The Mechanical Performance of Clayey Soils Reinforced with Waste PET Fibers

  • Necmi Yarbaşı
  • Ekrem Kalkan
Keywords: Clayey soil, Waste PET fiber, Mechanical performance, Soil reinforcement, Freeze-thaw


Nowadays, scarcity of good land for construction which is one of important problems for engineers using land increases demand for unsuitable soils. When the mechanical qualities of unsuitable soils are lower than those required, reinforcing can be an option to improve performance, notably in enhancing its strength. Use of waste material is alternative method as low-cost material for soil reinforcing applications. Today, abundant plastic waste pollutants are widely used as reinforcing materials for this purpose. In this study, uniaxial compressive tests were done to determine the resistance behavior of clayey soils reinforced with waste plastic PET fibers. These tests were repeated for the unexposed and exposed samples to freeze-thaw cycles. The freeze-thaw tests were performed with a programmable freeze-thaw cabinet under laboratory conditions. The results obtained from experimental studies have shown that the reinforced clayey soil samples with the waste of the plastic bottle fibers have high strength when compare with the unreinforced sandy soil samples. At the same time, the waste PET fibers increase the resistance of reinforced clayey soil samples against to the freeze-thaw cycles. As a result, Consequently, it is concluded that the waste PET fiber materials can be successfully used for the reinforce of clayey soils in the geotechnical applications.


Acharyya, R., Lahiri, A., Mukherjee, S.P., Raghu, P.V., 2013. Acharyya, R., Lahiri, A., Mukherjee, S.P., Raghu, P.V., 2013. Improvement of undrained shear strength of clayey soil with PET bottle strips. Proceedings of Indian Geotechnical Conference December 22-24, 2013, Roorkee, India.

Akbulut, S., Arasan, S., Kalkan, E., 2007. Modification of clayey soils using scrap tire rubber and synthetic fibers. Applied Clay Science 38, 23-32.

Al-Sabagh, A.M., Yehia, F.Z., Eshaq, G., Rabie, A.M., ElMetwally, A.E., 2016. Greener routes for recycling of polyethylene terephthalate. Egyptian Journal of Petroleum 25, 53-64.

Altun, S., Sezer, S., Erol, A., 2009. The effects of additives and curing conditions on the mechanical behavior of a silty soil. Cold Regions Science and Technology 56, 135-140.

Anabal, F.Y., 2007. Evaluation of wastes in industry. Gazi University, Graduate School of Natural and Applied Sciences Environmental Thesis, Ankara, Turkey. 2007.

Arulrajah, A., Perera, S., Wong, Y.C., Horpibulsuk, S., Maghool, F., 2020. Stiffness and flexural strength evaluation of cement stabilized PET blends with demolition wastes. Construction and Building Materials 239, 117819 (1-13).

ASTM C 666-92, 1999. Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing, Volume 04.02. Concrete and Aggregates. American Society

ASTM D 2166, 2006. Standard Test Method for Unconfined Compressive Strength of Cohesive Soil. American Society for Testing and Materials. West Conshohocken, PA, USA.

ASTM D 698-78, 2012. Fundamental Principles of soil Compaction, American Society for Testing and Materials. West Conshohocken, PA, USA.

ASTM D 560 A, 2003. Standard Test Methods for Freezing and Thawing Compacted Soil-Cement Mixtures. West Conshohocken, PA, USA.

Babu, G.L.S., Chouksey, S.K., 2011. Stress-strain response of plastic waste mixed soil. Waste Management 31 (3), 481-488.

Chinchillas-Chinchillas, M.J., Gaxiola, A., Alvarado-Beltran, C.G., Orozco-Carmona, V.M., Pellegrini-Cervantes, M.J., Rodríguez-Rodríguez, M., Castro-Beltran, A., 2020. A new application of recycled-PET/PAN composite nanofibers to cement-based materials. Journal of Cleaner Production 252, 119827 (1-9).

