Anzeige
Erschienen in:
2020 | OriginalPaper | Buchkapitel
Evaluation of Structural Build-Up Rate of Cementitious Materials by Means of Constant Shear Rate Test: Parameter Study
verfasst von : Irina Ivanova, Viktor Mechtcherine
Erschienen in: Rheology and Processing of Construction Materials
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
Accurate characterisation of static yield stress evolution with time enables correct evaluation of the structural build-up rate for cement-based materials. This parameter is fundamentally important for many construction processes, including conventional in-situ concrete construction, various digital fabrication techniques, well cementing, etc. The paper at hand presents a parameter study on determination of structural build-up by means of constant shear rate test. It is shown, how the choice of single or multiple samples as well as different constant shear rates and pre-shear regimes influences the apparent time-dependent static yield stress evolution of cementitious materials and, hence, the accuracy of structural build-up rate evaluation. Respective recommendations for decreasing error in measurements of static yield stress are provided.