Nur Farah Aziera, Jamaludin and Khairunisa, Muthusamy and Mohd Faizal, Md Jaafar and Zuraina, Ali and Zaiton, Abdul Majid and Ismail, Mohamed A. (2024) Preliminary investigation on spent garnet as a novel supplementary cementitious material. Construction and Building Materials, 451 (138789). pp. 1-16. ISSN 0950-0618. (Published)
|
Pdf
Preliminary investigation on spent garnet as a novel supplementary cementitious material_ABST.pdf Download (265kB) | Preview |
|
![[img]](http://umpir.ump.edu.my/style/images/fileicons/other.png) |
Pdf
Preliminary investigation on spent garnet as a novel supplementary cementitious material.pdf Restricted to Repository staff only Download (6MB) | Request a copy |
Abstract
The escalating global demand for cement, a fundamental material in infrastructure development, has exacerbated environmental challenges, particularly through significant carbon dioxide (CO₂) emissions, which account for approximately 8.3 % of global anthropogenic CO₂ output. This research explores the potential of spent garnet powder, a byproduct of abrasive water jet machining, as a sustainable supplementary cementitious material (SCM) to mitigate these impacts. The spent garnet powder, characterized by a high concentration of silicon dioxide (SiO₂), aluminum oxide (Al₂O₃), and iron oxide (Fe₂O₃), was subjected to rigorous analysis. X-ray Fluorescence (XRF) confirmed its chemical suitability for pozzolanic applications, while laser particle size analysis revealed a finer granulometry relative to Ordinary Portland Cement (OPC), which is advantageous for enhancing pozzolanic reactivity. Scanning Electron Microscopy (SEM) demonstrated the angular and irregular morphology of the garnet particles, which is conducive to improved interfacial bonding within the cement matrix. X-ray Diffraction (XRD) identified active mineral phases that are critical for promoting pozzolanic reactions, and Thermogravimetric Analysis (TGA) demonstrated the material’s superior thermal stability, with minimal decomposition at elevated temperatures. Fourier Transform Infrared Spectroscopy (FTIR) identified strong silicon-oxygen (Si-O) and aluminum-oxygen (Al-O) bond structures, indicative of robust pozzolanic potential. The Strength Activity Index (SAI) and Frattini tests further substantiated the pozzolanic activity, revealing that a 10 % replacement of OPC with SGP not only enhances compressive strength but also meets the stringent requirements of ASTM C618. Additionally, the economic analysis underscores the cost-effectiveness of utilizing spent garnet powder, presenting a viable strategy for reducing both production costs and CO₂ emissions in the cement industry. This study conclusively positions spent garnet powder as a highly promising supplementary cementitious material, with significant implications for advancing sustainable construction practices and reducing the environmental footprint of cement production.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Cement; Environmental impact; Pozzolanic activity; Spent garnet powder; Sustainable supplementary cementitious material |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction |
| Faculty/Division: | Institute of Postgraduate Studies Center for Modern Languages Faculty of Civil Engineering Technology |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 19 Nov 2024 06:02 |
| Last Modified: | 19 Nov 2024 06:02 |
| URI: | http://umpir.ump.edu.my/id/eprint/42945 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |