Experimental Study on Moisture Susceptibility of Subgrade Soil with Superabsorbent Polymers
Publication: Journal of Materials in Civil Engineering
Volume 31, Issue 7
Abstract
In this study, superabsorbent polymers (SAP) were introduced as an admixture in subgrade soils for the potential of improving their moisture susceptibility under moisture variation conditions. A series of experiments was performed on the soil samples to investigate the feasibility and influences of SAP on their fundamental physical properties and mechanical performance. In addition, wetting-drying (W-D) cyclic tests were conducted on the samples to simulate the moisture varying conditions that subgrade soils could experience in service. Compaction tests showed that SAP decreased the maximum dry density, but had no effect on the optimum moisture content. Soil amended by SAP exhibited superior uniformities in moisture distribution and grain size distribution. SAP helped enhance the direct shear behaviors of subgrade soils and increased the cohesive strengths and internal friction angles. The W-D cycles obviously degraded the mechanical properties. During the W-D cycles, SAP could also remarkably improve shear strength and the larger the SAP content, the better the shear performance. Results proved that a proper content of SAP () added in the subgrade soils had no apparent impact on the volume stability, however a high content of SAP could significantly increase the volume by as much as 12.35%. Based on the test results, an optimal SAP content of no more than 0.75% is recommended.
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Acknowledgments
The project was financially sponsored by the support of the National Natural Science Foundation of China (Grant No. 51778638). The contents of this study reflect the views of the authors, who are responsible for the facts and the accuracy of the data presented herein, and do not necessarily reflect any official views or policies.
References
Abu-Farsakh, M., J. Coronel, and M. Tao. 2007. “Effect of soil moisture content and dry density on cohesive soil–geosynthetic interactions using large direct shear tests.” J. Mater. Civ. Eng. 19 (7): 540–549. https://doi.org/10.1061/(ASCE)0899-1561(2007)19:7(540).
Alonso, E. E., E. Romero, C. Hoffmann, and E. García-Escudero. 2005. “Expansive bentonite–sand mixtures in cyclic controlled-suction drying and wetting.” Eng. Geol. 81 (3): 213–226. https://doi.org/10.1016/j.enggeo.2005.06.009.
ASTM. 2015. Standard test methods for wetting and drying compacted soil-cement mixtures. ASTM D559/D559M. West Conshohocken, PA: ASTM.
Bentz, D. P., and W. J. Weiss. 2011. Internal curing: A 2010 state-of-the-art review. Rep. No. NISTIR 7765. Gaithersburg, MD: NIST.
Correia, A. A. S., P. J. V. Oliveira, and D. G. Custódio. 2015. “Effect of polypropylene fibres on the compressive and tensile strength of a soft soil, artificially stabilised with binders.” Geotext. Geomembr. 43 (2): 97–106. https://doi.org/10.1016/j.geotexmem.2014.11.008.
Dan, H.-C., Z. Zhang, X. Liu, and J.-Q. Chen. 2017. “Transient unsaturated flow in the drainage layer of a highway: Solution and drainage performance.” Road Mater. Pavement Des. 20 (3): 1–26. https://doi.org/10.1080/14680629.2017.1397049.
Dash, S. K., and M. Hussain. 2015. “Influence of lime on shrinkage behavior of soils.” J. Mater. Civ. Eng. 27 (12): 04015041. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001301.
Dong, Q., V. Huang, and B. Huang. 2014. “Laboratory evaluation of utilizing waste heavy clay and foundry sand blends as construction materials.” J. Mater. Civ. Eng. 26 (9): 04014065. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000968.
Estabragh, A. R., B. Parsaei, and A. A. Javadi. 2015. “Laboratory investigation of the effect of cyclic wetting and drying on the behaviour of an expansive soil.” Soils Found. 55 (2): 304–314. https://doi.org/10.1016/j.sandf.2015.02.007.
Han, Z., S. K. Vanapalli, J.-P. Ren, and W.-L. Zou. 2018. “Characterizing cyclic and static moduli and strength of compacted pavement subgrade soils considering moisture variation.” Soils Found. 58 (5): 1187–1199. https://doi.org/10.1016/j.sandf.2018.06.003.
