Simulation of the Attrition of Recycled Concrete
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Simulation of the Attrition of Recycled Concrete.

Simulation of the Attrition of Recycled Concrete ...

Concrete mixing can lead to mechanical degradation of aggregates, particularly when dealing with recycled concrete aggregates. In this work, the attrition of such materials during mixing is studied by means of experiments and simulations. The effect of the presence of fines, water addition, flow configuration of the mixer (co- or counter-current) and impeller frequency is discussed.

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Simulation of the Attrition of Recycled Concrete ...

Jun 01, 2021  Simulation of the Attrition of Recycled Concrete Aggregates during Concrete Mixing Jaime Moreno-Juez 1,2 , Luís Marcelo Tavares 3 , Riccardo Artoni 2, * , Rodrigo M. de Carvalho 3 ,

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(PDF) Simulation of the Attrition of Recycled Concrete ...

Jun 01, 2021  Simulation of the Attrition of Recycled Concrete Aggregates during Concrete Mixing Jaime Moreno-Juez 1,2 , Luís Marcelo Tavares 3 , Riccardo Artoni 2, *, Rodrigo M. de Carvalho 3 ,

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Simulation of the Attrition of Recycled Concrete ...

Simulation of the Attrition of Recycled Concrete Aggregates during Concrete Mixing. Materials 2021, 14(11), 3007; ... This paper shows an interesting hot topic that is essential to understand from the recycled concrete aggregate. I see the structure is well addressed and the paper, in general, showing a good agreement of the journal ...

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Simulation of the Attrition of Recycled Concrete ...

Concrete mixing can lead to mechanical degradation of aggregates, particularly when dealing with recycled concrete aggregates. In this work, the attrition of such materials during mixing is studied by means of experiments and simulations. The effect of the presence of fines, water addition, flow configuration of the mixer (co- or counter ...

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Type of the Paper (Article

Simulation of the Attrition of Recycled Concrete Aggregates during Concrete Mixing Jaime Moreno-Juez 1,2 , Luís Marcelo Tavares 3 , Riccardo Artoni 2, *, Rodrigo M. de Carvalho 3 ,

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Simulation of the Attrition of Recycled Concrete ...

Simulation of the Attrition of Recycled Concrete Aggregates during Concrete Mixing. Materials 2021, 14(11), 3007; ... This paper shows an interesting hot topic that is essential to understand from the recycled concrete aggregate. I see the structure is well addressed and the paper, in general, showing a good agreement of the journal ...

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Simulation of cracking susceptibility in recycled concrete ...

This paper presents an investigation into the cracking susceptibility of concrete made with recycled concrete aggregates through two-dimensional numerical finite element simulations. Due to the limited experimental data on the performance of Recycled concrete Aggregate Concrete (RAC) in both compression and tension, a series of finite element ...

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Numerical Simulation of Recycled Concrete Using Convex ...

By using the Base Force Element Method (BFEM) on potential energy principle, a new numerical concrete model, random convex aggregate model, is presented in this paper to simulate the experiment under uniaxial compression for recycled aggregate concrete (RAC) which can also be referred to as recycled concrete. This model is considered as a heterogeneous composite which is composed of

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Recycled concrete aggregate attrition during mixing new ...

Jul 30, 2016  The tests compare the behavior of three types of 10/14 coarse aggregates: natural gneiss aggregates from Pontreaux (France) and two RCA differentiated by the Micro-Deval abrasion value (MDE, NF EN 1097-1) .The RCA used in this study are commercially produced by the “Gonesse Recycling Centre” located in France; these aggregates are composed of 99% recycled concrete

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Circular Concrete: an Organisational Revolution?

Figure 2: Photo (top), schematic (middle) and simulation (bottom) of the separation of fines and lights from moist crushed concrete. One of the interesting questions is how circular concrete will be organized in Europe. In one extreme case, the new technologies can be operated near mortar suppliers or near pre-fab concrete industries.

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Bogdan CAZACLIU Head of Aggregates and Materials ...

Concrete mixing can lead to mechanical degradation of aggregates, particularly when dealing with recycled concrete aggregates. In this work, the attrition of such materials during mixing is ...

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(PDF) Discrete Element Simulation Analysis of Biaxial ...

Jul 05, 2021  Concrete made with large-size recycled aggregates is a new kind of recycled concrete, where the size of the recycled aggregate used is 25–80 mm, which is generally three times that of ...

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Luis TAVARES Laboratory Head and Professor Doctor of ...

Concrete mixing can lead to mechanical degradation of aggregates, particularly when dealing with recycled concrete aggregates. In this work, the attrition of such materials during mixing is ...

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(PDF) Fracture Behaviour of Real Coarse Aggregate ...

Aug 02, 2021  Concrete mixing can lead to mechanical degradation of aggregates, particularly when dealing with recycled concrete aggregates. In this work, the attrition of

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Abrasive wear and optimal installation angle of concrete ...

May 12, 2020  Juez et al. studied the friability of recycled concrete aggregate ... (2016) Recycled concrete aggregate attrition during mixing new concrete. Constr Build Mater 116:299–309. ... (2014) Simulation of fresh concrete flow using discrete element method (DEM): theory and applications. Mater Struct 47:615–630.

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CREATION AND IMAGINATION: FULL CONCRETE RECYCLING

We found that controlled attrition of the crushed concrete down to 2.5 mm was the best way to break up the constituents; forced sieving at 0.125 mm (or a similar process) actually separates the minute particles (15 µm) of hydrated cement from the much larger sand and crushed aggregate particles.

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Frontiers Numerical Simulation of Water Transport in ...

