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Advances in Recycled Aggregate Concrete and Binders for Sustainable Building Engineering

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: closed (20 July 2023) | Viewed by 2641

Special Issue Editors


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Guest Editor
Department of Construction Engineering and Projects, University of Granada, 18071 Granada, Spain
Interests: recycled materials; eco-efficient concrete; recycled aggregates; waste and by-products; sustainable construction; cement-based materials; health and safety at work; construction risk prevention
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Guest Editor
Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum—Università di Bologna, 40131 Bologna, Italy
Interests: sustainability in building and construction; waste recycling; circular economy; life cycle assessment
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Area of Construction Engineering, University of Cordoba, 14071 Córdoba, Spain
Interests: sustainable construction; recycled materials; life cycle assessment; waste and byproduct application; recycled aggregate cement-based materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The management of different industrial waste and by-products, such as recycled aggregates from construction and demolition waste, alumina by-products, biomass ash, and olive stone or reinforcing fibers, as well as the reduction of landfill deposits by incorporating these products in a second life cycle, is the aim of this work.

The application of these materials as mixed recycled aggregates or  recycled concrete aggregates in engineering  works has been studied intensively over the last two decades.

Additionally,  the application of some of these by-products in the production of concrete has been the subject of numerous investigations, where the aim is to apply these types of materials as a supplementary cementing material, limestone filler, or as a replacement for natural aggregates.

To summarize, sustainable construction materials can reduce the amount of constitutive elements of concrete required for civil constructions, as well as being a viable material for road pavement base layers.

For this reason, this Special Issue presents current research applicable for engineering projects, with a focus on the use of efficient materials in some stages of the life cycle in order to improve the reduction the CO2 demand.

Prof. Dr. Mónica López-Alonso
Prof. Dr. Alessandra Bonoli
Prof. Dr. Francisco Agrela
Guest Editors

Manuscript Submission Information

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Keywords

  • sustainability
  • eco-efficiency
  • advanced materials
  • road pavements
  • concrete
  • environmental
  • life cycle analysis
  • aggregates
  • supplementary cementitious materials
  • civil engineering

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Published Papers (1 paper)

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Research

12 pages, 1722 KiB  
Article
Comparative Life Cycle Assessment (LCA) of Porous Asphalt Mixtures with Sustainable and Recycled Materials: A Cradle-to-Gate Approach
by Beatrice De Pascale, Piergiorgio Tataranni, Alessandra Bonoli and Claudio Lantieri
Materials 2023, 16(19), 6540; https://doi.org/10.3390/ma16196540 - 3 Oct 2023
Cited by 2 | Viewed by 2100
Abstract
The road and construction sectors consume a large number of natural resources and energy, contributing significantly to waste generation and greenhouse gas emissions (GHG). The use of recycled aggregate from construction and demolition waste as a substitute for virgin aggregate is a current [...] Read more.
The road and construction sectors consume a large number of natural resources and energy, contributing significantly to waste generation and greenhouse gas emissions (GHG). The use of recycled aggregate from construction and demolition waste as a substitute for virgin aggregate is a current practice in the construction of new road sections. Additionally, in recent years, there has been an increasing focus on finding alternatives to bitumen for binders used in asphalt mixes. This study investigates and compares the impacts associated with two porous asphalt mixtures produced with CDW aggregates, virgin aggregates, and a polyolefin-based synthetic transparent binder through an LCA methodology. A cradle-to-gate approach was employed. Model characterization for calculating the potential environmental impacts of each porous asphalt mixture was performed using the ReCipe 2016 assessment method at the midpoint and endpoint levels. The results are presented with reference to a baseline scenario corresponding to a porous asphalt mixture, confirming the benefits associated with the use of recycled aggregates and in some cases the benefits of not using bitumen-based binders. This work contributes to the understanding of the importance of choosing the least environmentally damaging solution during the production or rehabilitation of road pavement infrastructure. Full article
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