BUILDING
MATERIALS AND STRUCTURES
JOURNAL FOR REASEARCH OF MATERIALS AND STRUCTURES

New Eurocode 2 provisions for recycled aggregate concrete and their implications for the design of one-way slabs

Abstract: 

A significant amount of research has been performed on recycled aggregate concrete (RAC), both on the material and structural level. This has enabled the formulation of material and structural resistance models that can be safely and reliably used for the structural design of RAC members and the new Eurocode 2 (EC2) will contain an informative annex detailing provisions for the design of RAC. Thus, an increased market uptake of recycled aggregate (RA) can be achieved,leading to potential sustainability improvements of concrete structures. In order to familiarize designers with the new provisions for RAC, this paper presents an example of one-way slab design using varying RA substitution ratios, as well as aparametric study on the implications of RAC provisions on slab slenderness. Theresults of this study show that RAC one way slabs can be successfully designedusing EC2. Although such slabs might require larger depths than natural aggregate concrete slabs, their applicability in the typical slenderness range is possible. A significant amount of research has been performed on recycled aggregate concrete (RAC), both on the material and structural level. This has enabled the formulation of material and structural resistance models that can be safely and reliably used for the structural design of RAC members and the new Eurocode 2 (EC2) will contain an informative annex detailing provisions for the design of RAC. Thus, an increased market uptake of recycled aggregate (RA) can be achieved,leading to potential sustainability improvements of concrete structures. In order to familiarize designers with the new provisions for RAC, this paper presents an example of one-way slab design using varying RA substitution ratios, as well as aparametric study on the implications of RAC provisions on slab slenderness. Theresults of this study show that RAC one way slabs can be successfully designedusing EC2. Although such slabs might require larger depths than natural aggregate concrete slabs, their applicability in the typical slenderness range is possible.

Article status: 
Published
Journal number: 
2021-02

Authors

Nikola Tošić - Civil and Environmental Engineering Department,Universitat Politècnica de Catalunya (UPC),Jordi Girona 13,08034 Barcelona
Jean Michel Torrenti - Département Matériaux et Structures-Mast,Université Gustave Eiffel,5 Boulevard Descartes,Champs-sur-Marne,77454 Marne-la-Vallée Cedex 2

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