Rheological model for self consolidating concrete

Port Manteaux churns out silly new words when you feed it an idea or two.Enter a word (or two) above and you'll get back a bunch of portmanteaux created by jamming together words that are conceptually related to your inputs.A convenient method to study the variation of these rheological parameters is proposed, using the mortar of the concrete.This latter is designed from the concrete mixture, taking in account the liquid and solid phases with a maximum granulometry of 315 μm.This helps the SCC to satisfy the performance requirement in the field, such as giving a smooth surface finish, encapsulate the reinforcement without blocking of aggregates, etc.Because of the material performance in its fresh state, the existing testing methods for conventional concrete are no longer suitable for SCC.

The rheological behavior related to workability of the fresh concretes was investigated by using the ICAR rheometer.Conventional hydraulic cylinders are simulated in FLUENT. Singh, "Derivation of design requirements for optimization of a high performance hydrostatic actuation system," International Journal of Fluid Power, vol. Results show that the small outlet ports are the sources of energy loss in hydraulic cylinders. Different SCC and mortars proportioned with two types of high range water reducing admixtures (HRWRA) were prepared at temperatures ranging from 10 to 33 °C.Test results indicates that the yield stress and the plastic viscosity of the mortar mixtures vary in a linear way with the elapsed time while an exponential variation of these rheological parameter is seen on SCC.

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