Abstract
Recently, geopolymer cement (GC) concrete has been extensively researched as a potential alternative to Portland cement (PC) concrete owning to its environmental friendliness. Similar to PC concrete, GC concrete is a brittle material in nature. However, little has been understood on its fracture properties in terms of the fracture energy and the tension-softening curve, both of which are important for the structural analysis and safe application of GC concrete in engineering practice. This paper presents the research findings arisen from a recent PhD project on the static fracture properties of GC concrete as compared to those of PC concrete. The fracture energy and tension-softening behaviors are compared between GC and PC mortar/concrete through extensive three-point bending tests, in considerations of the effects of various material compositions including the fly ash/slag ratio, the modulus ratio, the alkali concentration and water/binder ratio.
| Original language | English |
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| Title of host publication | Performance Evolution and Control for Engineering Structures |
| Subtitle of host publication | Proceedings of the 9th Asia-Pacific Young Researchers and Graduates Symposium (YRGS2019) |
| Editors | Jianbing Chen, Qianqian Yu, Yongbo Feng |
| Publisher | Tongji University Press |
| Pages | 8-22 |
| Number of pages | 15 |
| ISBN (Print) | 978-7-5608-8854-5 |
| Publication status | Published - Dec 2019 |
| Event | 9th Asia-Pacific Young Researchers and Graduates Symposium on Structural Engineering (YRGS 2019), Shanghai, China, 19-20 December 2019 - Shanghai, China Duration: 19 Dec 2019 → 20 Dec 2019 |
Conference
| Conference | 9th Asia-Pacific Young Researchers and Graduates Symposium on Structural Engineering (YRGS 2019), Shanghai, China, 19-20 December 2019 |
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| Abbreviated title | YRGS2019 |
| Country/Territory | China |
| City | Shanghai |
| Period | 19/12/19 → 20/12/19 |