Performance study of new lightweight cementitious composites with glass beads as filler

Ni, Guanhua; Fu, Zhenglin; Li, Zhao; Sun, Gongshuai; Zhang, Xiangfei; Wang, Gang; Wang, Zhenyang; Liu, Yixin; Xu, Chuanhua

doi:10.1016/j.jobe.2024.109477

Journal of Building Engineering

2024

DOI: 10.1016/j.jobe.2024.109477

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Performance study of new lightweight cementitious composites with glass beads as filler

Guanhua Ni,

Zhenglin Fu,

Zhao Li

et al.

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Cited by 1 publication

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Study on the Flow Velocity of Safe and Energy-Saving Transportation of Light-Particle Slurry

Wang,

Hao

et al. 2024

Applied Sciences

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In order to determine the recommended flow velocity for the safe and energy-saving transport of ice-slurry-type light particle slurries, it is necessary to study the flow characteristics of light particle slurries, especially the critical flow velocity. Therefore, in this paper, a numerical simulation method based on the mixed turbulence model with the RANS (Reynolds averaged Navier Stokes) equation is used, and a new concentration distribution method is proposed for the first time to derive the critical flow velocity, as follows: the flow velocity of the light particle slurry when the ratio of the solid volume fraction vf at the position of 0.08D above the bottom of the pipeline to that at the center of the pipeline, vf/vf(y) = 0.75, is taken as the critical flow velocity. The flow changes in the slurry (polyethylene particles with a density of 922 kg/m3 and water) under 0.1–1.0 m/s (at intervals of 0.1 m/s) were investigated experimentally, and the pressure drop data obtained from the experiments were used to determine the recommended flow rate for safe and energy-saving transportation of the light particle slurry. The pipe diameter used for the experiments and simulations was 28 mm, and the solid-phase particle sizes were 0.3 mm, 0.4 mm, and 0.5 mm, with solid-phase contents of 5 vol%, 10 vol%, 15 vol%, and 20 vol%. In addition, the experimental and numerical simulation results show that an increase in solid-phase content and particle size leads to an increase in critical flow velocity.

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Study on the Flow Velocity of Safe and Energy-Saving Transportation of Light-Particle Slurry

Wang,

Hao

et al. 2024

Applied Sciences

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show abstract

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Performance study of new lightweight cementitious composites with glass beads as filler

Cited by 1 publication

References 39 publications

Study on the Flow Velocity of Safe and Energy-Saving Transportation of Light-Particle Slurry

Study on the Flow Velocity of Safe and Energy-Saving Transportation of Light-Particle Slurry

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