Numerical Study on Concrete Pumping

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  • Numerical simulation of formwork pressure while pumping

    Numerical simulation of formwork pressure while pumping self-compacting concrete bottom-up. Serge Tichko, Jens Van De Maele, Niels Numerical simulations of these formwork filling tests have also been performed for comparison with the experiments. Both the experiments and the simulations in this study revealed that the formwork pressures

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  • (PDF) Numerical Study on Concrete Pumping Behavior via

    Apr 30, 2019 · To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems.

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  • Numerical Study on Concrete Pumping Behavior via Local

    To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems. By modeling the coarse aggregates as rigid clumps and appropriately defining the contact models, the concrete flow in representative pipeline units is well revealed.

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  • Numerical Prediction on the Effects of the Coarse

    tics on the rheological properties of mortar or concrete itself. The study on the effects of the aggregate charac-teristics to the pumpability of concrete has scarcely been performed thus far due to the difficulty in experimenta-tion on concrete pumping. Recently, there have been some numerical studies in

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  • Symmetry | Free Full-Text | Comparison Study on the

    Phase change material (PCM) is a substance that can absorb or release sufficient latent heat at phase transition. By encapsulating phase change paraffin in hollow steel balls in the concrete, an energy pile with PCM was innovatively produced to improve energy efficiency for the ground heat pumping system. Laboratory tests were carried out on both PCM energy pile and traditional concrete pile

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  • Numerical simulation of fresh concrete flow: insight and

    Numerical simulation of fresh concrete flow: insight and challenges in concrete technology are advancing into a scientific‐based approach, where both experimental studies and numerical simulations are utilised to achieve an optimum mix design and an effective placement into formwork at the jobsite. plays an important role in a pumping

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  • Experimental and Numerical Studies on Flexural Behavior of

    Jan 01, 2016 · A three-dimensional nonlinear finite element model was established by using ABAQUS, which incorporated the concrete damage plasticity model and can be used to predict the postfracture behaviors. The numerical model was experimentally validated by using the three-point bending test results and was then used for parametric studies.

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  • (PDF) Numerical Evaluation of the Opening Effects on the

    A finite element method was used in this study to investigate the effects of openings on the resistive behavior of concrete slabs. The presented modeling procedure is used to conduct numerical

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  • Numerical Study on Concrete Pumping Behavior via Local

    Concerning the specific concrete pumping problem, few publications report its numerical simulation. As a first choice, CFD is used to simulate the concrete flow as viscous fluid in the pipe; as a result, the total pressure-flow rate relationship is obtained and compared with a real-size pumping experiment [ 14, 43 ]).

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  • Numerical simulation of formwork pressure while pumping

    Numerical simulation of formwork pressure while pumping self-compacting concrete bottom-up. Serge Tichko, Jens Van De Maele, Niels Numerical simulations of these formwork filling tests have also been performed for comparison with the experiments. Both the experiments and the simulations in this study revealed that the formwork pressures

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  • (PDF) Numerical Study of a Concrete Core Temperature

    NUMERICAL STUDY OF A CONCRETE CORE TEMPERATURE CONTROL (CCTC) BUILDING FOR TROPICS Bharath Seshadri1, Swapnil Dubey1, Wan Man Pun2 1 Energy Research Institute, Nanyang Technological University ([email protected]), #06-04 CleanTech One, 1 CleanTech Loop, Singapore 637141 2 School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 50 Nanyang Avenue, Singapore …

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  • (PDF) Numerical Reliability Study Based on Rheological

    Sep 02, 2021 · Numerical Reliability Study Based on Rheological Input for Bingham Paste Pumping Using a Finite Volume Approach in OpenFOAM. September 2021; in, e.g., concrete pumping, is still necessary to

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  • Numerical simulation of fresh concrete flow: insight and

    Numerical simulation of fresh concrete flow: insight and challenges in concrete technology are advancing into a scientific‐based approach, where both experimental studies and numerical simulations are utilised to achieve an optimum mix design and an effective placement into formwork at the jobsite. plays an important role in a pumping

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  • Numerical simulation of concrete pumping process and

    Feb 01, 2012 · A numerical simulation based on CFD and discrete element method was conducted. The solid-fluid multiphase flow problem in concrete pumping progress was studied. A model for understanding the erosion severity on the wall was established. The maximum erosion was observed at 30°∼40° of the outer wall. The results have good agreements with those observed in actual case.

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  • Advanced Numerical Study of Composite Steel-Concrete

    Advanced Numerical Study of Composite Steel-ConcreteMembers at High TemperatureAuthors: Rafael Barros, Ricardo Silveira, Dalilah Pires, Agor LemesPresented b

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  • From analytical methods to numerical simulations: A

    Sep 01, 2021 · The following is a brief summary of selected numerical modelling works on the concrete pumping. The majority of the published research on numerical modelling of concrete pumping utilizes the Computational Fluid Dynamics (CFD) approach [ 18, 102 ], in which concrete is modelled as one single or as multiple phases in a continuum.

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  • Numerical Simulation of Pumping Well-Underground Concrete

    With the foundation pit of south air shaft nearby Qiantang River, Subway , Hangzhou, Zhejiang province as an example, the interaction between pumping wells and underground concrete wall, together with the soft curtain formed by recharging wells are simulated with numerical method. The results indicate that the proper position of filter tube of pumping well to underground concrete wall can

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  • Numerical Study on Concrete Pumping Behavior via Local

    Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method

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  • Numerical study of mixed-mode fracture in concrete

    In the present paper, a finite element code based on the microplane model for concrete is used for the analysis of typical mixed-mode geometries: a Single-Edge-Notched beam, a Double-Edge-Notched specimen and a Dowel-Disk specimen. A local smeared fracture finite element analysis is carried out. As a regularization procedure, the crack band method is used. The principal objective of the study

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  • Numerical Study of the Effect of Perforation Friction and

    Sep 01, 2021 · Compared to tests, numerical simulation methods can better represent the reservoir in situ conditions and the nonlinear dynamic boundary problem, which is influenced by many factors, such as the Young modulus of the target layer, fracturing fluid viscosity, and pump rate . Therefore, the numerical simulation method is suitable for simultaneous

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