Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/65964
Title: Parametric Study on Cement Grout and Aggregate Media for Preplaced Aggregate Grouting
Authors: Zhang, J. 
Swaddiwudhipong, S. 
Lee, S.L. 
Keywords: Cement grout
Permeability
Porosity
Preplaced aggregate grouting
Rheology
Viscosity
Issue Date: Mar-2004
Source: Zhang, J.,Swaddiwudhipong, S.,Lee, S.L. (2004-03). Parametric Study on Cement Grout and Aggregate Media for Preplaced Aggregate Grouting. Journal of Testing and Evaluation 32 (2) : 120-130. ScholarBank@NUS Repository.
Abstract: Experimental programs were designed carefully and appropriate testing materials were selected for the parametric study on the flow of cement grout through aggregate media during the preplaced aggregate grouting process in concrete-construction. Experimental investigations include the testing and evaluation of the viscosity of cement grout, the intrinsic permeability coefficient, and the porosity of the aggregate media. The time dependency and shear history dependency of the Theological properties of the cement grout are incorporated in the viscosity tests so as to be able to simulate more accurately the grouting process. The average shear rate of the flow is estimated from the flow velocity by determining the average nominal radius of the imaginary flow channel from the permeability testing. The resulting parameters include the yield stress and plastic viscosity of the cement grout and their time dependency, intrinsic permeability and porosity of the aggregate media, and the average nominal radius of the imaginary flow channel.
Source Title: Journal of Testing and Evaluation
URI: http://scholarbank.nus.edu.sg/handle/10635/65964
ISSN: 00903973
Appears in Collections:Staff Publications

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