MODELING OF EARLY AGE CONCRETE CREEP USING RHEOLOGICAL MODELING APPROACHES

Author(s): Wibke Hermerschmidt, Farid Benboudjema
Paper category: Proceedings
Book title: proceedings of the International RILEM Conference on Materials, Systems and Structures in Civil Engineering Conference segment on Service Life of Cement-Based Materials and Structures
Editor(s): Miguel Azenha, Ivan Gabrijel, Dirk Schlicke, Terje Kanstad and Ole Mejlhede Jensen
ISBN:978-2-35158-171-4
e-ISBN: 978-2-35158-173-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 715-724
Total Pages: 10
Language : English

Abstract: Early age concrete shows a highly marked creep behavior which decreases continuously with
the progression of the hardening process. Modeling approaches for the prediction of the creep
behavior at early ages are of particular importance to perform realistic calculations of the
temperature and stress evolution in restrained concrete structures at early ages. This paper
presents a detailed investigation of rheological modeling approaches for early age concrete
creep. It aims at a better understanding and a more general description of this type of
modeling approaches, particularly with regard to their validity for different stress-strain
histories and the description of the influence of the hardening state and the temperature.
Benchmark studies with two existing rheological modeling approaches are carried out to show
differences and similarities of the approaches and to identify their ability to describe the
stress-strain behavior under different boundary conditions.

Online publication : 2016
Publication type : full_text
Public price (Euros) : 0.00