Recycling of Aluminosilicate-Based Solid Wastes through Alkali-Activation: Preparation, Characterization, and Challenges

Author:

Feng Lichao1,Yi Shengjie1,Zhao Shuyuan2,Zhong Qiucheng1,Ren Feirong1,Liu Chen3,Zhang Yu3,Wang Wenshou4,Xie Ning4,Li Zhenming5ORCID,Cui Na4

Affiliation:

1. Jiangsu Marine Resources Development Research Institute and School of Mechanical Engineering, Jiangsu Ocean University, Lianyungang 222005, China

2. National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China

3. Department of Materials and Environment (Microlab), Faculty of Civil Engineering and Geoscience, Delft University of Technology, 2628 CD Delft, The Netherlands

4. School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China

5. Department of Materials Science and Engineering, The University of Sheffield, Sheffield S10 2TN, UK

Abstract

Recycling aluminosilicate-based solid wastes is imperative to realize the sustainable development of constructions. By using alkali activation technology, aluminosilicate-based solid wastes, such as furnace slag, fly ash, red mud, and most of the bio-ashes, can be turned into alternative binder materials to Portland cement to reduce the carbon footprint of the construction and maintenance activities of concrete structures. In this paper, the chemistry involved in the formation of alkali-activated materials (AAMs) and the influential factors of their properties are briefly reviewed. The commonly used methods, including X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TG), nuclear magnetic resonance spectroscopy (NMR), and X-ray pair distribution function technology, to characterize the microstructure of AAMs are introduced. Typical characterization results of AAMs are shown and the limitations of each method are discussed. The main challenges, such as shrinkage, creep, efflorescence, carbonation, alkali–silica reaction, and chloride ingress, to conquer for a wider application of AAMs are reviewed. It is shown that several performances of AAMs under certain circumstances seem to be less satisfactory than traditional portland cement systems. Existing strategies to improve these performances are reviewed, and recommendations for future studies are given.

Funder

National Natural Science Foundation of China Regional Innovation and Development Joint Fund

Horizon Europe Guarantee Fund

Taishan Scholar Program, Case-by-Case Project for Top Outstanding Talents of Jinan, Double Hundred Foreign Expert Program

Jiangsu Industry-University-Research Corporation Program

Lianyungang Key Technique Competition Program

Lianyungang Science and Technology Transformation Program

Publisher

MDPI AG

Subject

Building and Construction,Civil and Structural Engineering,Architecture

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3