Engineered Geopolymer Composites (EGC) with Ultra-high Strength and Ductility

Jian Cong Lao; Bo Tao Huang; Ling Yu Xu; Jian Guo Dai; Surendra P. Shah

doi:10.1007/978-3-031-15805-6_4

Engineered Geopolymer Composites (EGC) with Ultra-high Strength and Ductility

Jian Cong Lao
, Bo Tao Huang
, Ling Yu Xu
, Jian Guo Dai
, Surendra P. Shah

Research output: Chapter in book / Conference proceeding › Chapter in an edited book (as author) › Academic research › peer-review

4 Citations (Scopus)

Abstract

Engineered Geopolymer Composites (EGC), also known as Strain-Hardening Geopolymer Composites (SHGC), are considered more environmentally friendly than their cement-based counterpart. This study for the first time presents EGC with an ultra-high compressive strength (i.e., over 150 MPa) and an ultra-high tensile ductility (i.e., over 9%) simultaneously. The blended use of fly ash (FA), ground granulated blast slag (GGBS), silica fume, alkali activator, and ultra-high-molecular-weight polyethylene fibers led to the successful development of “Ultra-high-strength & ductility EGC (UHSD-EGC)”. The UHSD-EGC were characterized with excellent multiple cracking and strain-hardening features. In addition, it was found that microstructures of FA-rich geopolymer matrix were looser than those with lower FA/GGBS ratios. The findings arising from this study provided a sound basis for developing EGC materials with ultra-high mechanical properties for sustainable and resilient infrastructure.

Original language	English
Title of host publication	RILEM Bookseries
Publisher	Springer Science and Business Media B.V.
Pages	34-42
Number of pages	9
DOIs	https://doi.org/10.1007/978-3-031-15805-6_4
Publication status	Published - Feb 2023

Publication series

Name	RILEM Bookseries
Volume	39
ISSN (Print)	2211-0844
ISSN (Electronic)	2211-0852

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

Compressive strength
Engineered Geopolymer Composites (EGC)
Multiple cracking
Strain-Hardening Geopolymer Composite (SHGC)
Tensile ductility

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanics of Materials

More information

10.1007/978-3-031-15805-6_4

Cite this

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abstract = "Engineered Geopolymer Composites (EGC), also known as Strain-Hardening Geopolymer Composites (SHGC), are considered more environmentally friendly than their cement-based counterpart. This study for the first time presents EGC with an ultra-high compressive strength (i.e., over 150 MPa) and an ultra-high tensile ductility (i.e., over 9\%) simultaneously. The blended use of fly ash (FA), ground granulated blast slag (GGBS), silica fume, alkali activator, and ultra-high-molecular-weight polyethylene fibers led to the successful development of “Ultra-high-strength \& ductility EGC (UHSD-EGC)”. The UHSD-EGC were characterized with excellent multiple cracking and strain-hardening features. In addition, it was found that microstructures of FA-rich geopolymer matrix were looser than those with lower FA/GGBS ratios. The findings arising from this study provided a sound basis for developing EGC materials with ultra-high mechanical properties for sustainable and resilient infrastructure.",

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Engineered Geopolymer Composites (EGC) with Ultra-high Strength and Ductility. / Lao, Jian Cong; Huang, Bo Tao; Xu, Ling Yu et al.
RILEM Bookseries. Springer Science and Business Media B.V., 2023. p. 34-42 (RILEM Bookseries; Vol. 39).

Research output: Chapter in book / Conference proceeding › Chapter in an edited book (as author) › Academic research › peer-review

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AB - Engineered Geopolymer Composites (EGC), also known as Strain-Hardening Geopolymer Composites (SHGC), are considered more environmentally friendly than their cement-based counterpart. This study for the first time presents EGC with an ultra-high compressive strength (i.e., over 150 MPa) and an ultra-high tensile ductility (i.e., over 9%) simultaneously. The blended use of fly ash (FA), ground granulated blast slag (GGBS), silica fume, alkali activator, and ultra-high-molecular-weight polyethylene fibers led to the successful development of “Ultra-high-strength & ductility EGC (UHSD-EGC)”. The UHSD-EGC were characterized with excellent multiple cracking and strain-hardening features. In addition, it was found that microstructures of FA-rich geopolymer matrix were looser than those with lower FA/GGBS ratios. The findings arising from this study provided a sound basis for developing EGC materials with ultra-high mechanical properties for sustainable and resilient infrastructure.

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Engineered Geopolymer Composites (EGC) with Ultra-high Strength and Ductility

Abstract

Publication series

UN SDGs

Keywords

ASJC Scopus subject areas

More information

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