کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7883460 1509641 2018 52 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Squeeze flow coupled with dynamic pressure mapping for the rheological evaluation of cement-based mortars
ترجمه فارسی عنوان
جریان جابه جایی همراه با نقشه برداری فشار پویا برای ارزیابی رئولوژیکی ملات های مبتنی بر سیمان
کلمات کلیدی
ملات، فشردن جریان، نقشه برداری فشار، توزیع فشار، جداسازی فاز،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
The squeeze flow test provides relevant information about the macroscopic rheological behavior of mortars. Nevertheless, the identification and characterization of micro and meso physical phenomena is necessary for a more thorough analysis. This work presents an experimental methodology that combines the squeeze flow test with a pressure mapping system for the rheological evaluation of cement-based mortars. Two compositions were analyzed, with and without viscosity modifying cellulose ether based admixture, and the liquid phase migration was quantified to support the interpretation of the results. The developed pressure mapped squeeze flow (PMSF) method allowed for reliable measurement of the evolution of the pressure distribution on the whole area of the squeezed sample, and the results were compared with theoretical models for different flow types and rheological behaviors. The presence of the cellulose ether admixture resulted in more homogeneous flows, which enabled bigger displacements and generated less fluctuations in the pressure distributions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 92, September 2018, Pages 18-35
نویسندگان
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