Experimental study of cement grout: Rheological behavior and sedimentation

By F. Rosquoet, A. Alexis, A. Khelidj, A. Phelipot. 2003

171 citations recorded by the source corpus.

Three basic elements (cement, water and admixture) usually make up injectable cement grouts used for prestressed cable coating, repair and consolidation of masonry, soil grouting, etc... The present study was divided into two parts. First, in order to characterize rheologically fresh cement paste with W/C ratios (water/cement ratio) varying between 0.35 and 1, an experimental study was carried out and has revealed that the cement past behaves like a shear-thinning material whatever W/C. second, to study the time evolution of their density, a gammadensitometer bench was used. Relying on the water content and the density measured, we demonstrate that the computation of the degree of hydration of cement is possible. The cement/geotechnics interdisciplinary approach proposed here has made it possible to obtain a large range of original results useful to improve our understanding of the sedimentation processes for cement pastes with different W/C ratios.

Subfields: Civil and Structural Engineering, Industrial and Manufacturing Engineering, Ocean Engineering

View Paper: https://www.semanticscholar.org/paper/b28eb3bbb954bc0361f311f01fea6509ed11f42d

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Citations in the corpus

Lubrication layer properties during concrete pumping (2013, background): “a nonlinear material behavior), by shear thickening or shear thinning [31–35] or by any pressure dependency of the rheological parameters of the pumped materials [36,37].”
An investigation of rheological properties of cement-based grout mixed with rice husk ash (RHA) (2015, background): “Summary scheme of the different fields of use of cement grouts [58].”
Generalized Approach for Prediction of Jet Grout Column Diameter (2013, methodology): “In this study, a correlation between apparent laminar viscosity of grout (mg) and water/cement ratio by weight (W/C) was derived using regression analysis based on published data (Raffle and Greenwood 1961; Chen et al. 2003; Chupin et al. 2003; Rosquoet et al. 2003), as indicated in Fig.”
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].”