Steady and transient flow behaviour of fresh cement pastes

By Nicolas Roussel. 2005

300 citations recorded by the source corpus.

Subfields: Building and Construction, Fluid Flow and Transfer Processes, Ocean Engineering

View Paper: https://www.semanticscholar.org/paper/c115ad3995b09331d0859300794725afc224fcb8

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In Building and Construction

In Fluid Flow and Transfer Processes

In Ocean Engineering

Citations in the corpus

Computational modeling of concrete flow: General overview (2007, methodology): “[10] Roussel, N., Staquet, S., D’Aloia Schwarzentruber, L., Le Roy, R., Toutlemonde, F., SCC casting prediction for the realization of prototype VHPC-precambered composite beams, Accepted for publication in RILEM Materials and Structures.”
Properties of fresh and hardened concrete (2011, background): “Several authors [25–34] have demonstrated that, when left at rest,”
Multi Scale Experimental Study of Concrete Rheology: From Water Scale to Gravel Scale (2005, background): “When submitted to controlled increasing or decreasing shear rates, processes of structural breakdown and structural rebuild occur in non Newtonian materials such as cement pastes [ 12 ].”
Lubrication layer properties during concrete pumping (2013, methodology): “In each viscometer, the measuring procedure was initiated with a 30 s high speed phase to eliminate any thixotropy and structural breakdown artifacts [24,25].”
Yield stress and bleeding of fresh cement pastes (2012, background): “In this latter case, structural build up [31–33], CSH early nucleation between cement grains and fast rigidification of the paste due to high chemical activity [34,35] could play a non neglectable role on the stabilization of cement grains [36].”
Prediction of lateral form pressure exerted by concrete at low casting rates (2015, methodology): “It is worth noting that the Taylor series of the exponential function e at t=0 is 1+t which relates to the linear form of yield stress time evolution assumed by Roussel [14-15].”
Fresh self compacting concrete, a shear thickening material (2008, background): “Thixotropy has been eliminated by stepwise decreasing the rotational velocity in the rheometers [5–7], after a sufficiently long pre-shearing period (in the order of 20 s).”
A Physical Model for the Prediction of Lateral Stress Exerted by Self-Compacting Concrete on Formwork (2005, background): “Even if their steady flow may be described by the above models, the characteristic time to reach it may be rather long [14] and, after a long time of rest, the stress to be applied for flow to occur may be one or two orders higher than the yield stress measured when the material is flowing [15].”
Flowability of fibre-reinforced concrete and its effect on the mechanical properties of the material (2010, background): “For concrete, the parameters s0 and l0 in the Bingham equation are not constant in time, due to the development of thixotropy and loss of workability [19,20].”
A thixotropy model for fresh fluid concretes: Theory, validation and applications (2006, methodology): “025 of the behavior, a static yield stress τ0s can be measured that increases with the resting time before the test whereas the dynamic yield stress τ0d corresponding to steady state does not depend on the material flow history [1,2].”