Mechanical Performance, Microstructure, and Porosity Evolution of Fly Ash Geopolymer after Ten Years of Curing Age-Reference-Cited by-同舟云学术

Mechanical Performance, Microstructure, and Porosity Evolution of Fly Ash Geopolymer after Ten Years of Curing Age

Published:2023-01-27 Issue:3 Volume:16 Page:1096
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Aziz Ikmal Hakem A.¹^ORCID,Abdullah Mohd Mustafa Al Bakri¹²,Razak Rafiza Abd¹³^ORCID,Yahya Zarina¹³,Salleh Mohd Arif Anuar Mohd¹²,Chaiprapa Jitrin⁴,Rojviriya Catleya⁴,Vizureanu Petrica⁵^ORCID,Sandu Andrei Victor⁵^ORCID,Tahir Muhammad FaheemMohd¹²,Abdullah Alida¹⁶^ORCID,Jamaludin Liyana¹⁶^ORCID

Affiliation:

1. Centre of Excellence Geopolymer & Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Perlis 01000, Malaysia

2. Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis 01000, Malaysia

3. Faculty of Civil Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis 01000, Malaysia

4. Synchrotron Light Research Institute, Muang, Nakhon Ratchasima 30000, Thailand

5. Faculty of Material Science and Engineering, Gheorghe Asachi Technical University of Iasi, 41 D. Mangeron St., 700050 Iasi, Romania

6. Faculty of Mechanical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis 01000, Malaysia

Abstract

This paper elucidates the mechanical performance, microstructure, and porosity evolution of fly ash geopolymer after 10 years of curing age. Given their wide range of applications, understanding the microstructure of geopolymers is critical for their long-term use. The outcome of fly ash geopolymer on mechanical performance and microstructural characteristics was compared between 28 days of curing (FA28D) and after 10 years of curing age (FA10Y) at similar mixing designs. The results of this work reveal that the FA10Y has a beneficial effect on strength development and denser microstructure compared to FA28D. The total porosity of FA10Y was also lower than FA28D due to the anorthite formation resulting in the compacted matrix. After 10 years of curing age, the 3D pore distribution showed a considerable decrease in the range of 5–30 µm with the formation of isolated and intergranular holes.

Funder

Malaysian Ministry of Education's (MOE) Fundamental Research Grant Scheme

TUIASI

Publisher

MDPI AG

Subject

General Materials Science

Link

https://www.mdpi.com/1996-1944/16/3/1096/pdf

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