A Comprehensive Characterization and Determination of Fly Ashes in Indonesia Using Different Methods

• Published in: Applied Mechanics and Materials Vol. 754-755; no. Advanced Materials Engineering and Technology III; pp. 320 - 325
• Main Authors: Ulum, Muhammad Bahrul, Triwulan, Triwulan, Ekaputri, Januarti Jaya, Bayuaji, Ridho, Susanto, Tri Eddy, Al Bakri Abdullah, Mohd Mustafa
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 20.04.2015
• Subjects: Cements; Electric power plants; Fly ash; Indonesia; Mechanical properties; Mortars; Pastes; Physical properties; Characterization; Fly Ash; Mortar; Strength Activity Index
• ISBN: 9783038354345; 3038354341
• ISSN: 1660-9336; 1662-7482; 1662-7482
• DOI: 10.4028/www.scientific.net/AMM.754-755.320

This paper presents an observation on fly ash quality in East Jawa, Indonesia. The ash samples were collected from 16 fly ashes produced by some Indonesian power plants. The samples are majority categorized as class F fly ashes with good pozzolanic characteristics according to the standard. The samples were examined for their physical, chemical and mechanical properties with compression test. The test was conducted by making some mortars and paste containing fly ash as cement replacement in accordance with three methods. The compressive strength results were compared with the control specimens made from ordinary Portland cement to obtain a strength activity index (SAI). The results showed that physical properties of fly ash influenced the mechanical properties of mortars more than those showed by chemical characterization.