Rheological and Tribological Characterization of Concrete in the Context of Estimating its Pumpability

Author(s): Egor Secrieru, Viktor Mechtcherine, Simone Palzer
Paper category: Conference
Book Title: 8th International RILEM Symposium on Self-Compacting Concrete - SCC 2016
Editor: Kamal H. Khayat
ISBN: 978-2-35158-156-8
e-ISBN: 978-2-35158-157-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 319-328
Total Pages: 10
Language: English

Abstract: The flow of fresh concrete in the pipeline is a complex process. In the first instance it is influenced by the composition of concrete and its ability to generate lubricating material, while reducing the friction at the pipe wall-concrete interface. The article at hand discusses the characteristic differences in rheological properties and pumpability of ordinary concrete with rounded and crushed aggregates, with and without partial cement replacement through fly ash, as well as self-compacting mortar (SCM) and self-compacting concrete (SCC). In the attempt to estimate the concrete pumpability, an experimental methodology based on rheometry and tribometry is employed. The prediction of pumpability is validated by the so-called Sliding Pipe Rheometer (SLIPER) and small-scale pumping tests.

Online publication: 2016
Publication Type: full_text
Public price (Euros): 0.00