Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development
| Autor: | Chuks Paul Eze, Victor Tunde Ojumu, Sammy M. Nyale, John T. Kevern, Rosicky Methode Kalombe, Leslie F. Petrik |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
construction
Alkalinity 02 engineering and technology 010501 environmental sciences 01 natural sciences lcsh:Technology Article chemistry.chemical_compound General Materials Science lcsh:Microscopy Curing (chemistry) geopolymer 0105 earth and related environmental sciences lcsh:QC120-168.85 Cement lcsh:QH201-278.5 lcsh:T carbon dioxide 021001 nanoscience & nanotechnology Pulp and paper industry compressive strength Geopolymer Compressive strength fly ash chemistry lcsh:TA1-2040 Fly ash Carbon dioxide Environmental science lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials Volume 13 Issue 24 Materials, Vol 13, Iss 5699, p 5699 (2020) |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma13245699 |
| Popis: | 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 CO2 emissions without using sand and cement. Such materials are suited for construction applications with minimal environmental impact. |
| Databáze: | OpenAIRE |
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