Effect of fine aggregate replacement with limestone Slurry Waste in Self Compacting Concrete: A Microstructural Approach

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2024-11-26 DOI:10.1016/j.matlet.2024.137779

Ramswaroop Mandolia, Pawan Kalla, Ravindra Nagar, Jeetendra Singh Khichad

引用次数: 0

Abstract

The stone processing generated Dimensional Limestone Slurry Waste (DLSW) was used in Self-Compacting Concrete (SCC) to evaluate the compressive strength and analyze microstructure. X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD) analysis of DLSW was carried out, and its results revealed the presence of CaO (38.93 %) and SiO₂ (24.33 %), which was associated with calcite and quartz. The rough, angular shape of particles, fineness, and presence of calcite of DLSW help to get optimum density and enhanced compressive strength at 28 days in modified SCC up to a 45 % replacement level. The Mercury Intrusion Porosimetry (MIP), Scanning Electron Microscopy (SEM), Energy Dispersive Spectrometer (EDS) and Ultrasonic Pulse Velocity (UPV) analysis results support the improvement of compressive strength claims.

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自密实混凝土中石灰石废浆替代细骨料的微观结构研究

将石材加工过程中产生的尺寸石灰石浆废弃物（DLSW）用于自密实混凝土（SCC）的抗压强度评价和微观结构分析。对DLSW进行了x射线荧光（XRF）和x射线衍射（XRD）分析，结果表明，DLSW中存在CaO（38.93%）和SiO2(24.33%)，并与方解石和石英相结合。DLSW的粗糙、棱角状颗粒、细度和方解石的存在有助于在改性SCC中获得最佳密度和增强的抗压强度，在28天内达到45%的替代水平。汞侵入孔隙度（MIP）、扫描电镜（SEM）、能谱仪（EDS）和超声脉冲速度（UPV）分析结果支持了抗压强度的提高。

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

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive