بررسی آزمایشگاهی خواص مکانیکی خاک سیمان تهیه شده از خاک رسی آلوده به مواد هیدروکربنی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد سازه ‏های آبی گروه مهندسی آبیاری و آبادانی دانشگاه تهران

2 دانشیار گروه مهندسی آبیاری و آبادانی دانشگاه تهران

3 دانشیار سازمان تحقیقات فنی و مهندسی کشاورزی کرج

4 مربی گروه مهندسی آبیاری و آبادانی دانشگاه تهران

چکیده

خاک سیمان یکی از مصالح ساختمانی است که در جاده‏سازی، پوشش کانال‏های آبیاری و غیره کاربرد زیادی دارد. در این تحقیق، خواص مکانیکی خاک رسی آلوده به مادة آلی (3، 6 و 9 درصد گلیسرول) و خاک سیمان تهیه‌شده از خاک رسی و خاک رسی حاوی مادة آلی (گلیسرول) با 3 و 6 درصد سیمان بررسی شد. نمونه‏های آزمایشگاهی به روش تراکم استاتیکی تهیه شدند و مقاومت خاک طبیعی و خاک آلوده به مادة هیدروکربنی تعیین شد. همچنین مقاومت نمونه‏های خاک سیمان تهیه‌شده از خاک طبیعی یا خاک آلوده به گلیسرول در زمان‏های عمل‏آوری مختلف تعیین شد. نتایج نشان داد مقاومت خاک رسی آلوده به گلیسرول نسبت به خاک رسی معمولی کاهش می‏یابد و این کاهش با افزایش درصد آلاینده همراه است. از طرف دیگر، خاک سیمان تهیه‌شده از خاک رسی حاوی درصد کم (3 درصد) مادة آلاینده نسبت به خاک سیمان تهیه‌شده از خاک رسی طبیعی مقاومت بیشتری دارد؛ در صورتی که در درصدهای بیشتر آلاینده (6 و 9 درصد) نسبت به خاک سیمان متناظر تهیه‌شده از خاک رسی طبیعی مقاومت کمتر است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Experimental Assessment of Soil-cement Mechanical Behavior Incorporated with Organic Pollution

نویسندگان [English]

  • Mehdi Khatibi 1
  • Ali Raeesi Estabragh 2
  • Nader Abbasi 3
  • Jamal Abdolahi Alibeyk 4
1 MSc student of Irrigation and Drainage, Department of Irrigation and Reclamation Eng., College of Agriculture and Natural Resources, University of Tehran
2 Associate professor, Department of Irrigation and Reclamation Eng., College of Agriculture and Natural Resources, University of Tehran
3 Associate professor, Agricultural Engineering research Institute, P.O. Box 31585-845, Karaj, Iran
4 Lecturer, Department of Irrigation and Reclamation Eng., College of Agriculture and Natural Resources, University of Tehran
چکیده [English]

Soil-cement has been widely used, as a basic material, in the foundation of many such
projects, as pavement of highways as well as lining of channels and reservoirs. This paper
presents the effect of an organic additive component (Glycerol) on the mechanical
behavior and on the properties of soil and soil-cement mixtures. Soil samples were
prepared by static compaction at maximum dry density and optimum moisture content for
various percentages of cement and Glycerol as well for various curing durations. Results
indicated that contaminated soil with Glycerol (3%, 6% and 9%) show lower compressive
strength as compared with natural soil. Furthermore the decrease in compressive strength
is seen to be a function of Glycerol percentage. In addition, the use of cement (3% and
6%) on natural soil will cause an increase in the compressive strength. Furthermore an
increase in the compressive strength of different soil-cement samples was observed to be
a function of cement percentages and curing durations. In all, soil-cement mixtures in
addition with 3% of Glycerol show greater compressive strengths as compared with
uncontaminated soil-cement mixtures. However the use of higher percentages of Glycerol
(6% and 9%) resulted in a noticeable decrease in strength as compared with
uncontaminated soil-cement mixtures.

