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

Jian-Guo Dai; Yao Ding

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

Jian-Guo Dai
, Yao Ding

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic 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 language	English
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
Abbreviated title	YRGS2019
Country/Territory	China
City	Shanghai
Period	19/12/19 → 20/12/19

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https://www.researchgate.net/publication/338037377_Performance_Evolution_and_Control_for_Engineering_Structures_-_Proceedings_of_the_9th_Asia-Pacific_Young_Researchers_and_Graduates_Symposium_YRGS_2019

Cite this

Dai, J.-G., & Ding, Y. (2019). Fracture energy and tension-softening behavior of slag-fly ash blended geopolymer concrete. In J. Chen, Q. Yu, & Y. Feng (Eds.), Performance Evolution and Control for Engineering Structures: Proceedings of the 9th Asia-Pacific Young Researchers and Graduates Symposium (YRGS2019) (pp. 8-22). Tongji University Press. https://www.researchgate.net/publication/338037377_Performance_Evolution_and_Control_for_Engineering_Structures_-_Proceedings_of_the_9th_Asia-Pacific_Young_Researchers_and_Graduates_Symposium_YRGS_2019

@inproceedings{648378ecdec642b8ae7c191d1a708f63,

title = "Fracture energy and tension-softening behavior of slag-fly ash blended geopolymer concrete",

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. ",

author = "Jian-Guo Dai and Yao Ding",

year = "2019",

month = dec,

language = "English",

isbn = "978-7-5608-8854-5",

pages = "8--22",

editor = "Jianbing Chen and Qianqian Yu and Yongbo Feng",

booktitle = "Performance Evolution and Control for Engineering Structures",

publisher = "Tongji University Press",

address = "China",

note = "9th Asia-Pacific Young Researchers and Graduates Symposium on Structural Engineering (YRGS 2019), Shanghai, China, 19-20 December 2019<br/>, YRGS2019 ; Conference date: 19-12-2019 Through 20-12-2019",

}

Dai, J-G & Ding, Y 2019, Fracture energy and tension-softening behavior of slag-fly ash blended geopolymer concrete. in J Chen, Q Yu & Y Feng (eds), Performance Evolution and Control for Engineering Structures: Proceedings of the 9th Asia-Pacific Young Researchers and Graduates Symposium (YRGS2019). Tongji University Press, pp. 8-22, 9th Asia-Pacific Young Researchers and Graduates Symposium on Structural Engineering (YRGS 2019), Shanghai, China, 19-20 December 2019
, Shanghai, China, 19/12/19. <https://www.researchgate.net/publication/338037377_Performance_Evolution_and_Control_for_Engineering_Structures_-_Proceedings_of_the_9th_Asia-Pacific_Young_Researchers_and_Graduates_Symposium_YRGS_2019>

Fracture energy and tension-softening behavior of slag-fly ash blended geopolymer concrete. / Dai, Jian-Guo; Ding, Yao.
Performance Evolution and Control for Engineering Structures: Proceedings of the 9th Asia-Pacific Young Researchers and Graduates Symposium (YRGS2019). ed. / Jianbing Chen; Qianqian Yu; Yongbo Feng. Tongji University Press, 2019. p. 8-22.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research

TY - GEN

T1 - Fracture energy and tension-softening behavior of slag-fly ash blended geopolymer concrete

AU - Dai, Jian-Guo

AU - Ding, Yao

PY - 2019/12

Y1 - 2019/12

N2 - 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.

AB - 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.

M3 - Conference article published in proceeding or book

SN - 978-7-5608-8854-5

SP - 8

EP - 22

BT - Performance Evolution and Control for Engineering Structures

A2 - Chen, Jianbing

A2 - Yu, Qianqian

A2 - Feng, Yongbo

PB - Tongji University Press

T2 - 9th Asia-Pacific Young Researchers and Graduates Symposium on Structural Engineering (YRGS 2019), Shanghai, China, 19-20 December 2019<br/>

Y2 - 19 December 2019 through 20 December 2019

ER -

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

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