COST TU1404 benchmark on macroscopic modelling of concrete and concrete structures at early age: Proof-of-concept stage

Agnieszka Jedrzejewska*, Farid Benboudjema, Laurie Lacarrière, Miguel Azenha, Dirk Schlicke, Stefano Dal Pont, Arnaud Delaplace, José Granja, Karolina Hajkova, Peter Joachim Heinrich, Giuseppe Sciumè, Emanuel Strieder, Elisabeth Stierschneider, Vít Šmilauer, Vyacheslav Troyan

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Modelling of early-age behaviour of cement-based materials is still a challenging task. The challenge is implied by the extent of the knowledge on the subject which results in a variety of different models used for simulation of cement-based materials. That is why a numerical benchmark program has been launched within the COST Action TU1404 aiming at improvement and harmonisation of computational prediction of early-age behaviour of cement-based materials as well as its behaviour on structural level. This paper presents the result of the proof-of-concept stage of the benchmark.

The goal of this stage of benchmark was to compare the performance of currently used models for simulation of early-age behaviour of concrete. The participants were requested to simulate thermo-chemo-mechanical behaviour of simple concrete elements covering adiabatic and real evolution of temperature, shrinkage, stiffness and stresses accounting for early-age creep. The tasks were formulated based on the experimental measurements. This stage of benchmark allowed to evaluate the influence of different phenomena occurring in early-age concrete on the behaviour of early-age concrete structures, define the discrepancies between experimental results and numerical simulations, as well as to indicate the weak points in the models.

Original languageEnglish
Pages (from-to)173-189
JournalConstruction and Building Materials
Volume174
DOIs
Publication statusPublished - 2018

Fields of Expertise

  • Sustainable Systems

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