کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
259603 503638 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Correlating dynamic segregation of self-consolidating concrete to the slump-flow test
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Correlating dynamic segregation of self-consolidating concrete to the slump-flow test
چکیده انگلیسی

The three key characteristics of self-consolidating concrete are flowability, segregation resistance and passing ability. Quality control of flowability is typically predicted by the final diameter (DF) of the slump-flow test. In this study, the time required to reach the final diameter (TF) of the slump-flow test is correlated to dynamic segregation for mixes with a constant DF and aggregate-to-binder ratio. Segregation was determined by measuring the radial aggregate distribution from the slump-flow test. It was demonstrated that increasing the TF improved dynamic segregation resistance. It was also found that the TF was more indicative of viscosity than the time to reach a diameter of 50 cm (T50).


► We correlate results from the slump-flow test including final diameter, time to 50 cm and time to final diameter to dynamic segregation.
► Segregation was determined by measuring the radial aggregate distribution.
► At constant aggregate content and final diameter, increasing time to final diameter improved segregation resistance.
► Time to final diameter was more indicative of viscosity than time to 50 cm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 28, Issue 1, March 2012, Pages 499–505
نویسندگان
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