37441
2016
eng
1
6
2016/88
article
Elsevier Ltd.
1
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--
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Flow of fresh concrete through reinforced elements: Experimental validation of the porous analogy numerical method
Numerical simulations of concrete castings are complex and time consuming. In order to decrease simulation time and to simplify simulation procedure, an innovative modelling approach, which treats reinforced sections in a formwork as porous media, was proposed. In the previous studies, this numerical model was proved suitable to simulate casting of model yield-stress fluids through reinforced elements. This article focuses on the experimental validation of the proposed model at the concrete scale. For this purpose, a large-scale laboratory casting of a highly reinforced beam is performed. The casting process is numerically simulated and the numerical results are compared to the experimental measurements.
Cement and Concrete Research
10.1016/j.cemconres.2016.06.003
http://www.sciencedirect.com/science/article/pii/S0008884616301880
0008-8846
30.09.2016
Ksenija Vasilic
Wolfram Schmidt
Hans-Carsten Kühne
Frank Haamkens
V. Mechtcherine
N. Roussel
eng
uncontrolled
Porous medium
eng
uncontrolled
Self-compacting concrete
eng
uncontrolled
Casting
eng
uncontrolled
CFD simulation
eng
uncontrolled
Reinforcement
Analytische Chemie
Ingenieurwissenschaften und zugeordnete Tätigkeiten
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
37442
2013
eng
229
236
conferenceobject
RILEM Publishing S.A.R.L
Paris, France
0
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Model of SCC flow through reinforced sections: experimental validation
This study focuses on concrete flow in presence of obstacles and develops a mathematical model and a computational approach for SCC flow through reinforced formworks. In order to decrease high computational times needed to simulate castings through reinforced elements, an innovative approach to model the reinforced sections as porous media is proposed here. In the previous work, this numerical model is proved able to simulate the free-surface flow of non-Newtonian fluids through the reinforcement networks. In the present study, the applicability of the model on the concrete flow will finally be proved. The large-scale form-filling experiments with SCC will be conducted and the experiments will be simulated using the proposed numerical model. The numerical model will then be validated through the comparison of the experimental results and the results of the numerical simulations.
Rheology and Processing of Construction Materials
978-2-35158-137-7
978-2-35158-138-4
7th RILEM International Conference on Self-Compacting Concrete and 1st RILEM International Conference on Rheology and Processing of Construction Materials
Paris, France
02.09.2013
04.09.2013
Ksenija Vasilic
Wolfram Schmidt
Hans-Carsten Kühne
N. Roussel
eng
uncontrolled
Porous medium
eng
uncontrolled
Rheology
eng
uncontrolled
Numerical modelling
eng
uncontrolled
Reinforcement
Analytische Chemie
Ingenieurwissenschaften und zugeordnete Tätigkeiten
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")