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Abstract:
The lattice Boltzmann method and Herschel-Bulkley model were combined to establish a three-dimensional simulation model of V-funnel test for fresh concrete. The variation of the flow field in V-funnel test was explored, and the method of evaluating the filling ability of concrete was optimized. The experimental results showed that the accuracy of numerical simulation of V-funnel test was high, whose error was less than 6%. Based on the V-funnel test model, the effects of rheological parameters on the test process and results were discussed and analyzed. The results demonstrated that the increase of rheological parameters prolonged the discharge time. The average velocity uV at the termination of V-funnel test was proposed as an indicator to quantitatively evaluate the filling ability, and a new method was established to qualitatively determine the shear-thickening/thinning characteristics of fresh concrete during the V-funnel test. © 2022 Elsevier Ltd
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Cement and Concrete Composites
ISSN: 0958-9465
Year: 2022
Volume: 133
1 0 . 5
JCR@2022
1 0 . 5 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:66
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 8
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
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