کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1457313 989253 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste
چکیده انگلیسی

In this paper, the applicability of the ultrasonic wave transmission method to estimate the initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity measurements were fully automated and measured continuously. The Vicat Needle Test was used in order to determine the initial setting time of cement pastes. Different cement pastes were prepared in order to check the influence of the water/cement ratio, type of cement, curing temperature, cement fineness, and some clinker compositions, on the relationship between the initial setting time and ultrasonic pulse velocity. It was found that the initial setting time of an arbitrary cement paste can be estimated very accurately by the time the first inflection point appears on the ultrasonic pulse velocity curve. Moreover, it can be estimated quite accurately by the time the ultrasonic pulse velocity reaches a fixed value, close to the value of the ultrasonic pulse velocity in water.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 38, Issue 11, November 2008, Pages 1336–1342
نویسندگان
, , , ,