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http://dx.doi.org/10.12989/gae.2018.16.6.627

Strength and mechanical behaviour of coir reinforced lime stabilized soil  

Sujatha, Evangelin Ramani (Centre for Advanced Research in Environment (CARE), School of Civil Engineering, SASTRA Deemed University)
Geetha, A.R. (School of Civil Engineering, SASTRA Deemed University)
Jananee, R. (School of Civil Engineering, SASTRA Deemed University)
Karunya, S.R. (School of Civil Engineering, SASTRA Deemed University)
Publication Information
Geomechanics and Engineering / v.16, no.6, 2018 , pp. 627-634 More about this Journal
Abstract
Soil stabilization is an essential engineering process to enhance the geotechnical properties of soils that are not suitable for construction purposes. This study focuses on using coconut coir, a natural fibre to enhance the soil properties. Lime, an activator is added to the reinforced soil to augment its shear strength and durability. An experimental investigation was conducted to demonstrate the effect of coconut coir fibers and lime on the consistency limits, compaction characteristics, unconfined compressive strength, stress-strain behaviour, subgrade strength and durability of the treated soil. The results of the study illustrate that lime stabilization and coir reinforcement improves the unconfined compressive strength, post peak failure strength, controls crack propagation and boosts the tensile strength of the soil. Coir reinforcement provides addition contact surface, improving the soil-fibre interaction and increasing the interlocking between fibre and soil and thereby improve strength. Optimum performance of soil is observed at 1.25% coir fibre inclusion. Coir being a natural product is prone to degradation and to increase the durability of the coir reinforced soil, lime is used. Lime stabilization favourably amends the geotechnical properties of the coir fibre reinforced soil.
Keywords
coconut coir; lime; stress-strain behaviour; post-peak strength; CBR; durability;
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1 Patel, S.K. and Singh, B. (2014), "Unconfined compressive strength behaviour of fibre-reinforced lateritic soil", J. Civ. Eng. Environ. Technol., 1(4), 93-98.
2 Peter, L., Jayasree, P.K., Balan, K. and Raj, S.A. (2016), "Laboratory investigation in the improvement of subgrade characteristics of expansive soil stabilised with coir waste", Transport. Res. Procedia, 17, 558-566.   DOI
3 Pillai, R.R. and Ayothiraman R. (2012), "An innovative technique of improving the soil using human hair fibers", Proceedings of the 3rd International Conference on Construction in Developing Countries (ICCIDC-III), Bangkok, Thailand, July.
4 Ramakrishna, G. and Sundararajan, T. (2005), "Impact strength of a few natural fibre reinforced cement mortar slabs: A comparative study", Cement Concrete Compos., 27(5), 547-553.   DOI
5 Ramesh, H.N., Krishnan, K.V.M. and Mamatha, H.V. (2010), "Compaction and strength behaviour of lime-coir fiber treated Black Cotton soil", Geomech. Eng., 2(1), 19-28.   DOI
6 Saberian, M., Moradi, M., Vali, R. and Li, J. (2018), "Stabilized marine and desert sands with deep mixing of cement and sodium bentonite", Geomech. Eng., 14(6), 553-562.   DOI
7 Sharma, A.K. and Sivapullaiah, P.V. (2016), "Ground granulated blast furnace slag amended fly ash as an expansive soil stabilizer", Soil Found., 56(2), 205-212.   DOI
8 Sharma, V., Vinayak, H.K. and Marwaha, B.M. (2015), "Enhancing compressive strength of soil using natural fibres", Constr. Build. Mater., 93, 943-949.   DOI
9 Sivakumar Babu, A.K. and Vasudevan, A.K. (2008), "Strength and stiffness response of coir fiber reinforced tropical soil", J. Mater. Civ. Eng., 20(9), 571-577.   DOI
10 Sujatha, E.R., Saisree, S., Prabalini, C. and Ayesha Farazana, Z. (2017), "Influence of random inclusion of coconut fibres on the short term strength of highly compressible clay", IOP Conf. Series Earth Environ. Sci., 80(1), 012056.   DOI
11 Tang, C., Shi, B., Gao, W., Chen, F. and Cai, Y. (2007), "Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil", Geotext. Geomembranes, 25(3), 194-202.   DOI
12 Yadav, J.K. and Tiwari, S.K. (2016), "Behaviour of cement stabilized treated coir fibre reinforced clay-pond ash mixtures", J. Build. Eng., 8, 131-140.   DOI
13 Wang, Y.X., Guo, P.P., Ren, W.X., Yuan, B.X., Yuan, H.P., Zhao, Y.L., Shan, S.B. and Cao, P. (2017), "Laboratory investigation on strength characteristics of expansive soil treated with jute fiber reinforcement", Int. J. Geomech., 17(11), 04017101.   DOI
14 Wang, Y., Guo, P., Shan, S., Yuan, H. and Yuan, B. (2016), "Study on strength influence mechanism of fiber-reinforced expansive soil using jute", Geotech. Geol. Eng., 34(4), 1079-1088.   DOI
15 Wei, L., Chai, S.X., Zhang, H.Y. and Shi, Q. (2018), "Mechanical properties of soil reinforced with both lime and four kinds of fibre", Constr. Build. Mater., 172, 300-308.   DOI
16 ASTM D4318-05 (2005), Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils.
17 Al Adili, A., Azzam, R., Spagnoli, G. and Schrader, J. (2012), "Strength of soil reinforced with fiber materials (papyrus)", Soil Mech. Found. Eng., 48(6), 241-47.   DOI
18 Anggraini, V., Asadi, A., Farzadnia, N., Jahangirian, H. and Huat, B.B.K. (2016), "Effects of coir fibres modified with $Ca(OH)_2$ and $Mg(OH)_2$ nanoparticles on mechanical properties of limetreated marine clay", Geosynth. Int., 23(3), 206-218.   DOI
19 Anggraini, V., Asadi, A., Huat, B.B. and Nahazanan, H. (2015), "Effects of coir fibers on tensile and compressive strength of lime treated soft soil", Measurements, 59, 372-381.
