用于非结构应用的膨胀粘土骨料轻质混凝土可行性研究

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-29 DOI:10.1155/2024/8263261

Shayan Ali Khan, Fazal Hussain, Rao Arsalan Khushnood, Hassan Amjad, Farhan Ahmad

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引用次数: 0

摘要

在非结构填充板中，发泡聚苯乙烯板等常见材料易燃，蒸压加气混凝土（AAC）生产成本高，而传统砖块的碳足迹和重量都很大。因此，需要一种不仅具有弹性和轻质，而且可持续发展的填充板。本研究试图通过在混凝土中引入可持续的轻质膨胀粘土骨料（ECA）来解决这些问题。首先，通过将粉煤灰和煤油与粘土混合，制备出八种 ECA 混合设计，制备出体积密度为 0.59 g/cm³、抗压强度高达 1.73 MPa 的 ECA。然后选择了最轻的 ECA 混合物，以探索其在轻质骨料混凝土（LWAC）中的应用，并将粉煤灰作为辅助胶凝材料。所制备的轻质骨料混凝土（LWAC）的最小密度为 1,050 kg/m³，抗压强度为 6.8 MPa，达到了非结构混凝土最小 3.5 MPa 的标准要求。

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Feasibility Study of Expanded Clay Aggregate Lightweight Concrete for Nonstructural Applications

In nonstructural infill panels, common materials like expanded polystyrene panels face fire susceptibility, autoclaved aerated concrete (AAC) incurs high production costs, and traditional bricks come with a significant carbon footprint and weight. So, there is a requirement for infill panels that are not just resilient and lightweight but sustainable as well. This study seeks to address these issues by introducing sustainable and lightweight expanded clay aggregate (ECA) in concrete. Firstly, eight ECA mix designs were prepared by integrating fly ash and kerosene with clay, and ECA with a bulk density of 0.59 g/cm³ and compressive strength of up to 1.73 MPa were prepared. The lightest ECA mix was then chosen to explore their use in lightweight aggregate concrete (LWAC) along with fly ash as a secondary cementitious material. The resulting LWAC had a minimum density of 1,050 kg/m³ and a compressive strength of 6.8 MPa, fulfilling the standard requirements of a minimum of 3.5 MPa for nonstructural concrete.

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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.