کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6716063 1428742 2018 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Micro-mechanical modelling for the prediction of alkali-silica reaction (ASR) expansion: Influence of curing temperature conditions
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Micro-mechanical modelling for the prediction of alkali-silica reaction (ASR) expansion: Influence of curing temperature conditions
چکیده انگلیسی
The alkali-silica reaction causes long-term degradation of microstructure of cement paste and aggregate, and as results in macroscopic expansion. In this paper, a micro-mechanical expansion model was developed coupling with the damage and thermodynamic theory. First of mortar thermal coefficients were estimating to determine the true expansion due to ASR based on EPMA and MIP results and expansion proposed in this paper were compared with analysis results of Suwito's and Multon's model. The results indicate that the increasing of temperature conducted reduced fluctuations of ASR expansion coefficient of cement paste. In addition, our proposed model accurately reproduces the true-dependency of expansion due to ASR with the lowest error. Overall, the proposed microscopic expansion model is able to apply for numerical analyse of deteriorated due to ASR concrete structure designs with in the deterioration of ASR in the future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 164, 10 March 2018, Pages 554-569
نویسندگان
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