20 ASTM D2166-06 (2006), Standard Test Method for Unconfined Compressive Strength of Cohesive Soil.
21 ASTM D698-12 (2012), Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort.
22 Dutta, R.K. and Mohanty, B. (2015), "Effect of coir fibers on the compaction and unconfined compressive strength of bentonitelime-gypsum mixture", Slovak J. Civ. Eng., 23(2), 1-8.   DOI
23 Canakcia, H., Azizb, A. and Celik, F. (2015), "Soil stabilization of clay with lignin, rice husk powder and ash", Geomech. Eng., 8(1), 67-79.   DOI
24 Choo, H., Yoon, B., Lee, W. and Lee, C. (2017), "Evaluation of compressibility and small strain stiffness characteristics of sand reinforced with discrete synthetic fibers", Geotext. Geomembranes, 45(4), 331-338.   DOI
25 Cui, H., Jin, Z., Bao, X., Tang, W. and Dong, B. (2018), "Effect of carbon fibre and nanosilica on shear properties of silty soil and the mechanisms", Constr. Build. Mater., 189, 286-295.   DOI
26 Eskisar, T. (2015), "Influence of cement treatment on unconfined compressive strength and compressibility of lean clay with medium plasticity", Arab. J. Sci. Eng., 40(3), 763-772.   DOI
27 Hejazi, S.M., Sheikhzadeh, M., Abtahi, S.M. and Zadhoush, A. (2012), "A simple review of soil reinforcement by using natural and synthetic fibers", Constr. Build. Mater., 30, 100-116.   DOI
28 Barker, J.E., Rogers, C.D.F. and Boardman, D.I. (2006), "Physiochemical changes in clay caused by ion migration from lime piles", J. Mater. Civ. Eng., 18(2), 182-189.   DOI
29 IS: 2720. (2006), Compendium of Soil Testing, Bureau of Indian Standards, New Delhi, India.
30 Shooshpasha, I. and Shirvani, R.A. (2015), "Effect of cement stabilization on geotechnical properties of sandy soils", Geomech. Eng., 8(1), 17-31.   DOI
31 Kalantari, B., Prasad, A. and Huat, B.B.K. (2010), "Peat stabilization using cement, polypropylene and steel fibres", Geomech. Eng., 2(4), 321-335.   DOI
32 Lekha, K.R. and Sreedevi, B.G. (2005), Coir Fiber for the Stabilization of Weak Subgrade Soils, Highway Engineering Lab, NATPAC, Kerala, India.
33 Khatri, V.N., Dutta, R.K., Venkataraman, G. and Shrivastava, R. (2015). "Shear strength behaviour of clay reinforced with treated coir fibers", Periodica Polytech. Civ. Eng., 60(2), 135-143.
34 Kumar, A., Walia, B.S. and Mohan, J. (2006), "Compressive strength of fibre reinforced highly compressible clay", Constr. Build. Mater., 20(10), 1063-1068.   DOI
35 Lekha, B.M., Sarang, G. and Ravi Sankar, A.U. (2015), "Evaluation of laterite soil stabilized with Arecanut coir for low volume pavements", Transport. Geotech., 2, 20-29.   DOI
36 Marques, A.R., de Oliveira Patricio, P.S., dos Santos, F.S., Monteiro, M.L., de Carvalho Urashima, D. and de Souza Rodrigues, C. (2014), "Effects of the climatic conditions of the southeastern Brazil on degradation the fibers of coir-geotextile: Evaluation of mechanical and structural properties", Geotext. Geomembranes, 42(1), 76-82.   DOI
37 Mirzababaei, M., Miraftab, M., Mohamed, M. and MacMohan, P. (2013), "Unconfined compression strength of reinforced clays with carpet waste fibres", J. Geotech. Geoenviron. Eng., 139(2), 483-493.   DOI
38 Rodrigues, C. (2014), "Effects of the climatic conditions of the southeastern Brazil on degradation the fibers of coir-geotextile: Evaluation of mechanical and structural properties", Geotext. Geomembranes, 42(1), 76-82.   DOI
39 Mirzababaei, M., Arulrajah, A., Haque, A., Nimbalkar, S. and Mohajerani, A. (2018), "Effect of fiber reinforcement on shear strength and void ratio of soft clay", Geosynth. Int., 25(4), 471-480.   DOI
40 Mirzababaei, M., Arulrajah, A., Horpibulsuk, S., Soltani, A. and Khayat, N. (2018), "Stabilization of soft clay using short fibers and poly vinyl alcohol", Geotext. Geomembranes, 46(5), 646-655.   DOI