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بررسی آزمایشگاهی خواص مکانیکی خاک سیمان تهیه شده از خاک رسی آلوده به مواد هیدروکربنی | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 15، دوره 46، شماره 1، فروردین 1394، صفحه 141-149 اصل مقاله (539.4 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2015.54303 | ||
| نویسندگان | ||
| مهدی خطیبی* 1؛ علی رئیسی استبرق2؛ نادر عباسی3؛ جمال عبداللهی علی بیک4 | ||
| 1دانشجوی کارشناسی ارشد سازه های آبی گروه مهندسی آبیاری و آبادانی دانشگاه تهران | ||
| 2دانشیار گروه مهندسی آبیاری و آبادانی دانشگاه تهران | ||
| 3دانشیار سازمان تحقیقات فنی و مهندسی کشاورزی کرج | ||
| 4مربی 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 | ||
| خاک سیمان؛ زمان عملآوری؛ گلیسرول؛ مقاومت | ||
| عنوان مقاله [English] | ||
| Experimental Assessment of Soil-cement Mechanical Behavior Incorporated with Organic Pollution | ||
| نویسندگان [English] | ||
| Mehdi Khatibi1؛ Ali Raeesi Estabragh2؛ Nader Abbasi3؛ Jamal Abdolahi Alibeyk4 | ||
| 1MSc student of Irrigation and Drainage, Department of Irrigation and Reclamation Eng., College of Agriculture and Natural Resources, University of Tehran | ||
| 2Associate professor, Department of Irrigation and Reclamation Eng., College of Agriculture and Natural Resources, University of Tehran | ||
| 3Associate professor, Agricultural Engineering research Institute, P.O. Box 31585-845, Karaj, Iran | ||
| 4Lecturer, 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 | ||
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