Life Cycle Assessment and Shrinkage Properties of Sustainable Green HPMs with Eco-Friendly SWMs

IF 1.4 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Advances in Cement Research Pub Date : 2022-10-19 DOI:10.1680/jadcr.22.00010

H. Öz, M. Güneş, H. E. Yücel, O. Ersoy, Yunus Sever, Sevgi Demirel

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Abstract

In this study, the usage of an alternative material as supplementary cementitious materials were researched for the design of high performance mortars (HPMs). For this purpose, SWMs (aspect ratio of 22:1) were produced from calcite and quartz sand. Then, SWMs were replaced with the ratios of 0, 3, 6, 9 and 12% by the cement weight to investigate the fresh, mechanical, and shrinkage properties of HPMs. Test results showed that the mechanical and shrinkage properties of HPMs had an improvement up to 9% of SWMs due to its special particle characteristics. The compressive strength, flexural strength, modulus of elasticity, fracture toughness and fracture energy of HPM incorporating 9% of SWM was higher than that of the control mixture by 8.8-9.1%, 7.5-9.9%, 4.7-6.7%, 8.9-4.6% and 13.2-2.5% at 28-90 days, respectively. Similarly, these ratios for maximum drying shrinkage and average crack width were determined as 10.5% and 58.3%, respectively, at the end of 60 days. These findings were also supported by SEM/EDX and TGA/DTA. Moreover, the potential environmental impacts resulting from the production of 1 kg SWM and HPM incorporating 9% SWM were evaluated using the life cycle analysis software (LCA) SimaPro 8.5.0.0. Based on the LCA results, SWMs with acicular particle structure can be used as an alternative material to develop sustainable concrete structures.

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可持续绿色hpm与生态友好型SWMs的生命周期评估与收缩特性

在本研究中，研究了一种替代材料作为辅助胶凝材料在高性能砂浆设计中的应用。为此，SWM（长径比为22:1）由方解石和石英砂制成。然后，将SWM替换为水泥重量的0%、3%、6%、9%和12%，以研究HPM的新鲜、机械和收缩性能。试验结果表明，由于其特殊的颗粒特性，HPM的力学性能和收缩性能比SWM提高了9%。掺入9%SWM的HPM在28-90天的抗压强度、弯曲强度、弹性模量、断裂韧性和断裂能分别比对照混合物高8.8-9.1%、7.5-9.9%、4.7-6.7%、8.9-4.6%和13.2-2.5%。同样，在60天结束时，最大干燥收缩率和平均裂缝宽度的比值分别为10.5%和58.3%。这些发现也得到了SEM/EDX和TGA/DTA的支持。此外，使用生命周期分析软件（LCA）SimaPro 8.5.0.0评估了1 kg雨水管理设施和含9%雨水管理设施的HPM生产产生的潜在环境影响。基于生命周期评价结果，针状颗粒结构的雨水管理设施可作为开发可持续混凝土结构的替代材料。

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

Advances in Cement Research 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

审稿时长

3.2 months

期刊介绍： Advances in Cement Research highlights the scientific ideas and innovations within the cutting-edge cement manufacture industry. It is a global journal with a scope encompassing cement manufacture and materials, properties and durability of cementitious materials and systems, hydration, interaction of cement with other materials, analysis and testing, special cements and applications.