Development and Mechanical Testing of Porous-Lightweight Geopolymer Mortar

In this study, a novel porous geopolymer mortar (GP) was produced and tested experimentally. Industrial waste materials/by-products were used as constituents of the GP, along with dune sand. One sample was produced as a control sample for benchmarking. For the rest of the samples, 15%, 30%, and 45%...

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Main Authors: Ghulam Qadir, Yasir Rashid, Ahmed Hassan, Esma Vall, Shamsa Saleh, Khadega Salim
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/11/1/1
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author Ghulam Qadir
Yasir Rashid
Ahmed Hassan
Esma Vall
Shamsa Saleh
Khadega Salim
author_facet Ghulam Qadir
Yasir Rashid
Ahmed Hassan
Esma Vall
Shamsa Saleh
Khadega Salim
author_sort Ghulam Qadir
collection DOAJ
description In this study, a novel porous geopolymer mortar (GP) was produced and tested experimentally. Industrial waste materials/by-products were used as constituents of the GP, along with dune sand. One sample was produced as a control sample for benchmarking. For the rest of the samples, 15%, 30%, and 45% by volume, the solid constituents were replaced with expanded polystyrene foam (EPS) beads. These mortar samples were heat cured to depolymerize the EPS to cause porosity inside the samples. Indoor experiments were conducted to evaluate the response of produced porous GP to high heat flux. The porous samples were able to reduce heat transmission across the opposite surfaces. Induced porosity resulted in a decrement in compressive strength from 77.2 MPa for the control sample to 15.8 MPa for 45% porous sample. However, the limit lies within the standards for partitioning walls in buildings and pavements in urban areas to absorb rainwater.
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spelling doaj.art-e9f49147f7474712bb3047d447b51d5d2023-06-16T15:40:32ZengMDPI AGBuildings2075-53092020-12-01111110.3390/buildings11010001Development and Mechanical Testing of Porous-Lightweight Geopolymer MortarGhulam Qadir0Yasir Rashid1Ahmed Hassan2Esma Vall3Shamsa Saleh4Khadega Salim5School of Civil Engineering, The University of Sydney, Camperdown, NSW 2006, AustraliaFraunhofer Institute for Building Physics, 83626 Valley, GermanyDepartment of Architectural Engineering, United Arab Emirates University, P.O. Box 15551 Al Ain, UAEDepartment of Architectural Engineering, United Arab Emirates University, P.O. Box 15551 Al Ain, UAEDepartment of Architectural Engineering, United Arab Emirates University, P.O. Box 15551 Al Ain, UAEDepartment of Architectural Engineering, United Arab Emirates University, P.O. Box 15551 Al Ain, UAEIn this study, a novel porous geopolymer mortar (GP) was produced and tested experimentally. Industrial waste materials/by-products were used as constituents of the GP, along with dune sand. One sample was produced as a control sample for benchmarking. For the rest of the samples, 15%, 30%, and 45% by volume, the solid constituents were replaced with expanded polystyrene foam (EPS) beads. These mortar samples were heat cured to depolymerize the EPS to cause porosity inside the samples. Indoor experiments were conducted to evaluate the response of produced porous GP to high heat flux. The porous samples were able to reduce heat transmission across the opposite surfaces. Induced porosity resulted in a decrement in compressive strength from 77.2 MPa for the control sample to 15.8 MPa for 45% porous sample. However, the limit lies within the standards for partitioning walls in buildings and pavements in urban areas to absorb rainwater.https://www.mdpi.com/2075-5309/11/1/1geopolymer mortarporous concreteheat transmission reductionrainwater absorptive pavementsnoise diffusion
spellingShingle Ghulam Qadir
Yasir Rashid
Ahmed Hassan
Esma Vall
Shamsa Saleh
Khadega Salim
Development and Mechanical Testing of Porous-Lightweight Geopolymer Mortar
Buildings
geopolymer mortar
porous concrete
heat transmission reduction
rainwater absorptive pavements
noise diffusion
title Development and Mechanical Testing of Porous-Lightweight Geopolymer Mortar
title_full Development and Mechanical Testing of Porous-Lightweight Geopolymer Mortar
title_fullStr Development and Mechanical Testing of Porous-Lightweight Geopolymer Mortar
title_full_unstemmed Development and Mechanical Testing of Porous-Lightweight Geopolymer Mortar
title_short Development and Mechanical Testing of Porous-Lightweight Geopolymer Mortar
title_sort development and mechanical testing of porous lightweight geopolymer mortar
topic geopolymer mortar
porous concrete
heat transmission reduction
rainwater absorptive pavements
noise diffusion
url https://www.mdpi.com/2075-5309/11/1/1
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