Consoli, N.C., Vendruscolo, M.A., Fonini, A., Dalla Rosa, F., 2009. Fiber reinforcement effects on sand considering a wide cementation range. Geotextiles and Geomembranes 27 (3), 196-203.

Erguler, Z.A., Ulusay, R., 2003. A simple test and predictive models for assessing swell potential of Ankara (Turkey) Clay. Engineering Geology 67, 331-352.

Ghazavi, M., Roustaie, M., 2010. The influence of freeze-thaw cycles on the unconfined compressive strength of fiber-reinforced clay. Cold Regions Science and Technology 61,125-131.

Gonçalves, F.A.M.M., Fonseca, A.C., Domingos, M., Gloria, A., Serra, A.C., Coelho, J.F.J., 2017. The potential of unsaturated polyesters in biomedicine and tissue engineering: synthesis, structure-properties relationships and additive manufacturing. Progress Polymer Science 68, 1-34.

Gray, D.H., Maher, M.H., 1989. Admixture stabilization of sand with discrete randomly distributed fibers. Proceedings of XII International Conference on Soil Mechanics and Foundation Engineering, Rio de Janeiro, Brazil, vol. 2, pp. 1363-1366.

Guney, Y., Sari, D., Cetin, M., Tuncan, M., 2007. Impact of cyclic wetting-drying on swelling behavior of lime-stabilized soil. Building and Environment 42, 681-688.

Hajiannezhad, Z., Keramati, M., Naderi, R., Alinezhad, M., 2019. Evaluation of Shear Strength Behaviour of Anzali Port Sand Reinforced with Polyethylene terephthalate (PET). (Journal of Science and Technology).

Hassania, A., Ganjidoust, H., Maghanaki, A., 2005. Use of plastic waste in asphalt concrete mixture as aggregate replacement. Waste Management and Research 23, 322-327.

Harvey, C.C., Murray, H.H., 1997. Industrial clays in the 21st century: a perspective of exploration, technology and utilization. Applied Clay Science 11, 285-310.

Hausmann, M.R., 1990. Engineering Principles of Ground Modification. McGraw-Hill, New York.

Hoover, J.M., Moeller, D.T., Pitt, J.M., Smith, S.G., Wainaina, N.W., 1982. Performance of randomly oriented fiber reinforced roadway soils, A Laboratory and Field Investigation. Iowa DOT Project-HR-211. Department of Civil Engineering, Engineering Research Institute, Iowa State University, Ames.

Indiramma, P., Sudharani, C., Needhidasan, S., 2020. Utilization of fly ash and lime to stabilize the expansive soil and to sustain pollution free environment - An experimental study. Materials Today: Proceedings 22, 694-700.

İşmal, O., Oktem, T., Seventekin, N., 2000. Chemical fibers with improved absorbency. Textile and Technical Magazine, 191, 136-148.

Jafari, M., Esna-Ashari, M., 2012. Effect of waste tire cord reinforcement on unconfined compressive strength of lime stabilized clayey soil under freeze-thaw condition. Cold Regions Science and Technology 82, 21-29.

Kalkan, 2011. Impact of wetting-drying cycles on swelling behavior of clayey soils modified by silica fume. Applied Clay Science 52, 345-352.

Kalkan, E., 2013. Preparation of scrap tires rubber fiber-silica fume mixtures for modification of clayey soils. Applied Clay Science 80-81, 117-125.

Kalkan, E., Akbulut, S., 2004. The positive effects of silica fume on the permeability, swelling pressure and compressive strength of natural clay liners. Engineering Geology 73, 145-156.

Kalkan, E., Yarbaşı, N., Bilici, Ö., 2019. Strength performance of stabilized clayey soils with quartzite material. International Journal of Earth Sciences Knowledge and Applications 1 (1), 1-5.

Kalumba, D., Chebet, F.C., 2013. Utilization of polyethylene (plastic) shopping bags waste for soil improvement in sandy soils. Proc.18th ICSMGE.

