Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties
The increased awareness of sustainability and concerns about global warming have prompted the construction industry to explore green sustainable materials such as geopolymer composites as an eco-friendly alternative to ordinary Portland cement (OPC). This study developed ambient-cured lightweight ge...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2024
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| Online Access: | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/96031 |
| _version_ | 1848766077674192896 |
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| author | Li, Zhixing Chen, Wensu Yin, Z. Ahmed, Mizan Hao, Hong |
| author_facet | Li, Zhixing Chen, Wensu Yin, Z. Ahmed, Mizan Hao, Hong |
| author_sort | Li, Zhixing |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The increased awareness of sustainability and concerns about global warming have prompted the construction industry to explore green sustainable materials such as geopolymer composites as an eco-friendly alternative to ordinary Portland cement (OPC). This study developed ambient-cured lightweight geopolymer composites (LWGPCs) by incorporating different volume fractions of expanded clay (EC). The physical and quasi-static characteristics of LWGPCs with various EC contents were investigated. Empirical formulae for the quasi-static compressive and splitting tensile strength, as well as the elastic modulus of LWGPCs were proposed. A Ø 100-mm split Hopkinson pressure bar (SHPB) system was employed to investigate the dynamic compressive and splitting tensile properties of LWGPCs. The failure processes and failure patterns of LWGPCs, as well as the stress–strain curves and the energy absorption capacities under different strain rates were compared. Based on the testing results, empirical formulae of the DIF (dynamic increase factor) for LWGPCs compressive and split tensile strength as well as the energy absorption capacities were proposed. This study offers valuable insights into the material performance of ambient-cured LWGPCs with EC as sustainable materials under quasi-static and dynamic loading, paving the way for further developing and application of lightweight and sustainable engineering materials in construction. |
| first_indexed | 2025-11-14T11:45:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-96031 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:45:25Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-960312024-11-08T03:12:16Z Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties Li, Zhixing Chen, Wensu Yin, Z. Ahmed, Mizan Hao, Hong The increased awareness of sustainability and concerns about global warming have prompted the construction industry to explore green sustainable materials such as geopolymer composites as an eco-friendly alternative to ordinary Portland cement (OPC). This study developed ambient-cured lightweight geopolymer composites (LWGPCs) by incorporating different volume fractions of expanded clay (EC). The physical and quasi-static characteristics of LWGPCs with various EC contents were investigated. Empirical formulae for the quasi-static compressive and splitting tensile strength, as well as the elastic modulus of LWGPCs were proposed. A Ø 100-mm split Hopkinson pressure bar (SHPB) system was employed to investigate the dynamic compressive and splitting tensile properties of LWGPCs. The failure processes and failure patterns of LWGPCs, as well as the stress–strain curves and the energy absorption capacities under different strain rates were compared. Based on the testing results, empirical formulae of the DIF (dynamic increase factor) for LWGPCs compressive and split tensile strength as well as the energy absorption capacities were proposed. This study offers valuable insights into the material performance of ambient-cured LWGPCs with EC as sustainable materials under quasi-static and dynamic loading, paving the way for further developing and application of lightweight and sustainable engineering materials in construction. 2024 Journal Article http://hdl.handle.net/20.500.11937/96031 10.1016/j.conbuildmat.2024.135800 http://purl.org/au-research/grants/arc/FL180100196 http://creativecommons.org/licenses/by-nc-nd/4.0/ fulltext |
| spellingShingle | Li, Zhixing Chen, Wensu Yin, Z. Ahmed, Mizan Hao, Hong Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties |
| title | Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties |
| title_full | Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties |
| title_fullStr | Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties |
| title_full_unstemmed | Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties |
| title_short | Lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties |
| title_sort | lightweight ambient-cured geopolymer composite with expanded clay: quasi-static and dynamic properties |
| url | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/96031 |