High torque vane rheometer for concrete: principle and validation from rheological measurements

Patrice Estellé (1) , Christophe Lanos (1)

1 LGCGM - Laboratoire de Génie Civil et Génie Mécanique

A high torque vane rheometer is used to measure the yield stress of cement-based materials. It is shown that this apparatus is suitable for the evaluation of the yield stress of various concretes and mortars in the fresh state in comparison with slump tests realized with ASTM Abrams cone. Then, the rheological properties (yield stress and shear flow behaviour) of a homogeneous kaolin clay suspension are studied with the apparatus and favourably compared with other rheometers and geometries.

Mots clés: Vane rheometer; fresh concrete; rheology; yield stress; slump

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Patrice Estellé, Christophe Lanos. High torque vane rheometer for concrete: principle and validation from rheological measurements. Applied Rheology, 2012, 22, pp.12881. ⟨10.3933/ApplRheol-22-12881⟩. ⟨hal-00673458⟩