کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1457249 989248 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Revealing the temperature history in concrete after fire exposure by microscopic analysis
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Revealing the temperature history in concrete after fire exposure by microscopic analysis
چکیده انگلیسی

Concrete structures behave in most cases very well during a fire, after which it is often possible to repair or strengthen the structure to a certain level. This could result in important economic benefits, as costs for demolition and rebuilding can be avoided and the building can be reused faster. In this paper three methods for determining the maximum temperature to which a concrete structure was submitted during a fire are studied. Knowledge of the temperature distribution is necessary to assess the overall damage of a concrete structure. First, the physico-chemical transformations of heated concrete are investigated with scanning electron microscopy (SEM). Secondly, the features visible under the polarising and fluorescent microscope (PFM) are discussed. And third, the influence of heat on the colour of the aggregates is analysed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 39, Issue 12, December 2009, Pages 1239–1249
نویسندگان
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