Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development
This study reports on formulations and conditions for producing fly ash-based geopolymers with a view to showing that the compressive strength required for construction applications can be obtained without the addition of aggregates, sand, and/or cement. It was shown in a series of experiments const...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/24/5699 |
| _version_ | 1797544731322875904 |
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| author | Rosicky Methode Kalombe Victor Tunde Ojumu Chuks Paul Eze Sammy Mwasaha Nyale John Kevern Leslie Felicia Petrik |
| author_facet | Rosicky Methode Kalombe Victor Tunde Ojumu Chuks Paul Eze Sammy Mwasaha Nyale John Kevern Leslie Felicia Petrik |
| author_sort | Rosicky Methode Kalombe |
| collection | DOAJ |
| description | This study reports on formulations and conditions for producing fly ash-based geopolymers with a view to showing that the compressive strength required for construction applications can be obtained without the addition of aggregates, sand, and/or cement. It was shown in a series of experiments constituting at least 73% fly ash that a compressive strength of up to 90 MPa can be obtained depending on the curing conditions. While high alkalinity resulted in stronger materials, the results showed about 40% savings in CO<sub>2</sub> emissions without using sand and cement. Such materials are suited for construction applications with minimal environmental impact. |
| first_indexed | 2024-03-10T14:04:37Z |
| format | Article |
| id | doaj.art-18f5ae771d0246329bac3cc71ed47879 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T14:04:37Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-18f5ae771d0246329bac3cc71ed478792023-11-21T00:43:53ZengMDPI AGMaterials1996-19442020-12-011324569910.3390/ma13245699Fly Ash-Based Geopolymer Building Materials for Green and Sustainable DevelopmentRosicky Methode Kalombe0Victor Tunde Ojumu1Chuks Paul Eze2Sammy Mwasaha Nyale3John Kevern4Leslie Felicia Petrik5Department of Chemical Engineering, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, Cape Town, Western Cape 7535, South AfricaDepartment of Chemical Engineering, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, Cape Town, Western Cape 7535, South AfricaDepartment of Chemistry, University of the Western Cape, Private Bag X17, Bellville 7535, South AfricaWater and Environment Unit, Council for Geoscience, 280 Pretoria Street, Silverton, Pretoria 0184, South AfricaDepartment of Civil and Mechanical Engineering, University of Missouri-Kansas City, 5110 Rockhill, Kansas City, MO 64110, USADepartment of Chemistry, University of the Western Cape, Private Bag X17, Bellville 7535, South AfricaThis study reports on formulations and conditions for producing fly ash-based geopolymers with a view to showing that the compressive strength required for construction applications can be obtained without the addition of aggregates, sand, and/or cement. It was shown in a series of experiments constituting at least 73% fly ash that a compressive strength of up to 90 MPa can be obtained depending on the curing conditions. While high alkalinity resulted in stronger materials, the results showed about 40% savings in CO<sub>2</sub> emissions without using sand and cement. Such materials are suited for construction applications with minimal environmental impact.https://www.mdpi.com/1996-1944/13/24/5699fly ashgeopolymercompressive strengthcarbon dioxideconstruction |
| spellingShingle | Rosicky Methode Kalombe Victor Tunde Ojumu Chuks Paul Eze Sammy Mwasaha Nyale John Kevern Leslie Felicia Petrik Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development Materials fly ash geopolymer compressive strength carbon dioxide construction |
| title | Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development |
| title_full | Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development |
| title_fullStr | Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development |
| title_full_unstemmed | Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development |
| title_short | Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development |
| title_sort | fly ash based geopolymer building materials for green and sustainable development |
| topic | fly ash geopolymer compressive strength carbon dioxide construction |
| url | https://www.mdpi.com/1996-1944/13/24/5699 |
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