کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1457690 989275 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A thixotropy model for fresh fluid concretes: Theory, validation and applications
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
A thixotropy model for fresh fluid concretes: Theory, validation and applications
چکیده انگلیسی

In this paper, the methods used to measure and model thixotropy of fresh concrete in the civil engineering field are described and a simple thixotropy model is presented. It is shown that this model is in agreement with the experimental observations that can be found in the literature and a classification of SCC according to their flocculation rate Athix is proposed. The predictions of the model are compared with experimental measurements obtained with a concrete rheometer. In the last part, two applications of the model are briefly presented as examples (pressure formwork prediction and multi-layer casting of fluid concretes). It is shown that according to the element to be cast (slab or wall), a non-thixotropic SCC (low flocculation rate) or a highly thixotropic SCC (high flocculation rate) is respectively more adapted.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 36, Issue 10, October 2006, Pages 1797–1806
نویسندگان
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