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Article

Analysis of Physical Properties of Coarse Aggregates Recovered from Demolished Concrete with a Two-Stage Water Jigs Process for Reuse as Aggregates in Concrete

by
Artur Bressanelli Teixeira
1,*,
Carlos Hoffmann Sampaio
1,
Josep Oliva Moncunill
1,
Jose Luis Cortina Palas
2,
Monica Mariana Davila Lima
1 and
Grethel Tamara Herrera La Rosa
1
1
Departament d’Enginyeria Minera, Industrial i TIC, Escola Politècnica Superior d’Enginyeria de Manresa, Universitat Politècnica de Catalunya, Av. Bases de Manresa 61-63, 08242 Manresa, Spain
2
Departament d´Enginyeria Química, Campus Diagonal Besòs, Edifici I, Eduard Maristany, 16, Sant Andrá de Besòs, 08930 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Buildings 2024, 14(7), 2226; https://doi.org/10.3390/buildings14072226
Submission received: 6 June 2024 / Revised: 28 June 2024 / Accepted: 3 July 2024 / Published: 19 July 2024
(This article belongs to the Section Building Materials, and Repair & Renovation)
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Abstract

The present work analyses the physical characteristics of aggregates recovered with the waterjigging process from comminuted concrete. In this work, conventional concrete (C16/20) was crushed to a top size of 20 mm with a jaw crusher and classified in a size range of 5 to 20 mm. The densimetric distribution analysis was carried out in a densimetric range of 2.4 to 2.8 g/cm3, and the cement paste was dissolved from all granulometric ranges to analyze the composition (sand, cement paste, and aggregates) of each part and define the possibilities of materials to recover. A two-stage water jig concentration process was used, generating a cleaner material in the first stage and a re-cleaner material in the second jigging stage. The physical properties of the material inserted in the feed and the material generated in the first and second stages were analyzed to compare them with natural aggregates. The results indicate the viability of recovering 47.8% of the coarse aggregates present in the concrete feed in the re-cleaner material, with 84% of particles having a density higher than 2.6 g/cm3. These characteristics are similar to those found in natural aggregates.
Keywords: concrete; physical proprieties; aggregates; concentration; jigging process concrete; physical proprieties; aggregates; concentration; jigging process

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MDPI and ACS Style

Teixeira, A.B.; Sampaio, C.H.; Moncunill, J.O.; Cortina Palas, J.L.; Lima, M.M.D.; La Rosa, G.T.H. Analysis of Physical Properties of Coarse Aggregates Recovered from Demolished Concrete with a Two-Stage Water Jigs Process for Reuse as Aggregates in Concrete. Buildings 2024, 14, 2226. https://doi.org/10.3390/buildings14072226

AMA Style

Teixeira AB, Sampaio CH, Moncunill JO, Cortina Palas JL, Lima MMD, La Rosa GTH. Analysis of Physical Properties of Coarse Aggregates Recovered from Demolished Concrete with a Two-Stage Water Jigs Process for Reuse as Aggregates in Concrete. Buildings. 2024; 14(7):2226. https://doi.org/10.3390/buildings14072226

Chicago/Turabian Style

Teixeira, Artur Bressanelli, Carlos Hoffmann Sampaio, Josep Oliva Moncunill, Jose Luis Cortina Palas, Monica Mariana Davila Lima, and Grethel Tamara Herrera La Rosa. 2024. "Analysis of Physical Properties of Coarse Aggregates Recovered from Demolished Concrete with a Two-Stage Water Jigs Process for Reuse as Aggregates in Concrete" Buildings 14, no. 7: 2226. https://doi.org/10.3390/buildings14072226

APA Style

Teixeira, A. B., Sampaio, C. H., Moncunill, J. O., Cortina Palas, J. L., Lima, M. M. D., & La Rosa, G. T. H. (2024). Analysis of Physical Properties of Coarse Aggregates Recovered from Demolished Concrete with a Two-Stage Water Jigs Process for Reuse as Aggregates in Concrete. Buildings, 14(7), 2226. https://doi.org/10.3390/buildings14072226

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