Distinct-layer casting of SCC: The mechanical consequences of thixotropy

By Nicolas Roussel, F. Cussigh. 2008

245 citations recorded by the source corpus.

Subfields: Building and Construction, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/6b5229027d296f08a2457815d8b6409f3f65bcf8

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In Building and Construction

In Civil and Structural Engineering

Citations in the corpus

Effects of layer-interface properties on mechanical performance of concrete elements produced by extrusion-based 3D-printing (2018, background): “In case of both “neighboring” layers being in a plastic state or one being in a plastic state and another quasi-plastic, the common case in extrusion-based 3D-printing, the rheological properties [10] of both “substrate” and “overlay”, significantly influence the interface properties.”
Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing (2018, background): “An obvious path of research for 3D concrete printing focuses on the ﬁ nal, hardened printed product, including the interface strength be-tween layers, which is expected to deteriorate for larger interval times between layers [10].”
Hardened properties of 3D printed concrete: The influence of process parameters on interlayer adhesion (2019, background): “To avoid the occurrence of distinct layers in cast Self-Compacting Concrete and associated loss of mechanical strength that can be as much as 40% [12], Roussel & Cussigh [13] observed that the structuration rate (thixotropic behaviour) should remain below a threshold value to allow subsequent layers”
Effect of printing parameters on interlayer bond strength of 3D printed limestone-calcined clay-based cementitious materials: An experimental and numerical study (2020, background): “This phenomenon has been initially observed in self-compacting concrete [25,29] and was confirmed by several recent studies about printable cementitious materials [27,30].”
Structural built-up of cement-based materials used for 3D-printing extrusion techniques (2016, background): “For instance, formwork pressure reduction or distinct-layer casting issues can be predicted using the structural build-up rate of self-compacting concrete [21–24].”
Thixotropic structural build-up of cement-based materials: A state-of-the-art review (2021, background): “Roussel [136] simulated the influence of thixotropic build-up on the intermixing of delayed casting layers during the concrete casting process.”