A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recent developments in evaluating pumping behavior of flowable and self-consolidating concretes
In this paper, recent developments in evaluating pumping behavior of flowable and self-consolidating concrete (SCC) are discussed. First, a brief overview of the underlying physics of pumping of concrete is given to introduce the concepts of friction, flow, hydrodynamic and hydrostatic pressure and to present the concept of the lubrication layer. Various methods to assess the lubrication layer properties are then discussed, including tribology and different visualization techniques for the velocity profile. Using tribology on the one hand, or by combining the rheological properties of the concrete and its constituent mortar and knowing the thickness of the lubrication layer on the other hand, it is shown that pressure losses during pumping of concrete can be successfully predicted. An overview is also provided to discuss the influence of flow rate, pipe diameter and critical SCC properties influencing the pressure during pumping.
Recent developments in evaluating pumping behavior of flowable and self-consolidating concretes
In this paper, recent developments in evaluating pumping behavior of flowable and self-consolidating concrete (SCC) are discussed. First, a brief overview of the underlying physics of pumping of concrete is given to introduce the concepts of friction, flow, hydrodynamic and hydrostatic pressure and to present the concept of the lubrication layer. Various methods to assess the lubrication layer properties are then discussed, including tribology and different visualization techniques for the velocity profile. Using tribology on the one hand, or by combining the rheological properties of the concrete and its constituent mortar and knowing the thickness of the lubrication layer on the other hand, it is shown that pressure losses during pumping of concrete can be successfully predicted. An overview is also provided to discuss the influence of flow rate, pipe diameter and critical SCC properties influencing the pressure during pumping.
Recent developments in evaluating pumping behavior of flowable and self-consolidating concretes
Feys, Dimitri (author) / Khayat, Kamal H. (author)
Journal of Sustainable Cement-Based Materials ; 4 ; 238-251
2015-10-02
14 pages
Article (Journal)
Electronic Resource
English
Semi-flowable self-consolidating concrete and its application
| British Library Online Contents | 2015
Assessment of Thixotropy of Flowable and Self-Consolidating Concrete
| Online Contents | 2003
Assessment of Thixotropy of Flowable and Self-Consolidating Concrete
| British Library Online Contents | 2003
Chemical admixtures for highly flowable concretes
| TIBKAT | 1996
Chemical admixtures for highly flowable concretes
| British Library Conference Proceedings | 1996