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A platform for research: civil engineering, architecture and urbanism
Influence of hydrophobisation on surface free energy of hybrid fiber reinforced ultra-high performance concrete
https://orcid.org/0000-0002-3230-4813
Highlights The content of fibers increases adhesion of the hydrophobic agents on the ultra-high performance concrete (UHPC) surface. The highest hydrophobisation efficiency of the FRUHPC was obtained by a alkyl–alkoxy-silanes. The SFE is nonlinear dependent on the UHPC absorptivity. The strong correlations between the SFE values and the contact angle were formulated. The Neumann and Owens–Wendt methods gave the most reliable SFE results.
Abstract The aim of the research presented in the paper was to evaluate the feasibility of using hydrophobic preparations based on organosilicon compounds for protection treatment on the hybrid fiber reinforced ultra-high performance concrete (FRUHPC) surface. Three polisiloxanes agents were deposited onto the seven types of concretes, with a steel-polypropylene fiber content ranging from 0% to 1%. In this investigation, the surface free energy (SFE) of the coatings was calculated using the Owens–Wendt, Neumann, Wu, and Fowkes methods. In order to examine the contact angle, three measuring liquids were used: distilled water, glycerine and diiodomethane. It has been shown that the Neumann method with one polar and the Owens–Wendt method with a pair of polar liquids gave the most reliable results.
Influence of hydrophobisation on surface free energy of hybrid fiber reinforced ultra-high performance concrete
https://orcid.org/0000-0002-3230-4813
Highlights The content of fibers increases adhesion of the hydrophobic agents on the ultra-high performance concrete (UHPC) surface. The highest hydrophobisation efficiency of the FRUHPC was obtained by a alkyl–alkoxy-silanes. The SFE is nonlinear dependent on the UHPC absorptivity. The strong correlations between the SFE values and the contact angle were formulated. The Neumann and Owens–Wendt methods gave the most reliable SFE results.
Abstract The aim of the research presented in the paper was to evaluate the feasibility of using hydrophobic preparations based on organosilicon compounds for protection treatment on the hybrid fiber reinforced ultra-high performance concrete (FRUHPC) surface. Three polisiloxanes agents were deposited onto the seven types of concretes, with a steel-polypropylene fiber content ranging from 0% to 1%. In this investigation, the surface free energy (SFE) of the coatings was calculated using the Owens–Wendt, Neumann, Wu, and Fowkes methods. In order to examine the contact angle, three measuring liquids were used: distilled water, glycerine and diiodomethane. It has been shown that the Neumann method with one polar and the Owens–Wendt method with a pair of polar liquids gave the most reliable results.
Influence of hydrophobisation on surface free energy of hybrid fiber reinforced ultra-high performance concrete
https://orcid.org/0000-0002-3230-4813
Highlights The content of fibers increases adhesion of the hydrophobic agents on the ultra-high performance concrete (UHPC) surface. The highest hydrophobisation efficiency of the FRUHPC was obtained by a alkyl–alkoxy-silanes. The SFE is nonlinear dependent on the UHPC absorptivity. The strong correlations between the SFE values and the contact angle were formulated. The Neumann and Owens–Wendt methods gave the most reliable SFE results.
Abstract The aim of the research presented in the paper was to evaluate the feasibility of using hydrophobic preparations based on organosilicon compounds for protection treatment on the hybrid fiber reinforced ultra-high performance concrete (FRUHPC) surface. Three polisiloxanes agents were deposited onto the seven types of concretes, with a steel-polypropylene fiber content ranging from 0% to 1%. In this investigation, the surface free energy (SFE) of the coatings was calculated using the Owens–Wendt, Neumann, Wu, and Fowkes methods. In order to examine the contact angle, three measuring liquids were used: distilled water, glycerine and diiodomethane. It has been shown that the Neumann method with one polar and the Owens–Wendt method with a pair of polar liquids gave the most reliable results.
Influence of hydrophobisation on surface free energy of hybrid fiber reinforced ultra-high performance concrete
Barnat-Hunek, Danuta (author) / Smarzewski, Piotr (author)
Construction and Building Materials ; 102 ; 367-377
2015-11-02
11 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2016
Property Assessment of Hybrid Fiber-Reinforced Ultra-High-Performance Concrete
| Springer Verlag | 2017