3D printed concrete as a source of recycled aggregates: potential for multi-recycling and CO2 sequestration

Hormigón impreso en 3D como fuente de áridos reciclados: potencial de multireciclaje y secuestro de CO2

Other authors

Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental

Universitat Politècnica de Catalunya. Doctorat en Enginyeria de la Construcció

Universitat Politècnica de Catalunya. EC - Enginyeria de la Construcció

Universitat Politècnica de Catalunya. ATEM - Anàlisi i Tecnologia d'Estructures i Materials

Publication date

2024-12

Abstract

Additive manufacturing of concrete (3D printed concrete, 3DPC), is an emerging technology with numerous possible applications and benefits for the digital transition of the construction industry. At the same time, there remain open questions about the environmental suitability of 3DPC. One such aspect is its circularity, i.e. recyclability. Therefore, in this study, the viability of recycling 3DPC is studied on normal- and high-strength 3DPC concretes produced with 0–100% of fine recycled aggregate (fRA). After testing for basic mechanical properties, the specimens were crushed and new (2nd generation) fRA were obtained and tested. The results point to a high potential for recyclability of 3DPC and fRA conducive to multi-recycling and CO2 uptake through carbonation.


Peer Reviewed


Postprint (published version)

Document Type

Article

Language

English

Related items

https://revistaingenieriaconstruccion.uc.cl/index.php/ric/article/view/86048

info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PCI2022-132948/ES/RECYCLED AGGREGATES FOR 3D PRINTED CONCRETE STRUCTURES/

Recommended citation

This citation was generated automatically.

Rights

http://creativecommons.org/licenses/by/4.0/

Open Access

Attribution 4.0 International

This item appears in the following Collection(s)

E-prints [73026]