Analysis of L-box test for tremie pipe concrete

Alehossein, Habib, Beckhaus, Karsten and Larisch, Martin (2012) Analysis of L-box test for tremie pipe concrete. ACI Materials Journal, 109 3: 303-311.

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Name Description MIMEType Size Downloads
Author Alehossein, Habib
Beckhaus, Karsten
Larisch, Martin
Total Author Count Override 3
Title Analysis of L-box test for tremie pipe concrete
Journal name ACI Materials Journal   Check publisher's open access policy
ISSN 0889-325X
Publication date 2012-05
Sub-type Article (original research)
Open Access Status
Volume 109
Issue 3
Start page 303
End page 311
Total pages 9
Place of publication Farmington Hills, MI, United States
Publisher American Concrete Institute
Collection year 2013
Language eng
Abstract Tremie pipes are used to control concrete flow rate and minimize bleeding and dilution when placed into deep, submerged excavations. The L-box test is designed to measure workability and flowability of tremie pipe concrete as an indirect index measure of concrete viscosity and plastic yield. This test has been simulated by a mathematical model of the representative partial differential equation (PDE) derived for one-, two-, and three-dimensional (1-D, 2-D, and 3-D) applications. The L-box model solves a dimensionless PDE in terms of the flow velocity along the L-box channel length as a function of time and distance, which is analogous to a nonhomogeneous heat conduction equation. An example problem for the 1-D application has been solved both numerically (by the finite difference method) and analytically (using Fourier analysis). The two methods and results are comparable and model the concrete flow behavior as observed in standard laboratory L-box tests.
Keyword Flowability
Partial differential equation
Plastic yield
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2013 Collection
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Created: Mon, 09 Jul 2012, 10:23:29 EST by System User on behalf of School of Civil Engineering