He, Y., Y.-J. Cui, W.-M. Ye, and N. Conil. 2017. “Effects of wetting-drying cycles on the air permeability of compacted Téguline clay.” Eng. Geol. 228: 173–179. https://doi.org/10.1016/j.enggeo.2017.08.015.
He, Z., H. Mo, A. Siga, and J. Zou. 2019. “Research on the parameters of nonlinear hyperbolic model for clay-geogrid interfaces based on large scale direct shear tests.” Transp. Geotech. 18: 39–45. https://doi.org/10.1016/j.trgeo.2018.11.002.
Horpibulsuk, S., C. Phetchuay, and A. Chinkulkijniwat. 2012. “Soil stabilization by calcium carbide residue and fly ash.” J. Mater. Civ. Eng. 24 (2): 184–193. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000370.
Jin, L., W. Song, X. Shu, and B. Huang. 2018. “Use of water reducer to enhance the mechanical and durability properties of cement-treated soil.” Constr. Build. Mater. 159: 690–694. https://doi.org/10.1016/j.conbuildmat.2017.10.120.
Laustsen, S., M. T. Hasholt, and O. M. Jensen. 2015. “Void structure of concrete with superabsorbent polymers and its relation to frost resistance of concrete.” Mater. Struct. 48 (1–2): 357–368. https://doi.org/10.1617/s11527-013-0188-0.
Liu, W., S. Qu, Z. Nie, and J. Zhang. 2016. “Effects of density and moisture variation on dynamic deformation properties of compacted lateritic soil.” Adv. Mater. Sci. Eng. 2016: 1–11. https://doi.org/10.1155/2016/5951832.
MOTPRC (Ministry of Transport of the People’s Republic of China). 2007. Test methods of soils for highway engineering. JTG E40. Beijing: Ministry of Transport of the People’s Republic of China.
Omidian, H., S. A. Hashemi, P. G. Sammes, and I. Meldrum. 1998. “A model for the swelling of superabsorbent polymers.” Polymer, 39 (26): 6697–6704. https://doi.org/10.1016/S0032-3861(98)00095-0.
RILEM (International Union of Laboratories and Experts in Construction Materials, Systems and Structures). 2012. Application of super absorbent polymers (SAP) in concrete constructions. Edited by V. Mechtcherine and H. W. Reinhardt. Dordrecht, Netherlands: Springer.
Schröfl, C., V. Mechtcherine, and M. Gorges. 2012. “Relation between the molecular structure and the efficiency of superabsorbent polymers (SAP) as concrete admixture to mitigate autogenous shrinkage.” Cem. Conc. Res. 42 (6): 865–873. https://doi.org/10.1016/j.cemconres.2012.03.011.
Schröfl, C., D. Snoeck, and V. Mechtcherine. 2017. “A review of characterisation methods for superabsorbent polymer (SAP) samples to be used in cement-based construction materials: Report of the RILEM TC 260-RSC.” Mater. Struct. 50 (4): 197. https://doi.org/10.1617/s11527-017-1060-4.
Silvestri, V., M. Soulié, J. Lafleur, G. Sarkis, and N. Bekkouche. 1991. “Foundation problems in Champlain clays during droughts. Part I: Rainfall deficits in Montréal (1930–1988): Reply.” Can. Geotech. J. 28 (2): 320–321. https://doi.org/10.1139/t91-041.
Snoeck, D., S. Steuperaert, K. V. Tittelboom, P. Dubruel, and N. D. Belie. 2012. “Visualization of water penetration in cementitious materials with superabsorbent polymers by means of neutron radiography.” Cem. Concr. Res. 42 (8): 1113–1121. https://doi.org/10.1016/j.cemconres.2012.05.005.
Soltani, A., A. Deng, and A. Taheri. 2018. “Swell–compression characteristics of a fiber–reinforced expansive soil.” Geotext. Geomembr. 46 (2): 183–189. https://doi.org/10.1016/j.geotexmem.2017.11.009.
Stoltz, G., O. Cuisinier, and F. Masrouri. 2014. “Weathering of a lime-treated clayey soil by drying and wetting cycles.” Eng. Geol. 181: 281–289. https://doi.org/10.1016/j.enggeo.2014.08.013.
