Assessment of the use of raw fly ash with high loss on ignition in concrete
Abstract: 55
| 
PDF: 37 
##plugins.themes.academic_pro.article.main##
Author
Keywords:
Raw fly ash
loss on ignition
slump
unit weight
compressive strength
ultrasonic pulse velocity
durability
Abstract
The use of fly ash to partially replace cement in concrete is one of the effective ways of reducing the negative effect on the environment due to the use and production of cement. However, properties of concrete are strongly associated with the quality of fly ash used. This paper investigates the applicable use of raw fly ash, which is taken from Nghi Son coal power plant, Vietnam with a high loss on ignition in concrete. There are two group mixtures with different water-to-binder ratios of 0.35 and 0.45. In each group, fly ash is used to replace 10%, 20%, and 30% cement. Test results indicate that raw fly ash can be used to replace up to 20% cement with improved compressive strength. Moreover, with increasing the fly ash content, workability of fresh concrete increases while its unit weight decreases. Furthermore, all tested concrete mixtures show the good durability performance with ultrasonic pulse velocity values of greater than 4100 m/s.
References
-
[1] A. Bilodeau, and M. Malhotra, “High-volume fly ash system: Concrete solution for sustainable development”, ACI Material Journal, 2000, Vol. 97, No. 1, pp. 41-47.
[2] P. R. Wankhede, and V. A. Fulari, “Effect of fly ash on properties of concrete”, International Journal of Emerging Technology and Advanced Engineering, 2014, Vol. 4, No. 7, pp. 284-289.
[3] C. Marthong, and T. P. Agrawal, “Effect of fly ash additive on concrete pro perties”, International Journal of Engineering Research and Applications, 2012, Vol. 2, No. 4, pp. 1986-1991.
[4] R. Bansal, V. Singh, and R. K. Pareek, “Effect on compressive strength with partial replacement of fly ash”, International Journal onEmmerging Technologies, 2015, Vol. 6, No. 1, pp. 1-6.
[5] H. A. Mohamed, “Effect of fly ash and silica fume on compressive strength of self-compacting concrete under different curing conditions”, Ain Shams Engineering Journal, 2011, Vol. 2, pp. 79-86.
[6] T. R. Nail and B. W. Ramme, “Effect of high-lime fly ash content on water demand, time of set, and compressive strength of concrete”, ACI Materials Journal, 1990, Vol. 87, No. 6, pp. 619-626.
[7] Oner, S. Akyuz, and R. Yildiz, “An experimental study on strength development of concrete containing fly ash and optimum usage of fly ash in concrete”, Cement and Concrete Research, 2004, Vol. 35, pp. 1165-1171.
[8] R. Siddique, “Performance characteristics of high-volume class F fly ash concrete”, Cement and Concrete Research, 2003, Vol. 34, pp. 487-493.
[9] G. Li, and X. Zhao, “Properties of concrete incorporating fly ash and ground granulated blast-furnace slag”, Cement and Concrete Composites, 2003, Vol. 25, pp. 293-299.
[10] ASTM C618, Standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete, 2005.
[11] M. Mohebbi, F. Rajabipour, B.E. Scheetz, “Reliability of loss on ignition test for determining the unburned carbon content in fly ash”, World of Coal Ash Conference in Nasvhille, 2015.
[12] K. Wesch, Fly ash in concrete: Properties and performance. Report of Technical Committee 67-FAB use of fly ash in buildings, E&FN Spon, London, 1991.
[13] J. Paya, J. Monzo, M.V. Borrachero, E. Perris, and F. Amahjour, “Thermo gravimetric methods for determining carbon content in fly ashes,” Cement and Concrete Research, 1998, Vol. 28, pp. 675-688.
[14] ACI 211.1, Standard practice for selecting proportions for normal, heavyweight, and mass concrete, 1991.
[15] ASTM C143, Standard test method for slump of hydraulic-cement concrete, 2015.
[16] ASTM C39, Standard test method for compressive strength of cylindrical concrete specimens, 2012.
[17] ASTM C597, Standard test method for pulse veloscity through concrete, 2009.
[18] V. G. Papadakis, “Effect of fly ash on Portland cement systems – Part I. Low-calcium fly ash”, Cement and Concrete Research, 1999, Vol. 29, No. 11, pp. 1727-1736.
[19] A. L. A. Fraay, J. M. Bijen, and Y. M. de Haan, “The reaction of fly ash in concrete a critical examination”, Cement and Concrete Research, 1989, Vol. 19, No. 2, pp. 235-246.
[20] V.M Malhotra, Testing hardened concrete: Nondestructure methods, American Concrete Institute Monograph Series, 1976.
Read more
##plugins.themes.academic_pro.article.sidebar##
Published
Dec 31, 2017
Download
How to Cite
Ngo Si Huy, Huynh Trong Phuoc, Le Thi Thanh Tam. “Assessment of the Use of Raw Fly Ash With High Loss on Ignition in Concrete”. The University of Danang - Journal of Science and Technology, vol. 12, no. 121, Dec. 2017, pp. 11-14, https://jst-ud.vn/jst-ud/article/view/3443.
