Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams

This work aims to study the possibility of using alkaline activated fly ash in structural members. The work, of an experimental nature, focuses on the evaluation of the behavior of simply supported beams under two symmetrical loads (four-point tests). For such study, 10 beams were built, of which, f...

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Main Authors: Adelino V. Lopes, Sergio M. R. Lopes, Isabel Pinto
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/12/4379
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author Adelino V. Lopes
Sergio M. R. Lopes
Isabel Pinto
author_facet Adelino V. Lopes
Sergio M. R. Lopes
Isabel Pinto
author_sort Adelino V. Lopes
collection DOAJ
description This work aims to study the possibility of using alkaline activated fly ash in structural members. The work, of an experimental nature, focuses on the evaluation of the behavior of simply supported beams under two symmetrical loads (four-point tests). For such study, 10 beams were built, of which, five using fly ash and the remaining five using traditional Portland cement. The test results are compared. Conclusions on the practical application of fly ash in structures were explained and, as mention later in this document, there is room for improvement. This is one of very few works on fly ash alkali activated structures and further studies are necessary in the future. Some aspects, such as shrinkage and deformability are presented as some of the negative points concerning the potential use of fly ash. These are two aspects that need more attention in future investigations.
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spelling doaj.art-0ad224023ea849bfaae426aa409e3d3f2023-11-20T04:58:24ZengMDPI AGApplied Sciences2076-34172020-06-011012437910.3390/app10124379Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar BeamsAdelino V. Lopes0Sergio M. R. Lopes1Isabel Pinto2Institute for Systems and Computers Engineering, Department of Civil Engineering, University of Coimbra, 3030-788 Coimbra, PortugalCentre for Mechanical Engineering, Materials and Processes, Department of Civil Engineering, University of Coimbra, 3030-788 Coimbra, PortugalCentre for Mechanical Engineering, Materials and Processes, Department of Civil Engineering, University of Coimbra, 3030-788 Coimbra, PortugalThis work aims to study the possibility of using alkaline activated fly ash in structural members. The work, of an experimental nature, focuses on the evaluation of the behavior of simply supported beams under two symmetrical loads (four-point tests). For such study, 10 beams were built, of which, five using fly ash and the remaining five using traditional Portland cement. The test results are compared. Conclusions on the practical application of fly ash in structures were explained and, as mention later in this document, there is room for improvement. This is one of very few works on fly ash alkali activated structures and further studies are necessary in the future. Some aspects, such as shrinkage and deformability are presented as some of the negative points concerning the potential use of fly ash. These are two aspects that need more attention in future investigations.https://www.mdpi.com/2076-3417/10/12/4379experimental studyanalytical modelreinforced concretebeamsfly ash alkali activatedbending
spellingShingle Adelino V. Lopes
Sergio M. R. Lopes
Isabel Pinto
Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams
Applied Sciences
experimental study
analytical model
reinforced concrete
beams
fly ash alkali activated
bending
title Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams
title_full Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams
title_fullStr Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams
title_full_unstemmed Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams
title_short Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams
title_sort experimental study on the flexural behavior of alkali activated fly ash mortar beams
topic experimental study
analytical model
reinforced concrete
beams
fly ash alkali activated
bending
url https://www.mdpi.com/2076-3417/10/12/4379
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