کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7046902 1457120 2016 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and modeling investigation of the thermal conductivity of fiber-reinforced soil subjected to freeze-thaw cycles
ترجمه فارسی عنوان
بررسی تجربی و مدلسازی هدایت حرارتی خاک های تقویت شده فیبر تحت چرخه یخ زدایی
کلمات کلیدی
هدایت حرارتی، یخزدن، خاک تقویت شده فیبر مدل فیزیکی آماری،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The thermal conductivity of fine-grained soil, both unreinforced and reinforced with randomly oriented basalt, glass, and steel fibers, was tested by means of the transient hot-wire method with a Quickline-30 Thermal Properties Analyzer. The thermal conductivities of specimens were determined as a function of fiber volume fractions, freeze-thaw cycles, and temperature through laboratory studies. Thermal conductivity of the fiber-reinforced soil decreased for all freeze-thaw cycles and temperature values. The most remarkable reduction of thermal conductivity was measured on all ratios of the steel fiber-reinforced soil and 1% basalt fiber-reinforced soil. Moreover, the statistical-physical model proposed by Usowicz was applied to evaluate the thermal conductivity of fiber-reinforced soil by considering soil-fiber composites and environmental factors. The results showed a close match between the values estimated by the statistical-physical model and the experimental values for various fiber-reinforced soils in a wide range of fiber ratios, temperatures, water contents, and freeze-thaw cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 108, 5 September 2016, Pages 824-832
نویسندگان
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