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A comparative study on deflection-hardening behavior of ductile alkali-activated composite

Zhang, Shizhe; Nedeljkovi?, Marija; Ghiassi, Bahman; Ye, Guang

Authors

Shizhe Zhang

Marija Nedeljkovi?

Bahman Ghiassi

Guang Ye



Contributors

Viktor Mechtcherine
Editor

Volker Slowik
Editor

Petr Kabele
Editor

Abstract

Alkali-activation technology as an environmental friendly approach to produce construction materials can lead to a great CO2 emission reduction and provide high potential for waste reutilization. Alkali activated materials (AAMs) generally exhibit better durability and comparable or superior mechanical performance in comparison to traditional cementitious materials. However, like cementitious binders, AAMs are inherently brittle (quasi brittle). When it comes to engineering practices, the size effect also contributes to a more severe brittleness, which limits the applications in large scale structures. Fiber reinforcement is one of the solutions, which can be used to control the brittleness of AAMs. This paper presents a comparative study on the deflection-hardening behavior of ductile alkali-activated slag/fly ash (DAASF) composites reinforced with three types of synthetic fibers. All the developed DAASFs exhibited a deflection hardening with multiple cracking behavior under four-point bending tests. The influence of different fiber types, different slag/fly ash ratio as well as liquid/solid (L/S) ratio were investigated. The obtained results are a first step contribution to understanding the feasibility of using different fiber types in AAMs and development of mixture design of DAASF composites.

Citation

Zhang, S., Nedeljković, M., Ghiassi, B., & Ye, G. (2016). A comparative study on deflection-hardening behavior of ductile alkali-activated composite. In V. Mechtcherine, V. Slowik, & P. Kabele (Eds.), Strain-hardening cement-based composites (123-130). https://doi.org/10.1007/978-94-024-1194-2_14

Conference Name SHCC: International Conference on Strain-Hardening Cement-Based Composites
Conference Location Dresden, Germany
Start Date Sep 18, 2017
End Date Sep 20, 2017
Acceptance Date Jun 1, 2017
Online Publication Date Sep 4, 2017
Publication Date Sep 5, 2016
Deposit Date Aug 19, 2018
Publicly Available Date Mar 28, 2024
Electronic ISSN 2211-0852
Pages 123-130
Series Title RILEM bookseries
Series Number 15
Series ISSN 2211-0852
Book Title Strain-hardening cement-based composites
Chapter Number 15
ISBN 9789402411935
DOI https://doi.org/10.1007/978-94-024-1194-2_14
Public URL https://nottingham-repository.worktribe.com/output/973212
Publisher URL https://www.springer.com/gb/book/9789402411935
Additional Information Funders:
National Scientific Foundation of China (NSFC)
Netherlands Organisation for Scientific Research (NWO)
European Union’s Marie Curie Individual Fellowship program under REA grant agreement No. 701531.