Behaviour changes of ground granulated blast furnace slag geopolymers at high temperature-Reference-Cited by-同舟云学术

Behaviour changes of ground granulated blast furnace slag geopolymers at high temperature

Published:2020-10 Issue:10 Volume:32 Page:465-475
ISSN:0951-7197
Container-title:Advances in Cement Research
language:en
Short-container-title:Advances in Cement Research

Author:

Aziz Ikmal Hakem¹^ORCID,Abdullah Mohd Mustafa Al Bakri²³^ORCID,Heah Cheng-Yong⁴^ORCID,Liew Yun-Ming⁵^ORCID

Affiliation:

1. Research Assistant, Center of Excellence Geopolymer and Green Technology, School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), D/A Pejabat Pos Besar, Kangar, Perlis, Malaysia

2. Associate Professor, Center of Excellence Geopolymer and Green Technology, School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), D/A Pejabat Pos Besar, Kangar, Perlis, Malaysia

3. Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP), D/A Pejabat Pos Besar, Kangar, Perlis, Malaysia

4. Senior Lecturer, Center of Excellence Geopolymer and Green Technology, School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), D/A Pejabat Pos Besar, Kangar, Perlis, Malaysia

5. Senior Lecturer, Center of Excellence Geopolymer and Green Technology, School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), D/A Pejabat Pos Besar, Kangar, Perlis, Malaysia (corresponding author: , )

Abstract

In this paper, the thermal performance of ground-granulated blast furnace slag (GGBFS) geopolymers is investigated. The geopolymers were prepared with sodium-based alkali activator and exposed to elevated temperature (200 to 1000°C) after 28 d of curing at room temperature. The unexposed geopolymers exhibited excellent compressive strength of 95 MPa. The compressive strength reduced to 8·9 MPa at 800°C and increased to 19·8 MPa at 1000°C. The strength regained by 122·5% as compared to the residual strength at 800°C. The crack reduction and partial melting in geopolymers treated at 1000°C signifies crack healing at elevated temperature, which in turn increases the compressive strength. In addition, the formation of crystalline phases of gehlenite (Ca2Al2SiO), mayenite (Ca12Al14O33) and larnite (Ca2SiO4) filled the geopolymer matrix and formed an ordered structure. This further enhanced the strength and high-temperature stability of GGBFS geopolymers.

Publisher

Thomas Telford Ltd.

Subject

General Materials Science,Building and Construction

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jadcr.18.00162

Reference55 articles.

1. Effects of elevated temperatures on the thermal behavior and mechanical performance of fly ash geopolymer paste, mortar and lightweight concrete

2. Performance of geopolymer high strength concrete wall panels and cylinders when exposed to a hydrocarbon fire

3. Durability of geopolymer materials in sodium and magnesium sulfate solutions

4. Thermal behaviour of geopolymers prepared using class F fly ash and elevated temperature curing

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