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
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 0.88-1.14 g/cm3 and bulk crushing strength of 2.04-2.66 MPa can be produced.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 179, 10 August 2018, Pages 220-231
نویسندگان
, , , ,