Geo-Congress 2020
Fly Ash-Granulated Rubber Mixture as Lightweight Geomaterial
Publication: Geo-Congress 2020: Geo-Systems, Sustainability, Geoenvironmental Engineering, and Unsaturated Soil Mechanics (GSP 319)
ABSTRACT
In recent times, fly ash and scrap tires are being utilized extensively in geotechnical applications as a fill material due to their favourable properties. Many studies are reported indicating the suitability of soil-tire waste mixtures as geomaterials. In the present study, the viability of using a mixture of granular rubber and fly ash is explored. Granulated rubber of nominal size equal to 9.5 mm, and fly ashes collected from different thermal power plant sources in India are used in the study. Granulated rubber is mixed with fly ash particles in different proportions, i.e., 0%, 9%, 23%, and 37%, and 100% (granulated rubber with respect to the total weight of the mixture). The optimum mix of granulated rubber and fly ash is proposed based on the minimum void ratio obtained on compacted mixtures. The optimum content of granulated rubber is found to be in the range of 35–65% of the mixture (by weight). The shear strength of fly ash-granulated rubber mixtures is tested in large-size direct shear apparatus (size equal to 300 mm x 300 mm x 200 mm; in length, in width, and in width). The shear strength of the mixture is found to increase with the increase in percentage of granulated rubber. In the present study, the variation in the shear strength of mixtures in relation with the volumetric strain response of the mixtures is discussed. The transition of volumetric response from dilative to contractive is observed for the range of granulated rubber-fly ash mixtures tested and is discussed based on granular void ratio.
Get full access to this article
View all available purchase options and get full access to this chapter.
REFERENCES
Arora, S., and Aydilek, A. H. (2005). “Class F Fly-Ash-Amended Soils as Highway Base Materials.” Journal of Materials in Civil Engineering, 17(6), 640–649.
Arulrajah, A., Ali, M. M. Y., Ph, D., Disfani, M. M., and Horpibulsuk, S. (2014). “Recycled-Glass Blends in Pavement Base / Subbase Applications : Laboratory and Field Evaluation.” 26(7).
Arulrajah, A., Kua, T., Phetchuay, C., Horpibulsuk, S., Mahghoolpilehrood, F., and Disfani, M. M. (2011). “Spent Coffee Grounds – Fly Ash Geopolymer Used as an Embankment Structural Fill Material.” 1–8.
Arulrajah, A., Rahman, M. a., Piratheepan, J., Bo, M. W., and Imteaz, M. a. (2013). “Evaluation of Interface Shear Strength Properties of Geogrid-Reinforced Construction and Demolition Materials using a Modified Large Scale Direct Shear Testing Apparatus.” Journal of Materials in Civil Engineering, 26(May), 130714222216001.
Balunaini, U., Kumar Mohan, V. D., Prezzi, M., and Salgado, R. (2014a). “Shear strength of tyre chip–sand and tyre shred–sand mixtures.” 167, 585–595.
Balunaini, U., Yoon, S., Prezzi, M., and Salgado, R. (2014b). “Pullout Response of Uniaxial Geogrid in Tire Shred-Sand Mixtures.” Geotechnical and Geological Engineering, 32(2), 505–523.
Cardoso, R., Silva, R. V., Brito, J., and de Dhir, R. (2015). “Use of recycled aggregates from construction and demolition waste in geotechnical applications: A literature review.” Waste Management, Elsevier Ltd, 49, 131–145.
Carraro, J. A. H., Prezzi, M., and Salgado, R. (2009). “Shear Strength and Stiffness of Sands Containing Plastic or Nonplastic Fines.” Journal of Geotechnical and Geoenvironmental Engineering, 135(9), 1167–1178.
CEA (2018). “CAE, Anual Report 2017-18.” Government of India, Ministry of Power, Central Electricity Authority.
Disfani, M. M., Arulrajah, A., Bo, M. W., and Hankour, R. (2011). “Recycled crushed glass in road work applications.” Waste Management, 31(11), 2341–2351.
Foose, J. G., Craig, H. B., and Bosscher, P. J. (1996). “SAND REINFORCED WITH SHREDDED WASTE TIRES By Gary.” 122(1994), 760–767.
Huang, W. (1990). “The Use of Bottom Ash in Highway Embankments, Subgrades, and Subbases.”
Karnam Prabhakara, B. K., Guda, P. V., and Balunaini, U. (2019). “Optimum Mixing Ratio and Shear Strength of Granulated Rubber–Fly Ash Mixtures.” Journal of Materials in Civil Engineering, 31(4), 4019018.
Kim, B., Prezzi, M., and Salgado, R. (2005). “Geotechnical Properties of Fly and Bottom Ash Mixtures for Use in Highway Embankments.” Journal of Geotechnical and Geoenvironmental Engineering, 131(7), 914–924.
Kim, H., Lee, M. S., Balunaini, U., Prezzi, M., and Siddiki, N. Z. (2010). “Compaction quality control of fly and bottom ash mixture embankment using dynamic cone penetrometer and lightweight deflectometer.” Transportation Research Board, (2009), 1–21.
Kumar, K. P. B., Krishna, G., and Umashankar, B. (2019). “Evaluation of Waste Foundry Sand and Blast Furnace Steel Slag as Geomaterials.” Geo-Congress 2019, (GSP 312), 203–211.
Prasad, P. S., and Ramana, G. V. (2016). “Imperial smelting furnace (zinc) slag as a structural fi ll in reinforced soil structures.” Geotextiles and Geomembranes, 44, 406–428.
Rai, A. K., Paul, B., Singh, G., and Science, E. (2010). “A Study on Backfill Properties and Use of Fly Ash for Highway Embankments.” I(Ii).
Rao, G. V., and Dutta, R. K. (2006). “Compressibility and strength behaviour of sand-tyre chip mixtures.” Geotechnical and Geological Engineering, 24(3), 711–724.
Simoni, A., and Houlsby, G. T. (2006). “The direct shear strength and dilatancy of sand-gravel mixtures.” Geotechnical and Geological Engineering, 24(3), 523–549.
Yoon, S., Ph, D., Balunaini, U., Yildirim, I. Z., Prezzi, M., Ph, D., and Siddiki, N. Z. (2009). “Construction of an Embankment with a Fly and Bottom Ash Mixture : Field Performance Study.” (June), 271–278.
Information & Authors
Information
Published In
Geo-Congress 2020: Geo-Systems, Sustainability, Geoenvironmental Engineering, and Unsaturated Soil Mechanics (GSP 319)
Pages: 115 - 123
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8282-7
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
Published in print: Feb 21, 2020
ASCE Technical Topics:
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.