کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6723696 503603 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical method for predicting Young's modulus of heated cement paste
ترجمه فارسی عنوان
یک روش عددی برای پیش بینی مدول یانگ از خمیر سیمان گرم شده است
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The evaluation of the mechanical properties of heated cement paste is essential to the safety assessment of concrete structures exposed to elevated temperatures. A numerical method is developed in this paper for predicting the Young's modulus of heated cement paste with or without silica fume up to 600 °C. The initial volume fractions of various constituents and the thermal decomposition of hydration products in cement paste are approximately estimated. A two-phase composite sphere model is then built and a two-step approach is applied to evaluating the Young's modulus of heated cement paste with thermal decomposition and microcracking effects. Finally, the validity of the proposed numerical method is verified with three sets of experimental data collected from the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 54, 15 March 2014, Pages 197-201
نویسندگان
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