کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1457554 989268 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Monitoring the setting of concrete containing blast-furnace slag by measuring the ultrasonic p-wave velocity
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Monitoring the setting of concrete containing blast-furnace slag by measuring the ultrasonic p-wave velocity
چکیده انگلیسی

Ultrasonic transmission measurements allow the continuous monitoring of the setting of both mortar and concrete samples, which is important to determine for instance the formwork removal time. However, aspects such as the cause of the low initial velocity, the relation between the velocity and the setting times and the effect of cement type or cement replacing additives are still under discussion. Therefore, different concrete compositions with blast-furnace slag were tested by traditional as well as ultrasonic measurements.The ultrasonic method gives a more complete picture of the setting. The change of ultrasonic velocity in time is sensitive to the differences in setting behaviour of the tested mixtures. The initial setting seems to correspond with the inflection point of the velocity-vs.-time graphs and the final setting with the point at which the velocity increase levels off.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 38, Issue 10, October 2008, Pages 1169–1176
نویسندگان
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