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استفاده از خاکستر باگاس نیشکر و آهک برای تثبیت خاک های رسی | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 1، دوره 49، شماره 1، فروردین و اردیبهشت 1397، صفحه 1-12 اصل مقاله (1.06 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2017.220607.667730 | ||
| نویسندگان | ||
| عبدالمجید کریمی1؛ نادر عباسی* 2؛ مهدی سیاوش نیا3 | ||
| 11- دانش آموخته کارشناشی ارشد رشته مهندسی عمران خاک وپی، دانشگاه ازاد اسلامی واحد تهران مرکزی | ||
| 2عضو هیئت علمی موسسه تحقیقات فنی و مهندسی کشاورزی، سازمان تحقیقات، آموزش و ترویج کشاورزی | ||
| 3دانشکده مهندسی عمران ، دانشگاه ازاد اسلامی واحد تهران مرکزی | ||
| چکیده | ||
| باگاس یکی از پسماندهای کشاورزی در کشت و صنعت‌های نیشکر و صنایع جانبی است که نگهداری و مدیریت آن معمولاً مشکلاتی را برای متولیان این شرکت‌ها به وجود می‌آورد. در این تحقیق، تأثیر خاکستر باگاس نیشکر و آهک بر مقاومت فشاری خاک رسی بررسی شده است. بدین منظور، با افزودن مقادیر مختلفی از خاکستر باگاس نیشکر شامل؛ 2، 5، 8 و 12 درصد و آهک شامل؛ 1، 3 و 4 درصد به خاک رسی، 20 نوع مخلوط ساخته شد. مشخصات تراکمی هر یک از مخلوط‌ها با استفاده از آزمایش تراکم استاندارد و سپس تراکم هاروارد تعیین شد. با در نظر گرفتن دو سن عمل‌آوری (7 و 28 روزه) و سه تکرار، 6 نمونه آزمایشی از هر مخلوط و در مجموع 120 نمونه آزمایشی با استفاده از قالب هاروارد تهیه شد و پس از عمل‌آوری در سنین مورد نظر، مورد آزمایش‌های مقاومت فشاری محصور نشده قرار گرفتند. نتایج به دست آمده از این پژوهش نشان می‌دهد که با افزایش مقدار خاکستر باگاس نیشکر و آهک به خاک رسی، وزن واحد حجم خشک کاهش و رطوبت بهینه افزایش یافته است. ترکیب 8 درصد خاکستر باگاس نیشکر با خاک رسی، باعث افزایش 92 درصدی مقاومت فشاری خاک شده است. | ||
| کلیدواژه‌ها | ||
| خاک رسی؛ تراکم هاروارد؛ خاکستر باگاس نیشکر؛ آهک؛ مقاومت فشاری محصور نشده | ||
| عنوان مقاله [English] | ||
| Stabilization of clayey soils using Bagasse fly ash and lime | ||
| نویسندگان [English] | ||
| Abdolmajid Karimi1؛ Nader Abbasi2؛ Mehdi Siavoshnia3 | ||
| 1Islamic Azad University, Tehran Branch | ||
| 2Agricultural Engineering Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj | ||
| 3Department of Technology and Engineering, Islamic Azad University of Central Tehran Branch, Tehran, Iran | ||
| چکیده [English] | ||
| Sugarcane bagasse is one of the agro-industry wastes that its maintenance and disposal makes some problems for the factories managers. In this research, the effects of lime and bagasse fly ash on the strength characteristics of a clayey soil were studied. For this purpose, 20 treatments were made by adding of different amounts of lime and bagasse fly ash to a high plastic clayey soil. In such a way four levels of lime including 0, 1, 3 and 4percent and five levels of bagasse fly ash including 0, 2, 5, 8 and 12 percent by dry weight of soil. In addition and bagasse were added to the soil with percentages of 2, 5, 8 and 12 for bagasse ash. Then, considering two curing times (7 and 28 days) and three replications, 6 specimens for each treatment and totally 120 specimens were made by using of Harward miniature compaction apparatus. The prepared samples were then tested for unconfined compressive strength at their curing ages. The results showed that the adding of Bagasse fly ash and lime increases the optimum water content and reduces maximum dry density of the clayey soil. It is also found Furthermore,The combination of 8% sugarcane bagasse ash with clayey soil has increased the compressive strength of soil by 92%. Moreover, addition of bagasse ash to the mixture of clayey soil-lime reduces the amount of unpressurised compressive strength and of the elastic modulus. According to the experimental mixtures, the combination of 2% sugarcane bagasse ash with 4% lime was obtained as the optimum composition. | ||
| کلیدواژه‌ها [English] | ||
| Soil Stabilization, Clay Soil, Bagasse ash, lime, Unconfined Compressive Strength | ||
| مراجع | ||
