Effects of Multiple Supplementary Cementitious Materials on Workability and Segregation Resistance of Lightweight Aggregate Concrete

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Title: Effects of Multiple Supplementary Cementitious Materials on Workability and Segregation Resistance of Lightweight Aggregate Concrete
Authors: Solak, Afonso M. | Tenza-Abril, Antonio José | Saval Pérez, José Miguel | García Vera, Victoria Eugenia
Research Group/s: Tecnología de Materiales y Territorio (TECMATER)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Supplementary cementitious materials | Silica fume | Fly ash | Posidonia oceanica ash | Segregation | Lightweight aggregate concrete (LWAC) | Compaction | Vibration
Knowledge Area: Ingeniería de la Construcción
Issue Date: 20-Nov-2018
Publisher: MDPI
Citation: Solak AM, Tenza-Abril AJ, Saval JM, García-Vera VE. Effects of Multiple Supplementary Cementitious Materials on Workability and Segregation Resistance of Lightweight Aggregate Concrete. Sustainability. 2018; 10(11):4304. doi:10.3390/su10114304
Abstract: In view of the global sustainable development, it is imperative that supplementary cementing materials (SCM) be used for replacing cement in the concrete industry and several researchers have shown that mineral admixtures can enhance the workability of lightweight aggregate concrete (LWAC) mixture and its strength. In view of the beneficial effects of using SCM in LWAC, this article aims to verify the possible influence of the use of different types of SCM in the segregation phenomenon of LWAC. Three different SCM were studied: Silica Fume (SF), Fly Ash (FA) and Posidonia oceanica Ash (PA). For each SCM, three mixtures were prepared, considering three different percentage substitutions of cement. An image analysis technique was applied to estimate the segregation in each sample. The results show that a substitution of cement by other materials with different grain size, considering a constant water binder ratio, may also result in a variation of the consistency of concrete and the viscosity of the mortar matrix, which may contribute to increase or reduce segregation.
Sponsor: This research was supported by the University of Alicante (GRE13-03) and (VIGROB-256).
URI: http://hdl.handle.net/10045/83738
ISSN: 2071-1050
DOI: 10.3390/su10114304
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 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/su10114304
Appears in Collections:INV - TECMATER - Artículos de Revistas

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