Analyzing the filling performance parameters of self-compacted mortar in rock filled concrete

Rock-filled concrete RFC is a prospective construction material whose quality is affected by the filling performance of self-compacting concrete SCC in granular packs. This study focuses on improving the inclination factor equation, taking into account previously overlooked limitations. The analysis...

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Bibliographic Details
Published in:Construction & building materials 2024-06, Vol.433, p.136581, Article 136581
Main Authors: Elsherbeny, Mostafa M., Feng, Jin, Yanjie, Xu
Format: Article
Language:English
Subjects:
Drag force resistance
Filling performance
Inclination factor equation
Porous media
Rock-filled concrete
Self-compacting concrete
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Summary:Rock-filled concrete RFC is a prospective construction material whose quality is affected by the filling performance of self-compacting concrete SCC in granular packs. This study focuses on improving the inclination factor equation, taking into account previously overlooked limitations. The analysis of the filling behavior of SCC in granular packs is explored through the developed numerical models. Computational fluid dynamics CFD software OpenFOAM is conducted for simulations and calibrated with experimental data. These models consider self-compacting mortar SCM with different yield stresses poured into porous media with diverse grain shapes, sizes, and stacking modes. The concluded equation aims to provide a more precise description of SCM flow in granular packs which influence the future RFC construction projects and future studies of the filling assessment of SCM. •Theoretical Derivation of Filling Performance of SCM in RFC with New Considerations.•Improved Inclination Factor Equation of the Free Surface of SCM.•Statistical Analysis of Inclination Equation Parameters.•Comprehensive Analysis of Rheological Properties and Drag Force Resistance.
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2024.136581