Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
New method for measuring static segregation of self-consolidating concrete
To study self-consolidating concrete it is important to be able to characterize segregation resistance. In this paper, a segregation probe is introduced as a simple and fast method for testing static segregation of fresh concrete. The results of the segregation probe tests were verified using image analysis. A mechanics analysis was used to estimate the forces acting on the segregation probe and explain why the thickness of a paste/mortar layer at the surface of the concrete can be measured. Finally, use of the probe to determine robustness is presented. The robustness curves of the three base mixes are given. A flatter slope and larger margin indicate higher robustness. According to the slope and margin, the robustness ranking for these three base mixes was VMA> graded aggregate > mineral filler. Increased water retaining capacity by VMA and lattice effect due to better aggregate packing are factors that increased robustness.
New method for measuring static segregation of self-consolidating concrete
To study self-consolidating concrete it is important to be able to characterize segregation resistance. In this paper, a segregation probe is introduced as a simple and fast method for testing static segregation of fresh concrete. The results of the segregation probe tests were verified using image analysis. A mechanics analysis was used to estimate the forces acting on the segregation probe and explain why the thickness of a paste/mortar layer at the surface of the concrete can be measured. Finally, use of the probe to determine robustness is presented. The robustness curves of the three base mixes are given. A flatter slope and larger margin indicate higher robustness. According to the slope and margin, the robustness ranking for these three base mixes was VMA> graded aggregate > mineral filler. Increased water retaining capacity by VMA and lattice effect due to better aggregate packing are factors that increased robustness.
New method for measuring static segregation of self-consolidating concrete
Neues Verfahren zur Messung der statischen Entmischung von selbstverdichtendem Beton
Shen, Lin (Autor:in) / Struble, Leslie (Autor:in) / Lange, David (Autor:in)
Journal of Testing and Evaluation ; 35 ; 303-309
2007
7 Seiten, 9 Bilder, 4 Tabellen, 10 Quellen
Aufsatz (Zeitschrift)
Englisch
New Method for Measuring Static Segregation of Self-Consolidating Concrete
| British Library Online Contents | 2007
Modeling Static Segregation of Self-Consolidating Concrete
| British Library Online Contents | 2009
Modeling Static Segregation of Self-Consolidating Concrete
| Online Contents | 2009