کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6712661 | 1428727 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance assessment of core-shell structured lightweight aggregate produced by cold bonding pelletization process
ترجمه فارسی عنوان
ارزیابی عملکرد سازه وزن سبک وزن ساختار هسته ای تولید شده توسط فرآیند گرانوله سازی پیوند سرد
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کلمات کلیدی
مخلوط سبک وزن سرد پرلیت گسترش یافته، گلوله سازی، بهره وری تولید، قدرت خرد کردن انبوه، فعالیت پوزولانیک،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
The density of cold-bonded lightweight aggregates is significantly higher than that of sintered lightweight aggregates. Since the sintering technique consumes an enormous amount of energy and emits a huge amount of pollutants, the implementation of a cold-bonded method, in manufacturing low-density lightweight aggregates, is very important from an economic and environmental perspective. In this study, a cold bonding granulation technique was employed to produce low-density lightweight aggregate by the encapsulation of expanded perlite particles in shell structures. A variety of tests were conducted to evaluate the physical and mechanical properties of the aggregate produced. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to study the microstructure and the phase composition of the aggregate. Furthermore, X-ray micro-computed tomography (CT) was performed to investigate the pore system of the aggregate specimens. The obtained results showed that by adopting the angle and speed of pelletizer disc, a core-shell structured lightweight aggregates with particle density of 0.88-1.14â¯g/cm3 and bulk crushing strength of 2.04-2.66â¯MPa can be produced.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 179, 10 August 2018, Pages 220-231
Journal: Construction and Building Materials - Volume 179, 10 August 2018, Pages 220-231
نویسندگان
Feras Tajra, Mohamed Abd Elrahman, Sang-Yeop Chung, Dietmar Stephan,