Sustainable porous-insulation concrete (SPIC) material: recycling aggregates from mine solid waste, white waste and construction waste

This study developed a sustainable concrete material called Sustainable Porous-Insulation Concrete (SPIC), using mine solid waste (tailings), construction waste (waste perlite particles), and white waste (EPS granules) as aggregates. Through thermal conductivity and compression strength experiments,...

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Bibliographic Details
Main Authors: Yu, Haoxuan, Zahidi, Izni, Liang, Dongfang
Format: Article in Journal/Newspaper
Language:unknown
Published: Elsevier BV 2023
Subjects:
Online Access:https://doi.org/10.17863/CAM.94374
https://www.repository.cam.ac.uk/handle/1810/346958
Description
Summary:This study developed a sustainable concrete material called Sustainable Porous-Insulation Concrete (SPIC), using mine solid waste (tailings), construction waste (waste perlite particles), and white waste (EPS granules) as aggregates. Through thermal conductivity and compression strength experiments, micro-structure analysis, and toxic leaching experiments, it was found that SPIC has both excellent thermal insulation and good strength, making it a cost-effective and eco-friendly material. Potential applications of SPIC include thermal (acoustic) walls in buildings, insulated road foun-dations in permafrost areas, and backfill mining. Noteworthy, in the discussion section, we addressed the potential en-vironmental impact of mine solid waste and highlighted the importance of its reuse. To facilitate the reuse of mine solid waste, we proposed a classification framework for mine solid waste based on the United Nations Framework Classifica-tion (UNFC). This framework provides a standardized approach for classifying mine solid waste based on its potential for reuse, which can help to promote sustainable and responsible resource management in the mining industry.