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

Abstract:

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.

• Periodical: Applied Mechanics and Materials (Volumes 754-755)
• Pages: 320-325
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.754-755.320
• Online since: April 2015
• Authors: Januarty Jaya Ekaputri*, Muhammad Bahrul Ulum, Triwulan Triwulan, Ridho Bayuaji, Tri Eddy Susanto, Mohd Mustafa Al Bakri Abdullah
• Keywords: Characterization, Fly Ash, Mortar, Strength Activity Index

References

[1] American Society for Testing and Materials (ASTM) C618, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, West Conshohocken, USA (2006).

DOI: 10.1520/c0618-00

[2] A. F. Jimenez and A. Palomo, Characterization of fly ashes. Potential reactivity as alkaline cements, Fuel, 82 (2003), pp.2259-2265.

DOI: 10.1016/s0016-2361(03)00194-7

[3] H. A. Foner, T. L. Robl, J. C. Hower, and U. M Graham, Characterization of fly ash from Israel with reference to its possible utilization, Fuel, 78 (1999), pp.215-223.

DOI: 10.1016/s0016-2361(98)00140-9

[4] American Society for Testing and Materials (ASTM) C311, Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete, West Conshohocken, USA (2006).

DOI: 10.1520/c0311_c0311m-16

[5] American Society for Testing and Materials (ASTM) 1240, Standard Specification for Silica Fume Used in Cementitious Mixtures, USA (2006).

[6] S. K. Das and Yudhbir, A simplified model for prediction of pozzolanic characteristics of fly ash based on chemical composition, Cement and Concrete Research 36 (2006), p.1827–1832.

DOI: 10.1016/j.cemconres.2006.02.020

[7] Q. Zeng, K. Li, T. Fen-ching and P. Dangla, Pore structure characterization of cement pastes blended with high-volume fly ash, Concrete and Cement Research, 42 (2012), pp.194-204.

DOI: 10.1016/j.cemconres.2011.09.012

[8] S. Yazici and H. S. Arel, Effects of fly ash fineness on the mechanical properties of concrete, Indian Academy of Sciences, 37 (2012) Part 3, p.389–403.

DOI: 10.1007/s12046-012-0083-3

[9] J. J. Ekaputri, Triwulan., K. A. Priadana, T. E. Susanto and S. Junaedi, Physico-Chemical Characterization of Fly Ash, The World Congress on Advances in Structural Engineering and Mechanics (ASEM13), Jeju, South Korea, (2013).

[10] N. Moreno, X. Querol, J. M. Andres, K. Stanton, M. Towler, H. Nugteren, M. Janssen-Jurkovicova. and R. Jones , Physico-chemical characterics of European pulverized coal combustion fly ash, Fuel, 84 (2005), pp.1351-1363.

DOI: 10.1016/j.fuel.2004.06.038

[11] R. Walker and S. Pavia, Physical properties and reactivity of pozzolans, and their influence on the properties of lime-pozzolan pastes, Material and Structures, 44 (2011), pp.1139-1150.

DOI: 10.1617/s11527-010-9689-2

[12] Van Jaarsveld, J.G.S., Van Deventer, J.S.J., and Lukey, G. C, The characterisation of source materials in fly ash-based geopolymers,. Science Direct. Materials Letters 57 (2003), p.1272–1280.

DOI: 10.1016/s0167-577x(02)00971-0

[13] Thomas, Michael, Optimizing the Use of Fly Ash in Concrete, Journal of Portland Cement Association, ACI (2011), pp.1-19.