基于性能的工程学:用锯屑和钢纤维配制可持续混凝土,以获得优异的机械性能

IF 2.6 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Frontiers in Materials Pub Date : 2024-09-11 DOI:10.3389/fmats.2024.1428700
Ahsan Waqar, Muhammad Basit Khan, Taoufik Najeh, Hamad R. Almujibah, Omrane Benjeddou
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引用次数: 0

摘要

使用环保材料建造建筑可减少对环境的影响,促进可持续发展。这项研究利用锯末和钢纤维设计可持续混凝土。主要目标是改善力学性能,减少体现碳排放。本研究考察了不同锯末和钢纤维组合的混凝土力学性能,填补了文献空白。本研究探讨了锯屑和钢纤维对混凝土特性的协同效应。研究还考察了这些组合的环境效益。本研究采用响应面方法 (RSM) 设计实验程序,评估输入变量(锯屑和钢纤维的百分比)对输出响应的影响,如抗压强度 (CS)、劈裂拉伸强度 (STS)、抗弯强度 (FS)、弹性模量 (MOE)、含碳量 (EC) 和生态强度效率 (ESE)。既定的测试方法和 RSM 提供了基于试样机械性能的最佳预测模型。锯屑和钢纤维可提高混凝土的力学性能。在混合料中添加了不同比例的两种材料:锯屑(0%-12%)和钢纤维(0%-2%)。实验结果表明,优化后的成分具有以下力学性能:抗压强度为 13.85 兆帕、劈裂拉伸强度为 1.4 兆帕、抗弯强度为 3.67 兆帕、弹性模量为 18.027 千兆帕、体现碳排放量为 211.272 千克二氧化碳/立方米、生态强度效率为 0.065487。研究结果表明,提高机械性能和减少体现碳的目标均已实现。根据多目标优化,混凝土中锯末和钢纤维的最佳比例分别为 11.81% 和 0.063%。调查还提出了许多建议。要在实际建筑项目中测试生态友好型混凝土的最佳混合成分,应从现实项目入手。最后,需要进行生命周期评估和成本研究,以确定生态友好型混凝土与标准方案相比对环境和经济的影响。
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Performance-based engineering: formulating sustainable concrete with sawdust and steel fiber for superior mechanical properties
Construction using eco-friendly materials reduces environmental impact and promotes sustainable practices. This research uses sawdust and steel fibers to design sustainable concrete. The main goal is to improve mechanical properties and reduce embodied carbon emissions. This study examines the mechanical properties of concrete with different sawdust and steel fiber combinations to fill a gap in the literature. In this research synergistic effect of saw dust and steel fiber on concrete characteristics have been studied. The research also examines these pairings’ environmental benefits. This study used a response surface methodology (RSM) to design an experimental program and assess the effects of input variables (sawdust and steel fiber percentages) on output responses like compressive strength (CS), split tensile strength (STS), flexural strength (FS), modulus of elasticity (MOE), embodied carbon (EC), and eco-strength efficiency (ESE). Established testing methodologies and RSM provided an optimum prediction model based on specimen mechanical properties. Sawdust and steel fibers enhances concrete’s mechanical properties. Varying proportions of both materials were added in mix; sawdust (0%–12%) and steel fiber (0%–2%). The experimental findings suggest that the optimized composition achieved the following mechanical properties: 13.85 MPa compressive strength, 1.4 MPa split tensile strength, 3.67 MPa flexural strength, 18.027 GPa modulus of elasticity, 211.272 kg CO2e/m3 embodied carbon, and 0.065487 eco-strength efficiency. This research showed that the aims of improving mechanical properties and reducing embodied carbon were achieved. As per multi-objective optimization, optimal percentages of saw dust and steel fibers in concrete are 11.81% and 0.063% respectively. The investigation yielded many suggestions. To test the optimal blend composition of ecologically friendly concrete in real-world building projects, start with realistic projects. Finally, life cycle evaluations and cost studies are needed to determine the environmental and economic impacts of eco-friendly concrete compared to standard options.
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来源期刊
Frontiers in Materials
Frontiers in Materials Materials Science-Materials Science (miscellaneous)
CiteScore
4.80
自引率
6.20%
发文量
749
审稿时长
12 weeks
期刊介绍: Frontiers in Materials is a high visibility journal publishing rigorously peer-reviewed research across the entire breadth of materials science and engineering. This interdisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers across academia and industry, and the public worldwide. Founded upon a research community driven approach, this Journal provides a balanced and comprehensive offering of Specialty Sections, each of which has a dedicated Editorial Board of leading experts in the respective field.
期刊最新文献
Mid-infrared optical coherence tomography and machine learning for inspection of 3D-printed ceramics at the micron scale Prediction of thermal protection performance and empirical study of flame-retardant cotton based on a combined model Performance-based engineering: formulating sustainable concrete with sawdust and steel fiber for superior mechanical properties Flexural behavior of a UHPC slab - FRP truss hybrid beam implementing a novel FRP joint and tailored shear connector Broadband acoustic pseudospin topological states based on the reverse spin-orbit coupling in generalized insulators
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