کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8906499 1634413 2018 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of fiber type and content on freeze-thaw resistance of fiber reinforced lime stabilized clay
ترجمه فارسی عنوان
تأثیر نوع فیبر و محتوای بر روی مقاومت در برابر یخ زدگی از فیبر تقویت شده آهک تثبیت شده رس
کلمات کلیدی
تقویت فیبر، تثبیت آهک، استحکام فشاری نامحدود، اقدام یخ زدگی، سرعت پالس اولتراسونیک،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
In this paper, a comparison of influences of freeze-thaw action on lime stabilized basalt and polypropylene fiber reinforced clay was investigated. Specimens including 12 mm basalt and polypropylene fiber at 0, 0.5 and 1% contents by weight were compacted under standard Proctor effort at their optimum moisture contents. Some of the fiber-clay mixtures were stabilized with 3% of lime, the rest of specimens were free of lime, for comparison. All specimens were cured for 28 days in a moist room (relative humidity is 95 ± 2%) at an average temperature of 20 °C. After curing, specimens were subjected to 0, 1, 3, 7 and 10 cycles of freeze-thaw tests following ASTM procedure. A series of unconfined compression and ultrasonic pulse velocity tests were performed. Test results showed that increased application of freeze-thaw cycles caused a decrease in unconfined compressive strength and ultrasonic pulse velocity of all specimens. A linear correlation was observed between unconfined compressive strength and ultrasonic pulse velocity values. Besides, loss of mass in specimens after being exposed to freeze-thaw action was evident. Considering freeze-thaw resistance, it was understood that polypropylene fiber is more effective in comparison with basalt fiber against freeze-thaw action.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cold Regions Science and Technology - Volume 151, July 2018, Pages 359-366
نویسندگان
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