Consequences of an adjusted slip layer thickness for the hardened properties of UHPC
- Author
- Jolien Van Der Putten (UGent) , Karel Lesage (UGent) and Geert De Schutter (UGent)
- Organization
- Abstract
- The pumpability of a concrete mixture cannot be described by one “single parameter”. The mixture composition, the pump equipment, the pumping pressure,… these parameters all affect the pumpability of a mixture and the ability to form a lubrication layer. Especially in case of ultra-high performance concrete (UHPC), where an optimal packing density, a high amount of powders and a low water/binder-ratio are necessary, the formation of that layer is not evident. In this research, the particle mobility is improved by adding an excess amount of paste to a reference UHPC-mixture in order to create a slip layer. As the required slip layer thickness of a pumpable UHPC-mixture is still unknown, different values are taken into account, reaching from 1 to 10 mm. The varying thickness influences the concrete properties in hardened state. One can see that for a thicker lubrication layer, the durability properties decrease due to a higher porosity. The compressive strength is more or less the same comparing the different mixtures.
- Keywords
- lubrication layer, water absorption, permeability coefficient, UHPC
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8606062
- MLA
- Van Der Putten, Jolien, et al. “Consequences of an Adjusted Slip Layer Thickness for the Hardened Properties of UHPC.” 14th International Conference on Durability of Building Materials and Components (XIV DBMC), edited by Geert De Schutter et al., RILEM Publications, 2017, pp. 1–8.
- APA
- Van Der Putten, J., Lesage, K., & De Schutter, G. (2017). Consequences of an adjusted slip layer thickness for the hardened properties of UHPC. In G. De Schutter, N. De Belie, A. Janssens, & N. Van den Bossche (Eds.), 14th International Conference on Durability of Building Materials and Components (XIV DBMC) (pp. 1–8). Paris: RILEM Publications.
- Chicago author-date
- Van Der Putten, Jolien, Karel Lesage, and Geert De Schutter. 2017. “Consequences of an Adjusted Slip Layer Thickness for the Hardened Properties of UHPC.” In 14th International Conference on Durability of Building Materials and Components (XIV DBMC), edited by Geert De Schutter, Nele De Belie, Arnold Janssens, and Nathan Van den Bossche, 1–8. Paris: RILEM Publications.
- Chicago author-date (all authors)
- Van Der Putten, Jolien, Karel Lesage, and Geert De Schutter. 2017. “Consequences of an Adjusted Slip Layer Thickness for the Hardened Properties of UHPC.” In 14th International Conference on Durability of Building Materials and Components (XIV DBMC), ed by. Geert De Schutter, Nele De Belie, Arnold Janssens, and Nathan Van den Bossche, 1–8. Paris: RILEM Publications.
- Vancouver
- 1.Van Der Putten J, Lesage K, De Schutter G. Consequences of an adjusted slip layer thickness for the hardened properties of UHPC. In: De Schutter G, De Belie N, Janssens A, Van den Bossche N, editors. 14th International Conference on Durability of Building Materials and Components (XIV DBMC). Paris: RILEM Publications; 2017. p. 1–8.
- IEEE
- [1]J. Van Der Putten, K. Lesage, and G. De Schutter, “Consequences of an adjusted slip layer thickness for the hardened properties of UHPC,” in 14th International Conference on Durability of Building Materials and Components (XIV DBMC), Ghent, 2017, pp. 1–8.
@inproceedings{8606062,
abstract = {{The pumpability of a concrete mixture cannot be described by one “single parameter”. The
mixture composition, the pump equipment, the pumping pressure,… these parameters all affect the
pumpability of a mixture and the ability to form a lubrication layer. Especially in case of ultra-high
performance concrete (UHPC), where an optimal packing density, a high amount of powders and a
low water/binder-ratio are necessary, the formation of that layer is not evident. In this research, the
particle mobility is improved by adding an excess amount of paste to a reference UHPC-mixture in
order to create a slip layer. As the required slip layer thickness of a pumpable UHPC-mixture is still
unknown, different values are taken into account, reaching from 1 to 10 mm. The varying thickness
influences the concrete properties in hardened state. One can see that for a thicker lubrication layer,
the durability properties decrease due to a higher porosity. The compressive strength is more or less
the same comparing the different mixtures.}},
author = {{Van Der Putten, Jolien and Lesage, Karel and De Schutter, Geert}},
booktitle = {{14th International Conference on Durability of Building Materials and Components (XIV DBMC)}},
editor = {{De Schutter, Geert and De Belie, Nele and Janssens, Arnold and Van den Bossche, Nathan}},
isbn = {{9782351581599}},
keywords = {{lubrication layer,water absorption,permeability coefficient,UHPC}},
language = {{eng}},
location = {{Ghent}},
pages = {{1--8}},
publisher = {{RILEM Publications}},
title = {{Consequences of an adjusted slip layer thickness for the hardened properties of UHPC}},
year = {{2017}},
}