کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4918248 | 1428755 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of alkali activated cements and concrete mixture design with high volumes of red mud
ترجمه فارسی عنوان
توسعه سیمان فعال و قلیایی و طراحی مخلوط بتن با حجم بالا گلدان قرمز
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کلمات کلیدی
آلومینیوم فعال سیمان، بتن، گل سرخ، تشکیل ساختار،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Dedicated cement compositions were formulated to enable the incorporation of large volume fractions of red mud in alkali activated cements, taking into account the role of the aluminosilicate phase in the processes of hydration and hardening. High volume red mud alkali activated cements were synthesized using a proper combination of red mud, low basic aluminosilicate compounds with a glass phase (blast-furnace slag) and additives selected from high-basic Ca-containing cements with a crystalline structure (Portland cement). Compressive strength of the cements under study is 30-60Â MPa (tested in mortar). The microstructure of the hardened cement paste and the role of red mud in the structure formation process were investigated. In addition to the use of red mud in cement, its use as an aggregate in concrete was studied to enable the use of larger quantities in the final concrete. In concrete road bases, the use of red mud can reach even 90% by mass. Since enhanced concentrations of naturally occurring radionuclides can be present in red mud this aspect was investigated to make sure that these materials are safe to use from a radiological point of view.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 151, 1 October 2017, Pages 819-826
Journal: Construction and Building Materials - Volume 151, 1 October 2017, Pages 819-826
نویسندگان
Pavel Krivenko, Oleksandr Kovalchuk, Anton Pasko, Tom Croymans, Mikael Hult, Guillaume Lutter, Niels Vandevenne, Sonja Schreurs, Wouter Schroeyers,