The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

Sustainability

MarcoCarnevale Miino¹  MariaCristina Collivignarelli¹  Paola Ricciardi¹  Alessandro Abbಠ Giacomo Cillari³  ElenaCristina Rada⁴  Vincenzo Torretta⁴ 

[1] Department of Civil Engineering and Architecture, University of Pavia, via Ferrata 1, 27100 Pavia, Italy;Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, via Branze 43, 25123 Brescia, Italy;Department of Energy, Systems, Territory and Constructions Engineering, University of Pisa, Largo Lucio Lazzarino, 56126 Pisa, Italy;Department of Theoretical and Applied Sciences, Insubria University, Via G.B. Vico, 46, 21100 Varese, Italy;

关键词: green concrete;    waste management;    compressive strength;    physical properties;    environmental compatibility;    circular economy;   

DOI  :  10.3390/su12197903

来源: DOAJ

【 摘 要 】

The concrete industry is a core element of the building sector, but it has to deal with the increasing attention on the environmental issues related to the production process: increasing energy efficiency and the adoption of alternative fuels or raw materials represent the most relevant solutions. The present work analyses physical, mechanical, and environmental performances of concrete incorporating residues derived from four main sources (construction and demolition waste, residues from waste treatment, metallurgical industry by-products, and others), as substitutes of either fine or coarse aggregates. Fine aggregates showed the highest number of alternatives and replacement level, with the relevant impact on concrete properties; coarse aggregates, however, always reach a complete replacement, with the exclusion of glass that highly affects the mechanical performance. Construction and metallurgical industry categories are the main sources of alternative materials for both the components, with ceramic and lead slag reaching a full replacement for fine and coarse aggregates.

【 授权许可】

Unknown