Kaniraj, S.R., Havanagi, V.G., 2001. Behavior of cement-stabilized fiber-reinforced fly ash–soil mixtures. Journal of Geotechnical and Geoenvironmental Engineering, ASCE 127 (7), 574-584.

Kayabali, K., 1997. Engineering aspects of a novel landfill liner material: bentonite-amended natural zeolite. Engineering Geology 46, 105-114.

Keith, K.S., Murray, H.H., 1994. Clay liners and barriers, In: Carr, D.D. (Ed.), Industrial Minerals and Rocks, Sixth Edition. Society for Mining, Metallurgy and Exploration, Littleton, Colorado, pp. 435-452.

Liu, Y., Chang, C-W., Namdar, A., She, Y., Lin, C-H., Yuan, X., Yang, Q., 2019. Stabilization of expansive soil using cementing material from rice husk ash and calcium carbide residue. Construction and Building Materials 221, 1-11.

Maher, M.H., Gray, D.H., 1990. Static response of sands reinforced with randomly distributed fibers. Journals of Geotechnical Engineering Division, ASCE 116 (11), 1661-1667.

Mendivil-Escalante, J.M., Gomez-Soberon, J.M., Almaral-Sanchez, J.L., Cabrera-Covarrubias, F.G., 2017. Metamorphosis in the porosity of recycled concretes through the use of a recycled polyethylene terephthalate (PET) additive. Correlations between the porous network and concrete properties. Materials 10 (2), 176.

Miao, L.C., Liu, S.Y., 2001. Engineering characteristics of expansive soil and engineering measures. Advances in Science and Technology of Water Resource 48 (2), 37-40.

Muntohar, A.S., Widianti, A., Hartono, E., Diana, W., 2013. Engineering properties of silty soil stabilized with lime and rice husk ash and reinforced with waste plastic fiber. Journal Materials Civil Engineering 25, 1260-1270.

Murray, H.H., 2000. Traditional and new applications for kaolin, smectite, and palygorskite: a general overview. Applied Clay Science 17, 207-221.

Nataraj, M.S., Mc Manis, K.L., 1997. Strength and deformation properties of soils reinforcedwith fibrillated fibers. Geosynthetics International 4 (1), 65-79.

Nowamooz, H., Masrouri, F., 2008. Hydromechanical behavior of an expansive bentonite-silt mixture in cyclic suction-controlled drying and wetting tests. Engineering Geology 101, 154-164.

Parihar, N.S., Shukla, R.P, Gupta, A.K., 2015. Effect of reinforcement on soil. International Journal of Applied Engineering Research 10 (55), 4147-4151.

Park, T., Tan, S.A., 2005. Enhanced performance of reinforced soil walls by the inclusion of short fiber. Geotextiles and Geomembranes 23 (4), 348-361.

Patil, P., Mena, I., Goski, S., Urs, Y., 2016. Soil reinforcement techniques. International Journal of Engineering Research and Application 6 (8), 25-31.

Ragaert, K., Delva, L., Van Geem, K., 2017. Mechanical and chemical recycling of solid plastic waste. Waste Management 69, 24-58.

Ranjan, G., Vasan, R.M., Charan, H.D., 1996. Probabilistic analysis of randomly distributed fiber-reinforced soil. Journals of Geotechnical Engineering Division, ASCE 122 (6), 419-426.

Prabakar, J., Sridhar, R.S., 2002. Effect of random inclusion of sisal fibre on strength behavior of soil. Construction and Building Materials 16, 123-131.

Rao, S.M., Reddy, B.V.V., Muttharam, M., 2001. The impact of cyclic wetting and drying on the swelling behavior of stabilized expansive soils. Engineering Geology 60, 223-233.

Sabtan, A.A., 2005. Geotechnical properties of expensive clay shale in Tabuk, Saudi Arabia. Journal of Asian Earth Science 25, 747-757.

