کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9694070 | 1459638 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Formation and hydraulic behavior of chromium-phosphorus doped calcium sulfoaluminate cement
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The formation and the hydration processes of solid solutions based on calcium sulfoaluminate with chromium and phosphorus additions are studied. The synthesized solid solutions are analyzed with X-ray diffraction and infrared spectroscopy. The high concentrations of additives slow the formation of the calcium sulfoaluminate phase. The early hydration behavior is followed by Tian-Calvet calorimetry. The results show that incorporation of chromium and phosphorus in the crystal lattice of calcium sulfoaluminate induces a long induction period. The setting period in the doped sample has a higher heat output than the pure phase. Identification of the hydration products is done by differential thermal analysis (DTA). The degree of transformation of ettringite into the monosulfate is lower in the modified calcium sulfoaluminate than in the additives-free cement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 433, Issues 1â2, 1 August 2005, Pages 183-186
Journal: Thermochimica Acta - Volume 433, Issues 1â2, 1 August 2005, Pages 183-186
نویسندگان
My.Y. Benarchid, J. Rogez, A. Diouri, A. Boukhari, J. Aride,