Fracture energy and tension-softening behavior of slag-fly ash blended geopolymer concrete

Jian-Guo Dai, Yao Ding

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic research

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 languageEnglish
Title of host publicationPerformance Evolution and Control for Engineering Structures
Subtitle of host publicationProceedings of the 9th Asia-Pacific Young Researchers and Graduates Symposium (YRGS2019)
EditorsJianbing Chen, Qianqian Yu, Yongbo Feng
PublisherTongji University Press
Pages8-22
Number of pages15
ISBN (Print)978-7-5608-8854-5
Publication statusPublished - Dec 2019
Event9th Asia-Pacific Young Researchers and Graduates Symposium on Structural Engineering (YRGS 2019), Shanghai, China, 19-20 December 2019
- Shanghai, China
Duration: 19 Dec 201920 Dec 2019

Conference

Conference9th Asia-Pacific Young Researchers and Graduates Symposium on Structural Engineering (YRGS 2019), Shanghai, China, 19-20 December 2019
Abbreviated titleYRGS2019
CountryChina
CityShanghai
Period19/12/1920/12/19

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