Saha, J., Das, S.C., Rahman, M., Siddiquee, M.A.B., Khan, M.A., 2016. Influence of polyester resin treatment on jute fabrics for geotextile applications. Journal of Textile Science and Technology, 2, 67-80.

Santoni, R.L., Tingle, J.S., Webster, S.L., 2001. Engineering properties of sand-fiber mixturefor road construction. Journal of Geotechnical and Geoenvironmental Engineering, ASCE 127 (3), 258-268.

Scremin, D.M., Miyazaki, D.Y., Lunelli, C.E., Silva, S.A., Zawadzki, S.F., 2019. PET recycling by alcoholysis using a new heterogeneous catalyst: study and its use in polyurethane adhesives preparation. Macromolocular Symposia 383 (1), 1-7.

Sevencan, F., Vaizoğlu, S.A., 2007. PET and recycling. TAF Preventive Medicine Bulletin 6 (4), 307-312, (In Turkish).
Shaikh, F.U.A., 2020. Tensile and flexural behaviour of recycled polyethylene terephthalate (PET) fibre reinforced geopolymer composites. Construction and Nuilding Materials 245, 118438.

Siddique, R., 2008. Recycled/Waste Plastic, Waste Materials and By-Products in Concrete, Springer, Berlin, Heidelberg.

Tang, C., Shi, B., Gao, W., Chen, F., Cai, Y., 2007. Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil. Geotextiles and Geomembranes 25, 197-202.

Tayyar, A.E, Üstün, S., 2010. Use of recycled PET. Pamukkale University Journal of Engineering Sciences 16 (1), 53-62.

Telli, A., Özdil, N., Babaarslan, O., 2012. Evaluation of PET bottle wastes in textile industry and contribution to sustainability. Textile and Engineer 19 (86), 49-55, (in Turkish).

Vidal, H., 1969. The principle of reinforced earth. Highway Research Record 282, 1-16.

Wang, F., Liu, L., Zhang, X., Weng, L., 2017. Hyperbranched unsaturated polyester resin for application in impregnation coatings. Iranian Polymer Journal 26, 81-89.

Yarbaşı, N., 2018. Strength properties of low plasticity clayey soils modified with marble dust and scrap tire. Artvin Çoruh University, Natural Hazards Application and Research Center, Journal of Natural Hazards and Environment 4 (2), 162-170.

Yarbaşı, N., Kalkan, E., 2019a. The stabilization of sandy soils by using the plastic bottle waste. International Journal of Advance Engineering and Research Development 6 (11), 140-144.

Yarbaşı, N., Kalkan, E., 2019b. Freeze-Thaw Behaviors of Sandy Soils Modified by Mixtures of PET Fiber and Marble Dust. International Journal of Latest Technology in Engineering, Management and Applied Science 8 (12), 38-42.

Yarbaşı, N., Kalkan, E., Akbulut, S., 2007. Modification of freezing-thawing properties of granular soils with waste additives. Cold Regions Science and Technology 48, 44-54.

Yetimoglu, T., Inanir, M., Inanir, O.E., 2005. A study on bearing capacity of randomly distributed fiber-reinforced sand fills overlying soft clay. Geotextiles and Geomembranes 23 (2), 174-183.

Yetimoglu, T., Salbas, O., 2003. A study on shear strength of sands reinforced with randomly distributed discrete fibers. Geotextiles and Geomembranes 21, 103-110.

Zaimoğlu, A.S., 2010. Freezing-thawing behavior of fine-grained soils reinforced with polypropylene fibers. Cold Regions Science and Technology 60, 63-65.

Zaimoğlu, A.S., Yetimoğlu, T, 2012. Strength Behavior of Fine Grained Soil Reinforced with Randomly Distributed Polypropylene Fibers. Geotechnical and Geological Engineering 30, 197-203.

Zeng, Z., Kong, L., Wang, M., Wang, J., 2020. Effects of remoulding and wetting-drying-freezing-thawing cycles on the pore structures of Yanji mudstones. Cold Regions Science and Technology 174, 103037.