کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6746835 | 1429442 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative flexural performance of compacted cement-fiber-sand
ترجمه فارسی عنوان
عملکرد خمشی مقایسه شده از شن و ماسه فشرده سیمان-فیبر
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کلمات کلیدی
خاک تقویت شده فیبر عملکرد انعطاف پذیر، ژئوسنتتیک، مواد پوشش تثبیت خاک، سختی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
This research investigates the influence of seven different fiber types on the flexural performance of compacted cement-fiber-sand (CCFS) with four fiber fractions (0.5, 1, 1.5 and 2% by volume). The seven types of fibers are 12â¯mm polypropylene, 19â¯mm polypropylene, 40â¯mm polypropylene, 55â¯mm polypropylene, 33â¯mm steel, 50â¯mm steel and 58â¯mm polyolefin fibers. The overall CCFS performance was divided into seven sub design performance indicators: (1) peak strength; (2) peak strength ratio; (3) residual strength ratio; (4) ductility index; (5) toughness; (6) equivalent flexural strength ratio; and (7) maximum crack width. The interaction mechanism of the fiber/cement-sand interface was investigated by scanning electron microscopy. Finally, the effectiveness of each fiber type was compared and rated in terms of the overall performance. The results show that the 50â¯mm steel fiber provided the best overall sub performance, resulting in an excellent overall flexural performance; in comparison, the 12â¯mm polypropylene fiber exhibited very poor performance. However, the 19â¯mm polypropylene and 33â¯mm steel fiber specimens provided very good and good overall performances, respectively. The nature of the fiber surface and the fiber length affects the overall performance of CCFS. The surface of the steel fibers, compared to the other synthetic fiber types, is more hydrophilic and is more compacted in a cemented-sand matrix without separation of the interfacial zone, providing the best overall flexural performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geotextiles and Geomembranes - Volume 46, Issue 4, August 2018, Pages 414-425
Journal: Geotextiles and Geomembranes - Volume 46, Issue 4, August 2018, Pages 414-425
نویسندگان
Pitthaya Jamsawang, Thanawan Suansomjeen, Piti Sukontasukkul, Pornkasem Jongpradist, Dennes T. Bergado,