Concrete for Precast Blocks: Binary and Ternary Combination of Sewage Sludge Ash with Diverse Mineral Residue
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Title: | Concrete for Precast Blocks: Binary and Ternary Combination of Sewage Sludge Ash with Diverse Mineral Residue |
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Authors: | Baeza Brotons, Francisco | Payá Bernabeu, Jordi | Galao Malo, Oscar | Alberti, Marcos G. | Garcés, Pedro |
Research Group/s: | Ingeniería del Terreno y sus Estructuras (InTerEs) | Tecnología de Materiales y Territorio (TECMATER) | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Civil |
Keywords: | Waste valorisation | Concrete block | Marble dust | Fly ash | Rice husk ash | Mineral additions |
Knowledge Area: | Ingeniería de la Construcción |
Issue Date: | 17-Oct-2020 |
Publisher: | MDPI |
Citation: | Baeza-Brotons F, Payá J, Galao O, Alberti MG, Garcés P. Concrete for Precast Blocks: Binary and Ternary Combination of Sewage Sludge Ash with Diverse Mineral Residue. Materials. 2020; 13(20):4634. https://doi.org/10.3390/ma13204634 |
Abstract: | This paper proposes binary and ternary combinations of sewage sludge ash (SSA) with fly ash (FA), marble dust (MD) and rice husk ash (RHA) as partial replacements of Portland cement in concretes with a similar dosage to that used in precast blocks, with very dry consistency. Several physical-mechanical tests were carried out on concrete specimens with curing ages of 28 and 90 days: density, water absorption, capillary water absorption, ultrasonic pulse velocity and compressive strength. The combinations of residues significantly improve the properties of the cementitious systems: 30% replacement of Portland cement provides strength values similar to the reference sample, showing the synergetic effects of the combination of the mineral additions. The significance of this research relies on the combined use of the mineral additions as well as the use of them for the precast block industry. The results show synergies among the additions and even that some of them showed relevant improvements when they are used in combination, performing better than when used individually. |
URI: | http://hdl.handle.net/10045/110002 |
ISSN: | 1996-1944 |
DOI: | 10.3390/ma13204634 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Peer Review: | si |
Publisher version: | https://doi.org/10.3390/ma13204634 |
Appears in Collections: | INV - INTERES - Artículos de Revistas INV - TECMATER - Artículos de Revistas INV - DMCIA - Artículos de Revistas INV - BIMAEC - Artículos de Revistas |
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Baeza-Brotons_etal_2020_Materials.pdf | 5,55 MB | Adobe PDF | Open Preview | |
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