کلیدواژه‌ها [English]

  • Soil-cement
  • Glycerol
  • strength
  • curing duration

مراجع

Al-Rawas, A. A., Hago, A. W., and Al-Sarmi, H. (2005). Effect of lime, cement and Sarooj (artificial pozzolan) on the swelling potential of an expansive soil from Oman. Building and Environment, 40(5), 681-687.
Al-Sanad, H. A., Eid, W. K., and Ismael, N. F. (1995). Geotechnical properties of oil-contaminated Kuwaiti sand. Journal of geotechnical engineering, 121(5), 407-412.
Basha, E. A., Hashim, R., Mahmud, H. B., and Muntohar, A. S. (2005). Stabilization of residual soil with rice husk ash and cement. Construction and Building Materials, 19(6), 448-453.
Botta, D., Dotelli, G., Biancardi, R., Pelosato, R., and Natali Sora, I. (2004). Cement–clay pastes for stabilization/solidification of 2-chloroaniline. Waste Management, 24(2), 207-216.
Chen, J., Anandarajah, A., and Inyang, H. (2000). Pore fluid properties and compressibility of kaolinite. Journal of geotechnical and geoenvironmental engineering, 126(9), 798-807.
Cook, E. E., Puri, V. K., and Shin, E. C. (1992). Geotechnical characteristics of crude oil-contaminated sands. In: Proceedings of 2th International Offshore and Polar Engineering Conference, 14-19 June., International Society of Offshore and Polar Engineers, San Francisco, California, USA.
DeBlasis, N. J. (2008). The influence of curing temperature on cement stabilization of North Carolina soils. Ph. D. dissertation, University of North Carolina, Charlotte.
Di Matteo, L., Bigotti, F., and Ricco, R. (2010). Compressibility of kaolinitic clay contaminated by ethanol-gasoline blends. Journal of Geotechnical and Geoenvironmental Engineering, 137(9), 846-849.
Estabragh, A. R., Beytolahpour, I., and Javadi, A. A. (2010). Effect of resin on the strength of soil-cement mixture. Journal of Materials in Civil Engineering, 23(7), 969-976.
Estabragh, A. R., Namdar, P., and Javadi, A. A. (2012). Behavior of cement-stabilized clay reinforced with nylon fiber. Geosynthetics International, 19(1), 85-92.
Fang, H. Y. and Daniels, J. (1997). Introduction to environmental geotechnology. CRC Press.
Graham, J., Yuen, K., Goh, T. B., Janzen, P., and Sivakumar, V. (2001). Hydraulic conductivity and pore fluid chemistry in artificially weathered plastic clay. Engineering geology, 60(1), 69-81.
Jaynes, W. F. and Vance, G. F. (1999). Sorption of benzene, toluene, ethylbenzene, and xylene (BTEX) compounds by hectorite clays exchanged with aromatic organic cations. Clays and Clay Minerals, 47(3), 358-365.
Kaya, A. and Fang, H. Y. (2000). The effects of organic fluids on physicochemical parameters of fine-grained soils. Canadian Geotechnical Journal, 37(5), 943-950.
Meegoda, N. J. and Rajapakse, R. A. (1993). Short-term and long-term permeabilities of contaminated clays. Journal of Environmental Engineering, 119(4),. 725-743.
Meegoda, N. J. and Ratraweera, P. (1994). Compressibility of contaminated fine-grained soils. ASTM geotechnical testing journal, 17(1), 101-112.
Mitchell, J. K. (1960). The application of colloidal theory to the compressibility of clays. Commonwealth Science and Industry Research Organization, 2, 92-97.
Moore, C. A. and Mitchell, J. K. (1974). Electromagnetic forces and soil strength. Geotechnique, 24(4), 627-640.
Olsen, R. E. and Mesri, G. (1970). Mechanisms controlling compressibility of clay. J. Soil Mechanics and Foundations Division, Proceedings of the American Society of Civil Engineers, 96, 1863-1978.
Puri, V. K., Das, B. M., Cook, E. E., and Shin, E. C. (1994). Geotechnical properties of crude oil contaminated sand. ASTM Special Technical Publication, 1221, 75-75.
Ratnaweera, P. and Meegoda, J. N. (2006). Shear strength and stress-strain behavior of contaminated soils. ASTM geotechnical testing journal, 29(2), 133-140.
Sheng, G., Xu, S., and Boyd, S. A. (1996). Mechanism (s) controlling sorption of neutral organic contaminants by surfactant-derived and natural organic matter. Environmental science & technology, 30(5), 1553-1557.
Singh, S. K., Srivastava, R. K., and John, S. (2008). Settlement characteristics of clayey soils contaminated with petroleum hydrocarbons. Soil & sediment contamination, 17(3), 290-300.
Sridharan, A. and Venkatappa Rao, G. (1973). Mechanisms controlling volume change of saturated clays and the role of the effective stress concept. Geotechnique, 23(3), 359-382.
تحقیقات آب و خاک ایران
دوره 46، شماره 1 - شماره پیاپی 1
فروردین 1394
صفحه 141-149

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