CONTEMP – A VIRTUAL THERMO-MECHANICAL SIMULATOR FOR HYDRATING REINFORCED CONCRETE BLOCKS WITH EXTENSION TO SERVICE LIFE

Author(s): Vít Šmilauer, Luis Baquerizo, Thomas Matschei, Petr Havlásek, Wilson Ricardo Leal da Silva, Karolina Hájková
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: 463-472
Total Pages:10
Language : English

Abstract: Concrete is the single most widely used material in the world. Its performance is strongly
affected by mix design, thermal boundary conditions, its evolving mechanical properties, and
internal/external restraints with consequences to possible cracking with impaired durability. A
virtual simulator, namely ConTemp uses a staggered multiscale thermo-mechanical approach
that is able to capture relevant properties and boundary conditions for predicting temperature,
strains, stresses or cracking in concrete structures. The mechanical part uses the B3/B4 model
for concrete creep and shrinkage with isotropic damage model for cracking. ConTemp
validation on several massive concrete blocks over the world shows excellent temperature
predictions. Likewise, strain validation demonstrates good predictions on a restrained
reinforced concrete wall. Induction time for carbonation and chloride ingress is evaluated a
posteriori, based on computed crack width, reinforcement cover and environmental
conditions.

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