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Abbasi, N. (2011). The role of anions in dispersion potential of clayey soil. Journal of Agricultural Engineering Research, 12(3)15-30. (In Farsi) Abbasi, N. and Nazifi, M.H. (2013). Assessment and modification of Sherard chemical method for evaluation of dispersion potential of soils. Journal of Geotechnical and Geological Engineering, 31: 337-346. Abbasi, N. and Farjad, A. and Sepehri,S. (2017). The use of nanoclay particles for stabilization of dispersive clayey soils. Journal of Geotechnical and Geological Engineering, doi. org/ 10.1007/ s10706 - 017-0330-9 Amu, O.O.; Ogunniyi, S.A and Oladeji, O.O. (2011). Geotechnical properties of lateritic soil stabilized with sugarcane straw ash.American Journal of Scientific and Industrial Research, ISSN: 2153-649X, Issue 2, Volume 2 PP. 323-331. ASTM, (1996)."Mannual Books of ASTM Standards", American Society for testing and Materials , Philadelphia ,Pensylvania. Bowles, J. E. (1992). Engineering Properties of Soils and Their Measurement. 4th Ed. McGraw-Hill, New York Chavan, P. and Nagakumar, M.S. (2014). Studies on soil stabilization by usinng bagasse ash. International Journal of Scientific Research Engineering & Technology (IJSRET), ISSN: 2278–0882, ICRTIET-2014 Conference Proceeding, 30-31 August, 2014, PP. 89-94. Gandhi, K. (2014). Experimental study of surat region expansive soil modified using bagasse ash and wood ash. International Journal in IT and Engineering, Issue 12, Volume 2, December 2014, PP. 62-70. Kiran, R.G.and Kiran, L. (2013). Analysis of strength characteristics of black cotton soil using bagasse ash and additives as stabilizer. International Journal of Engineering Research & Technology (IJERT), ISSN: 2278-0181, Issue 7, Volume 2, July 2013, PP. 2240-2246. Kumar Sabat, A. (2012). Utilization of bagasse ash and lime sludge for construction of flexible pavements in expansive soil areas.Electronic Journal of Geotechnical Engineering, ISSN 1089-3032, Volume 17, PP. 1037-1046. Moaref, V. and labibzadeh, M. and Talashojae, M. (2013). The effect of khuzestan sugar cane bagasse on the concrete compressive strength. In: the Seventh National Congress of Civil Engineering, Faculty of Engineering Shahid Nikbakht, 17 and 18 May, Zahedan, iran, pp. 1-5. (In Farsi) Movahedan, M. and Abbasi, N. and M. Keramati. (2012). Wind erosion control of soils using polymeric materials. Eurasian Journal of Soil Science, 1 (2): 81 –86. Movahedan, M. and Abbasi, N. and M. Keramati. (2011). Experimental investigation of polyvinyl acetate polymer application for wind erosion control of soils. Journal of Water and soil (Agricultural Science and Technology), 25: 606-616 Norouzian,K. Abbasi, N. and Abedi koupai,J. (2017).Use of sewage sludge ash and hydrated lime to improve the engineering properties of clayey soils. Journal of Geotechnical and Geological Engineering. Osinubi, K.J. and Bafyau, V. and Eberemu, A.O. (2009). Bagasse ash stabilization oflateritic soil. Appropriate Technologies for Environmental Protection in the Developing World, PP.271-280. Rajasekaran. G. (2005). Sulphate attack and ettringite formation in the lime and cement stabilized marine clays, Journal of Ocean Engineering, 32 (17): 1133-1159 Rahimi H. and Abbasi, N. and H. Shantia. (2011). Application of geomembrane to control piping of sandy soil under concrete canal lining (case study: Moghan irrigation project, Iran).Journal of Irrigation and Drainage Engineering, 60: 330-337 , DOI: 10.1002/ird.574 Rahimi H. and N. Abbasi. (2007). Failure of concrete canal lining on fine sandy soils (A case study for Saveh Project). Journal of Irrigation and Drainage Engineering,57: 83-92 , DOI: 10.1002/ird.350 Siavoshnia, M. and Najafi Zadeh, A. (2011). Effect of treatment and the percentage of the shear strength of clays (CH) - a mixture of lime and rice husk ash (LRHA). In: the Sixth National Congress of Civil Engineering, University of Semnan, 6 and 7 May, Semnan, iran, pp. 1-8. (In Farsi) Shokrani, H. and Bakhshi, N. and Roghanizad, A. (2009). Experimental investigation of properties of bagasse ash as a cement replacement compared to other pozzolanic materials. Journal of Society of Civil Engineers, on No. 24, Summer 2009, Vol. XI, pp. 72-88. (In Farsi) Spark, Donald. 2000. Soil Physical Chemistry. CRC Press, Florida,33431
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