Suitability of Class F Flyash for Construction Industry: An Indian Scenario

The present study evaluates the properties of class F fly ash as a replacement of natural materials in civil engineering construction industry. The low-lime flash similar to class F is the prime variety generated in India, although it has significantly smaller volumes of high-lime fly ash as compared to class C. The chemical and physical characterization of the sample is carried out with the number of experimental approaches in order to investigate all relevant features present in the samples. For chemical analysis, elementary quantitative results from point analysis and scanning electron microscopy (SEM)/dispersive spectroscopy (EDS) techniques were used to identify the element images of different fractions. The physical properties found very close to the range of common soils. Furthermore, the fly ash-based bricks were prepared by the same sample of class F fly ash and the results of compressive strength similar to that of Standard Clay Brick Grade 1 available in the local market of India.

• M. N. Akhtar
• J. N. Akhtar

• Flyash
• class F
• class C
• chemical
• physical
• SEM
• EDS.

[1] ACAA, “Federal highway association report,” Am. Coal Ash Assoc., 2003.
[2] “American Standards for Testing and Materials,” Standard C618-05, 2005.
[3] “American Standards for Testing and Materials,” Standard C593-06, 2006.
[4] S. K. Sahu, R. C. Bhangare, P. Y. Ajmal, S. Sharma, G. G. Pandit, and V. D. Puranik, “Characterization and quantification of persistent organic pollutants in fly ash from coal fueled thermal power stations in India,” Polar Chem., vol. 92, no. 1, pp. 92–96, May 2009.
[5] A. Dwived and M. Kumar Jain, “Fly ash – waste management and overview: A Review,” Recent Res. Sci. Technol., vol. 6, no. 1, pp. 30–35, 2014.
[6] J. Alam and M. N Akhtar, “Fly Ash Utilization In Different Sectors In Indian Scenario,” RS Publ., vol. 1, no. 1, pp. 1–14, August2011.
[7] “The Built Envison,” Central Building Research Institute Roorkee, ROORKEE, Newsletter from CBRI ENVIS Centre of fly ash, 2016.
[8] “Report on fly ash generation at coal/lignite based thermal power stations and its utilization in the country for the year 2015-16,” central electricity authority new Delhi, new delhi, Mar. 2016.
[9] T.-P. Chang, F.-C. Chung, and H.-C. Lin, “A Mix Proportioning Methodology for High Performance Concrete,” J. Chin. Inst. Eng., vol. 19, pp. 645–655, 1996.
[10] J. N. Akhtar, J. Alam, and M. N. Akhtar, “An experimental study on fibre reinforced fly ash based lime bricks,” Int. J. Phys. Sci., vol. 5, no. 11, pp. 1688–1695, Sep. 2010.
[11] J. Alam, M. Khan, and M. Akhtar, “Fly Ash Based Brick Tiles: An Experimental Study,” Int. J. Emerg. Trends Eng. Dev., vol. 6, no. 3, pp. 35–44, 2013.
[12] M. N. Akhtar, M. A. Khan, and J. Akhtar, “Use of the Falling-head Method to Assess Permeability of Fly Ash Based Roof Tiles with Waste Polythene Fibre,” Int. J. Sci. Eng. Res., vol. 5, no. 12, pp. 476–483, 2014.
[13] M. N. Akhtar, J. N. Akhtar, A. H. O.H, and A. Halahla, “Sustainable Fly Ash Based Roof Tiles with Waste Polythene Fibre: An Experimental Study,” Open J. Civ. Eng., vol. 6, pp. 314–327, 2016.
[14] H. S. Dhindsa, R. D. Sharma, and Rakesh Kumar, “Role of fly ash in improving soil physical properties and yield of wheat (Triticum aestivum),” Agric. Sci. Dig., vol. 36, no. 2, pp. 97–101, Jun. 2016.
[15] P. HT, Lund IJ, and Page AL, “Potential use of flyash as a liming material,” in Environmental chemistry and cycling processes, Conf-760429, Springfield, VA: US Department of Commerc, 1978, pp. 504– 515.