In Situ Stabilization of Problematic Mixtures in a Failed Roadway Subbase
Publication: Journal of Performance of Constructed Facilities
Volume 31, Issue 3
Abstract
An engineering failure with serious cracks and heaving in the roadway subbase because of the overuse of phosphogypsum was investigated, and an effective stabilization solution was implemented. For this purpose, mix-proportion design, compaction, expansion, and shrinkage tests were performed on the treated mixture to investigate the engineering properties. Based on the laboratory results, in situ tests were conducted to verify the engineering behaviors of the recycled subbase, which included the static plate load test (SPLT), dynamic cone penetrometer test (DCP), Benkleman beam method test (BBM), and portable falling-weight deflectometer test (PFWD). The test results show that the swelling problem can be controlled by adding lime and fly ash to the problematic mixture at a reasonable proportion. The in situ tests show that the average resilience modulus of the SPLT was 191.5 MPa, which is approximately four times the value before the treatment. The dynamic modulus of the DCP test and PFWD test also indicate an increase of approximately , and the deflection value of the BBM test was only 37.2 mm after the treatment. The in situ test results show that the recycled subbase can satisfy the roadway requirements and present a good performance. The proposed mix proportion of was applied in this problematic subbase. The construction control requirements are outlined in this paper. The treated roadway subbase has worked well for nearly 9 years, which indicates a successful application of in situ stabilization.
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Acknowledgments
This study is partially supported by the National Natural Science Foundation of China (Grant No. 51378118 and Grant No. 41272312), and the Project funded by China Postdoctoral Science Foundation (Grant No. 2013M530360). The authors are grateful to Mr. Yuming Teng, Mr. Weiqiang Wang, Miss Yan Zhao, and Mr. Qianghua Zeng for their hard work and efforts in the field and laboratory tests, which are essential to the successful completion of this manuscript.
References
Al-Mukhtar, M., Lasledj, A., and Alcover, J. F. (2010). “Behaviour and mineralogy changes in lime-treated expansive soil at 20°C.” Appl. Clay Sci., 50(2), 191–198.
Alshibli, K. A., Abu-Farsakh, M., and Seyman, E. (2005). “Laboratory evaluation of the geogauge and light falling weight deflectometer as construction control tools.” J. Mater. Civ. Eng., 560–569.
ASTM. (2000). “Standard test methods for laboratory compaction characteristics of soil using modified effort.” ASTM D1557-00, West Conshohocken, PA.
Chen, D. H. (2008). “Forensic investigation of mechanically stabilized earth (MSE) approaches.” J. Test. Eval., 36(5), 443–452.
Chen, D. H., Harris, P., Scullion, T., and Bilyeu, J. (2005). “Forensic investigation of a sulfate heaved project in Texas.” J. Perform. Constr. Facil., 324–330.
Cokca, E. (2001). “Use of class C fly ashes for the stabilization of an expansive soil.” J. Geotech. Geoenviron. Eng., 568–573.
Degirmenci, N., Okucu, A., and Turabi, A. (2007). “Application of phosphogypsum in soil stabilization.” Build. Environ., 42(9), 3393–3398.
Ding, J. W., Shi, M. L., and Liu, W. Z. (2009). “Reusing test study and application of phosphogypsum-lime solidified soil in road base course.” J. Southeast Univ. (Natural Science Edition), 39(1), 121–126 (in Chinese).
Dong, M. S., Ling, T. Q., and Xu, J. L. (2002). “Mechanism on the phosphogypsum-improved semi-rigid basecourse.” China J. Highway Transp., 15(1), 12–15 (in Chinese).
Ebrahimi, A., Edil, T. B., and Son, Y. H. (2012). “Effectiveness of cement kiln dust in stabilizing recycled base materials.” J. Mater. Civ. Eng., 1059–1066.
Griffin, J. R., and Jersey, S. R. (2011). “Evaluation of in situ characterization techniques for pavement applications of portland cement-stabilized soil.” Geotech. Test. J., 34(4), 344–354.
Ministry of Construction. (1999). “Standard for soil test method.” GB/T 50123-1999, Beijing (in Chinese).
Misra, A., Upadhyaya, S., Horn, C., Kondagari, S., and Gustin, F. (2006). “CBR and DCP correlation for class C fly ash-stabilized soil.” Geotech. Test. J., 29(1), 30–36.
Mitchell, J. K. (1986). “Practical problems from surprising soil behavior.” J. Geotech. Eng., 255–289.
Nalbantoglu, Z. (2004). “Effectiveness of class C fly ash as an expansive soil stabilizer.” Constr. Build. Mater., 18(6), 377–381.
Nalbantoglu, Z., and Tuncer, E. R. (2001). “Compressibility and hydraulic conductivity of a chemically treated expansive clay.” Can. Geotech. J., 38(1), 154–160.
Parreira, A. B., Kobayashi, A. R. K., and Silvestre, O. B., Jr. (2003). “Influence of portland cement type on unconfined compressive strength and linear expansion of cement-stabilized phosphogypsum.” J. Environ. Eng., 956–960.
Puppala, A. J., Saride, S., and Williammee, R. (2012). “Sustainable reuse of limestone quarry fines and RAP in pavement base/subbase layers.” J. Mater. Civ. Eng., 418–429.
Rahman, F., Hossain, M., Hunt, M. M., and Romanoschi, S. A. (2008). “Soil stiffness evaluation for compaction control of cohesionless embankments.” Geotech. Test. J., 31(5), 442–451.
Shen, W., Zhou, M., and Zhao, Q. (2007). “Study on lime-fly ash-phosphogypsum binder.” Constr. Build. Mater., 21(7), 1480–1485.
Taha, R., Al-Harthy, A., Al-Shamsi, K., and Al-Zubeidi, M. (2002). “Cement stabilization of reclaimed asphalt pavement aggregate for road bases and subbases.” J. Mater. Civ. Eng., 239–245.
Thyagaraj, T., Rao, S. M., Sai Suresh, P., and Salini, U. (2012). “Laboratory studies on stabilization of an expansive soil by lime precipitation technique.” J. Mater. Civ. Eng., 1067–1075.
Zhang, J. R., and Cao, X. C. (2002). “Stabilization of expansive soil by lime and fly ash.” J. Wuhan Univ. Technol. Sci. Ed., 17(4), 73–77.
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©2017 American Society of Civil Engineers.
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Received: Apr 8, 2016
Accepted: Aug 30, 2016
Published online: Jan 23, 2017
Published in print: Jun 1, 2017
Discussion open until: Jun 23, 2017
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