Influence of Thixotropy on Pressures Required during Pumping of Concrete
Concrete is a Very Popular Construction Material, Which Can Be Regarded as a Suspension of Solids of Several Orders of Magnitude, Suspended in Water. from a Rheological Point of View, the Fresh Fluid Concrete Mostly Obeys the Bingham Law, Showing a Yield Stress and a Plastic Viscosity. Due to the Presence of Cement, a Permanent Process of Coagulation and Dispersion Occurs, Causing the Concrete to Be Thixotropic. This Paper Describes the Influence of Thixotropy on the Measured Pressure Losses during High Speed Pumping. Apparently, the Concrete Becomes More Fluid with Increasing Discharge, Increasing the Risk for the Loss of Internal Stability, Which Can Lead to a Very Low Quality Product. © 2008 American Institute of Physics.
D. Feys et al., "Influence of Thixotropy on Pressures Required during Pumping of Concrete," AIP Conference Proceedings, vol. 1027, pp. 710 - 712, American Institute of Physics, Sep 2008.
The definitive version is available at https://doi.org/10.1063/1.2964819
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Concrete; Pumping; Thixotropy
International Standard Book Number (ISBN)
International Standard Serial Number (ISSN)
Article - Conference proceedings
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11 Sep 2008