Calcium leaching resistance of cement composites with liquid-crystal display glass powder

Loading...
Thumbnail Image
Files

Lee10110720.pdf (6.21 MB)

File version

Accepted Manuscript (AM)

Author(s)
Lee, Yujin
Seo, Seunghoon
Doh, Jeung-Hwan
You, Ilhwan
Zi, Goangseup
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2024
Size
File type(s)
Location
Abstract

This study explores the calcium leaching resistance of cement composite with liquid-crystal display glass powder (LCDGP). Authors compare LCDGP with other pozzolanic materials, fly ash and soda-lime glass powder, replacing 20% of the cement. Results show that LCDGP reduces the leaching rate by 47.2% and hardness degradation depth by 28.6%, compared to the fly ash-blended mixture. High pozzolanic reactivity of LCDGP lowers the initial calcium hydroxide and total porosity including a decreased volume of pores exceeding the capillary pore size, resulting in a dense microstructure. Consequently, these effectively delay calcium hydroxide dissolution and calcium-silicate-hydrate decalcification. LCDGP-blended mixture shows the decreased C-S-H gel decalcification depth by 21.4% and exhibits 28.6% less hardness reduction depth compared with fly ash-blended mixture. Based on these findings, authors advocate the potential application of LCDGP as an admixture for concrete structures that are exposed to water.

Journal Title

Journal of Building Engineering

Conference Title
Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement

© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/

Item Access Status
Note

This publication has been entered in Griffith Research Online as an advance online version.

Access the data
Related item(s)
Subject

Building

Civil engineering

Persistent link to this record
Citation

Lee, Y; Seo, S; Doh, J-H; You, I; Zi, G, Calcium leaching resistance of cement composites with liquid-crystal display glass powder, Journal of Building Engineering, 2024, pp. 109607

Collections