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Author Hosseinpoor, Masoud ♦ Khayat, Kamal H. ♦ Yahia, Ammar
Source SpringerLink
Content type Text
Publisher Springer Netherlands
File Format PDF
Copyright Year ©2017
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword Blocking ♦ Dynamic segregation ♦ Flow simulation ♦ Heterogeneous analysis ♦ L-Box test ♦ Self-consolidating concrete ♦ Structural Mechanics ♦ Materials Science ♦ Theoretical and Applied Mechanics ♦ Operating Procedures, Materials Treatment ♦ Civil Engineering ♦ Building Materials
Abstract A computational fluid dynamics software was employed to simulate the coupled effect of reinforcing bar spacing and coarse aggregate content on the blocking resistance and shear-induced segregation of self-consolidating concrete (SCC) along the horizontal channel of the L-Box apparatus. The rheology of the modelled suspending fluid, which corresponds to the stable and homogeneous portion of the mixture, consists of plastic viscosity value of 25 Pa s, yield stress values of 75 Pa, fluid density of 2500 kg/m$^{3}$, and shear elasticity modulus value of 100 Pa. Two different values of 20-mm spherical particles (135 and 255 particles in total), as well as three bar arrangements consisting of 0, 3, and 18 bars distributed along the horizontal channel of the L-Box were considered in the numerical simulations. A new approach is proposed to evaluate the coupled effect of reinforcing bar arrangements and the number of spherical particles on the flow performance of SCC.
ISSN 13595997
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2017-04-07
Publisher Place Dordrecht
e-ISSN 18716873
Journal Materials and Structures
Volume Number 50
Issue Number 2
Page Count 15
Starting Page 1
Ending Page 15

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Source: SpringerLink