کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10622482 989291 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kinetics of formwork pressure drop of self-consolidating concrete containing various types and contents of binder
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Kinetics of formwork pressure drop of self-consolidating concrete containing various types and contents of binder
چکیده انگلیسی
A comprehensive research study was carried out to determine the effect of binder type and content on the variations in lateral and pore water pressures that can be exerted by self-consolidating concrete after casting and up to early stages of hardening. Test results show that both physical and chemical phenomena can influence the kinetics of the decrease in lateral pressure until cancellation. The former phenomenon occurs mainly during the dormant period of cement hydration, and is significantly affected by the binder type and content. Regardless of the binder type, the effect of increasing the binder content resulted in sharper drops in pressure. The cancellation of lateral pressure depends on a chemical effect and occurs after the end of the dormant period when the rate of cement hydration is accelerated. Beyond the dormant period, the progressive formation of hydration products leads to the creation of a structural network, and the pore water pressure begins to drop abruptly towards negative values.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 35, Issue 8, August 2005, Pages 1522-1530
نویسندگان
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