Zhan, Yijian, Jian Gong, Yulin Huang, Chong Shi, Zibo Zuo, and Yiqun Chen. 2019. "Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method" Materials 12, no. 9: 1415. https://doi.org/10.3390/ma12091415
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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.
26/8/2020 · Numerical Investigation of PCM Based Heat Sinks Under Constant And Variable Heat Load Conditions Sunku Prasad J, Saurabh Dongare, Anandalakshmi R, Muthukumar P Building Foundation Piles as Energy Piles: Numerical and Experimental Study
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1/2/2012 · A numerical simulation based on CFD and DEM has been conducted to study the solid–fluid multi-phase flow problem in concrete pumping progress. It is shown that the model can satisfactorily capture the key features in concrete pumping and predict …
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The study is based on the effect of packing density on the compressive strength of high-strength concrete with the application of metakaolin and conplast SP430 superplasticizer. To achieve this, five different combinations of coarse and fine aggregates for different packing densities were considered, with four different percentages of replacement of cement with Metakaolin (0%, 5%, 10%, and 15%).
Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method Yijian Zhan 1,* ID, Jian Gong 1,*, Yulin Huang 1,*, Chong Shi 2 ID, Zibo Zuo 1 and Yiqun Chen 3 1 General Engineering Institute of Shanghai Construction
30/4/2019 · Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method Yijian Zhan 1, * ID, Jian Gong 1, *, Yulin Huang 1, *, …
Fresh Concrete Pumping Arrest Investigation for Thixotropy by a CFD Modelling Approach Pages 580-587 Schryver, Robin (et al.) Preview Buy Chapter 25,95 € Numerical Simulation of the Flow Behavior of Newtonian Fluids in a Wide Gap Rheometer by CFD
1/2/2012 · A numerical simulation based on CFD and DEM has been conducted to study the solid–fluid multi-phase flow problem in concrete pumping progress. It is shown that the model can satisfactorily capture the key features in concrete pumping and predict the location of …
This article describes a numerical approach based on the Distinct Element Method (DEM) as a means of simulating fresh concrete during its different working processes. First, a rheological model for fresh concrete and its implementation into a DEM code are presented.
22/1/2015 · The rheology of concrete is predominant for the required pressures in a pumping pipe. However, more detailed information is required on the formation and the properties of the lubrication layer near the pipe surface, in order to be able to accurately predict the pressure-discharge relation. By means of experimental research in combination with advanced numerical simulations, the lubrication
7/6/2017 · Mechanics of advanced cement-based materials. Size-effect in high performance concrete road pavement materials. Modified local bond stress – slip model for self-compacting concrete. Pullout of microfibers from hardened cement paste. Shear behavior of reinforced Engineered Cementitious Composites (ECC) beams.
1/6/2016 · Presently, no study on mud-pumping benefits of geosynthetics in the track is available. All numerical analyses require geotechnical characterization of tracks and evaluation of the constitutive parameters of different track materials and interfaces.
Experimental and numerical study on the load-bearing behaviour of steel-fibre- reinforced concrete for precast tunnel lining segments under concentrated loads Chapter May 2017
29/10/2019 · In this study, a pulsating pumping regime is modelled as it would be found during the transport of concrete with a double piston pump. For this purpose, a cylindrical volume of 300 mm height and a radius of 20 mm was initially filled with spherical particles of the desired particle size distribution, which were allowed to settle under gravity.