Tang, C. S., Y. J. Cui, B. Shi, A. M. Tang, and C. J. G. Liu. 2011. “Desiccation and cracking behaviour of clay layer from slurry state under wetting–drying cycles.” Geoderma, 166 (1): 111–118. https://doi.org/10.1016/j.geoderma.2011.07.018.
Tang, C. S., D. Y. Wang, B. Shi, and J. Li. 2016. “Effect of wetting–drying cycles on profile mechanical behavior of soils with different initial conditions.” CATENA 139: 105–116. https://doi.org/10.1016/j.catena.2015.12.015.
Teng, J., F. Shan, Z. He, S. Zhang, G. Zhao, and D. Sheng. 2018. “Experimental study of ice accumulation in unsaturated clean sand.” Géotechnique 69 (3): 251–259. https://doi.org/10.1680/jgeot.17.P.208.
Teng, J., N. Yasufuku, S. Zhang, and Y. He. 2016. “Modelling water content redistribution during evaporation from sandy soil in the presence of water table.” Comput. Geotech. 75: 210–224. https://doi.org/10.1016/j.compgeo.2016.02.009.
Teuling, A. J., F. Hupet, R. Uijlenhoet, and P. A. Troch. 2007. “Climate variability effects on spatial soil moisture dynamics.” Geophys. Res. Lett. 34 (6): L06406. https://doi.org/10.1029/2006GL029080.
Uday, K. V., and D. N. Singh. 2013. “Investigation on cracking characteristics of fine-grained soils under varied environmental conditions.” Drying Technol. 31 (11): 1255–1266. https://doi.org/10.1080/07373937.2013.785433.
Wang, D. Y., C. S. Tang, Y. J. Cui, B. Shi, and J. Li. 2016. “Effects of wetting–drying cycles on soil strength profile of a silty clay in micro-penetrometer tests.” Eng. Geol. 206: 60–70. https://doi.org/10.1016/j.enggeo.2016.04.005.
Wang, Z., J. Wu, P. Zhao, N. Dai, Z. Zhai, and T. Ai. 2018. “Improving cracking resistance of cement mortar by thermo-sensitive poly N-isopropyl acrylamide (PNIPAM) gels.” J. Cleaner Prod. 176: 1292–1303. https://doi.org/10.1016/j.jclepro.2017.11.242.
Warrick, A. W. 2003. Soil water dynamics. New York: Oxford University Press.
Wei, L., S. X. Chai, H. Y. Zhang, and Q. Shi. 2018. “Mechanical properties of soil reinforced with both lime and four kinds of fiber.” Constr. Build. Mater. 172: 300–308. https://doi.org/10.1016/j.conbuildmat.2018.03.248.
Wu, H., B. Huang, X. Shu, and S. Zhao. 2015. “Evaluation of geogrid reinforcement effects on unbound granular pavement base courses using loaded wheel tester.” Geotext. Geomembr. 43 (5): 462–469. https://doi.org/10.1016/j.geotexmem.2015.04.014.
Yazdandoust, F., and S. S. Yasrobi. 2010. “Effect of cyclic wetting and drying on swelling behavior of polymer-stabilized expansive clays.” Appl. Clay Sci. 50 (4): 461–468. https://doi.org/10.1016/j.clay.2010.09.006.
Zhou, C., B. Huang, W. Drumm, X. Shu, Q. Dong, and S. Udeh. 2015. “Soil resilient modulus regressed from physical properties and influence of seasonal variation on asphalt pavement performance.” J. Transp. Eng. 141 (1): 04014069. https://doi.org/10.1061/(ASCE)TE.1943-5436.0000727.
Zou, J. F., Y. M. Sheng, and Z. Q. Xia. 2017. “Dynamic stress properties of dynamic compaction (DC) in a red-sandstone soil–rock mixture embankment.” Environ. Earth Sci. 76 (12): 411. https://doi.org/10.1007/s12665-017-6743-1.
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©2019 American Society of Civil Engineers.
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Received: Nov 29, 2018
Accepted: Jan 29, 2019
Published online: May 6, 2019
Published in print: Jul 1, 2019
Discussion open until: Oct 6, 2019
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