Transport Analysis for Recycled Aggregate Concrete Mesoscale Recycled Aggregate Concrete Model. Considering that the polygonal aggregate has a huge amount of calculation for the simulation and the limited influence on water transport (Li et al., 2016; Liu et al., 2018), the round aggregates are used in our study to simplify the calculation. As ...

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expert concrete crusher mill - cafeunterdenlinden

Modeling and Simulation of Whole Ball Mill Grinding - IEEE Xplore. ... new high-efficiency china cone crusher brands brand new crushing plant with ce certificate. high efficiency concrete crusher/pe jaw stone jaw crusher china brand ... aggregates and mining today. superior #39 s attrition mill benefits a number of sand applications middot ...

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Surface treated polypropylene (PP) fibres for reinforced ...

Dec 15, 2013  @article{osti_22220826, title = {Surface treated polypropylene (PP) fibres for reinforced concrete}, author = {López-Buendía, Angel M., E-mail: [email protected] and Romero-Sánchez, María Dolores and Climent, Verónica and Guillem, Celia}, abstractNote = {Surface treatments on a polypropylene (PP) fibre have contributed to the improvement of fibre/concrete adhesion in fibre-reinforced concrete.

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Numerical simulation of mechanical properties of recycled ...

Apr 01, 2021  The interface transition zone of recycled concrete is complex and changeable, which leads to the instability of mechanical properties of recycled concrete. This paper summarizes the numerical simulation of recycled concrete and its interface transition zone, analyses the existing problems, and prospects the future development trend.

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Research Article Numerical Simulation of Recycled Concrete ...

Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method YijiangPeng,HaoChu,andJiweiPu e Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing, China Correspondence should be addressed to Yijiang Peng; [email protected]

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Simulation of cracking susceptibility in recycled concrete ...

Simulation of cracking susceptibility in recycled concrete aggregate systems book By A. Jayasuriya, M.J. Bandelt, M.P. Adams Book Computational Modelling of Concrete Structures

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Finite element simulation of recycled large aggregate self ...

In order to study the mechanical properties of recycled large aggregate self-compacting concrete filled steel tube(RLA-SCCFST) and promote the research and application of the structure, the mechanical properties of nine groups of RLA-SCCFST short columns under axial compression were studied by ABAQUS simulation. Comparing the results of finite element simulation with the test results, it is ...

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Simulation Study on the Stress Distribution in Modeled ...

Apr 04, 2013  To investigate the stress distribution in recycled aggregate concrete (RAC) under uniaxial compression, modeled recycled aggregate concrete (MRAC) was studied by numerical simulation. The mechanical properties of interfacial transition zones (ITZs) of RAC were measured by the nanoindentation technique.

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NUMERICAL SIMULATION OF CONCRETE BEAMS

NUMERICAL SIMULATION OF CONCRETE BEAMS REINFORCED WITH MIXED RECYCLED/INDUSTRIAL STEEL FIBERS Enzo Martinellia, Antonio Caggianob, Hernan D. Xargayb, Paula C. Folinob and Guillermo J. Etseb,c ...

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Numerical Simulation of Two-dimensional Chloride Diffusion ...

Numerical Simulation of Two-dimensional Chloride Diffusion Meso of Recycled Concrete Guangxu Lu, Lingqiang Yang* and Baoku Jiang School of Civil Engineering and Architecture, University of Jinan 250022, China *Corresponding author Abstract—It establishes the numerical simulation method of

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(PDF) Numerical Simulation of Water Transport in ...

Sep 21, 2020  The old mortar attached to recycled aggregate (RA) is the main reason for the difference in water movement between RA concrete (RAC) and natural aggregate concrete.

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Simulation Project Report. Final (1).docx - IE 7215 ...

1. INTRODUCTION 1.1 Cement composition A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete.

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Abrasive wear and optimal installation angle of concrete ...

May 12, 2020  Juez et al. studied the friability of recycled concrete aggregate ... (2016) Recycled concrete aggregate attrition during mixing new concrete. Constr Build Mater 116:299–309. ... (2014) Simulation of fresh concrete flow using discrete element method (DEM): theory and applications. Mater Struct 47:615–630.

Get Price

Frontiers Numerical Simulation of Water Transport in ...

Transport Analysis for Recycled Aggregate Concrete Mesoscale Recycled Aggregate Concrete Model. Considering that the polygonal aggregate has a huge amount of calculation for the simulation and the limited influence on water transport (Li et al., 2016; Liu et al., 2018), the round aggregates are used in our study to simplify the calculation. As ...

Get Price

Axis 1 - Experimental approach in the laboratory - FastCarb

Treatment of the recycled concrete aggregate: The next part of the project will focus on treating recycled concrete aggregate and assessing the impact of the activity of the bacteria on its mechanical performance. The ultimate goal will be to assess the material with regard to the amount of atmospheric CO2 it consumes.

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Numerical Simulation of Water Transport in Unsaturated ...

The old mortar attached to recycled aggregate (RA) is the main reason for the difference in water movement between recycled aggregate concrete (RAC) and natural aggregate concrete (NAC). In this study, considering the old and new interfacial transition zones (ITZs), a five-phase composite model for describing the water transport and distribution in RAC is established at the mesoscale.

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Performance of Fly Ash blended Crushed Sand Concrete ...

Apr 05, 2021  Mass Concrete Specimen Blocks. The dimensions of mass blocks for CS, FRS and FCS concretes to measure temperature rise are given in Table 5.The simulation of the inner core of 1.5 m thick mass concrete was made by positioning plywood shutters, followed by 25 mm thick polystyrene boards with low thermal conductivity (0.03–0.04 W/m.K) on all four sides as shown in Fig. 2.

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