کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5437173 1509726 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Examining the “time-zero” of autogenous shrinkage in high/ultra-high performance cement pastes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Examining the “time-zero” of autogenous shrinkage in high/ultra-high performance cement pastes
چکیده انگلیسی
There is a general agreement about the existence of a relationship between autogenous shrinkage and RH changes in hardening cement paste. An improved hygrometer method was developed for monitoring the change of internal RH in cement pastes 1 h after casting. This provides immediate experimental results of RH change for determining the “time-zero”. It indicates that the internal RH of cement pastes does not decrease immediately after the final setting time. A new “time-zero” is defined as the onset of internal RH drop, which is more reasonable for estimating the cracking potential of cement-based materials, compared to the “time-zero” represented by the final setting time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 97, July 2017, Pages 107-114
نویسندگان
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