Characterisation of Ground Coal Bottom Ash With Different Grinding Times

Mohd Khairy, Burhanudin and Mohd Haziman, Wan Ibrahim and Putra Jaya, Ramadhansyah and B. Sri, Umniati (2023) Characterisation of Ground Coal Bottom Ash With Different Grinding Times. International Journal of Sustainable Construction Engineering and Technology, 4 (3). pp. 49-56. ISSN 2180-3242. (Published)

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The physical and chemical composition of Ground Coal Bottom Ash (GCBA) exposed to varying grinding periods is discussed in this article. CBA was pulverised for 20 hours, 30 hours, and 40 hours in a ball mill machine. Particle Size Analyzer (PSA) and X-ray Fluorescence (XRF) instrument were used to characterise GCBA. According to the results of the tests, GCBA with a grinding duration of 40 hours generates the largest percentage of the finest particle (50-1000 nm) at 4%, the specific surface area is 13528.18 cm2/cm3, and the specific gravity (SG) is 2.54. According to the XRF results, there are no significant variations in the chemical compositions of the CBA with varying grinding periods. At 20, 30, and 40 hours grinding time, the primary oxide element for SiO2 is 51.5%, 53.8%, and 52.3%, while Al2O3 is 14.3%, 15.1%, and 14.6%, and Fe2O3 is 5.08%, 5.27%, and 5.07% respectively. The sum of three primary oxide constituents surpasses the 70% ASTM C618 limit for pozzolanic material Class F fly ash. © Universiti Tun Hussein Onn Malaysia Publisher’s Office.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Ground coal bottom ash, grinding time, chemical composition, surface area
Subjects: T Technology > TH Building construction
Faculty/Division: College of Engineering
Faculty of Civil Engineering Technology
Depositing User: PM Dr. Ramdhansyah Putra Jaya
Date Deposited: 19 Oct 2023 06:31
Last Modified: 19 Oct 2023 06:34
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