کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1457081 989240 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of a low temperature hardening Inorganic Phosphate Cement for high-temperature applications
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Evaluation of a low temperature hardening Inorganic Phosphate Cement for high-temperature applications
چکیده انگلیسی

Phase and mechanical changes of Inorganic Phosphate Cement (IPC) are identified along with changes in macro properties as functions of temperature and time. In addition to amorphous phases, the presence of significant amounts of brushite and wollastonite in the reference IPC is confirmed using X-ray diffraction. The thermal behavior of IPC up to 1000 °C shows that contraction of the solid phase in IPC due to chemical transformations causes reduction in the volume of the material. Also the ongoing meta-stable calcium phosphate transformations and reactions over a long time contribute significantly to the phase instability of the material at ambient conditions. It is found that the strength of IPC increases with ageing at ambient conditions but the formation microcracks below 105 °C causes a sharp reduction in the mechanical performance of IPC. According to the results obtained by Mercury intrusion porosimetry, the pore system of the reference IPC is dominated by mesopores.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 41, Issue 1, January 2011, Pages 38–45
نویسندگان
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