but also offers potential enhancements in the mechanical properties of LWAC, making it a viable and eco-friendly option in the construction industry worldwide.

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增强建筑业的可持续性：使用烧结粉煤灰和废大理石砂的轻质混凝土评估

大理石废料和粉煤灰属于工业废料，这些废料的处理是环境可持续发展的一大挑战。在这项研究中，我们探索了一种可持续建筑的创新方法，即在轻质骨料混凝土（LWAC）中利用工业副产品：烧结粉煤灰骨料（SFA）和废大理石砂。这项研究使用烧结粉煤灰作为粗骨料，而河砂部分由废大理石砂代替（10%-50%）。对废大理石砂改性的轻质骨料混凝土（LWAC）进行了机械和耐久性能研究。进行了与渗透性有关的测试，如吸水率、吸水率、渗透性和干燥收缩率。为了验证耐久性结果，还进行了汞侵入孔隙度测试。结果表明，可以用废大理石砂替代 30% 的河砂，因为这样可以提高 LWAC 的整体性能。我们的研究为全球的可持续发展做出了贡献，提供了一种通过在建筑材料中加入工业废料来减少工业废料的方法。这项研究不仅解决了环境保护的迫切需求，还提供了提高 LWAC 机械性能的潜力，使其成为全球建筑行业中可行的环保选择。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.