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Superhydrophobic coatings on Portland cement concrete surfaces
HighlightsPortland cement concrete (PCC) surfaces were coated with low surface energy materials.Layer-by-layer (LBL) deposition technique was utilized for coating the PCC substrates.The coated PCC substrates reached high levels of hydrophobicity (water-repellency).Effect of concrete surface texture was studied on the skid resistance of coated concrete.Turf drag surface texture greatly enhanced the skid resistance of superhydrophobic PCC.
AbstractThe objective of this study was to synthesize, characterize and evaluate the nanomaterials-based superhydrophobic (super water-repellent) coatings on Portland cement concrete (PCC) surfaces. These coatings are synthesized with nanomaterials such as polytetrafluoroethylene (PTFE), polyether ether ketone (PEEK) and silanized diatomaceous earth (DE). Using layer-by-layer (LBL) deposition technique, each coating type was deposited at four different spray durations. The water-repellency of the coated surfaces were characterized by measuring static water contact angles (WCAs). These measurements were evaluated through a statistical design-based experimental test program which revealed that the spray duration and coating type are significant variables. A skid-resistant coating composed of PTFE and PEEK was utilized to evaluate the impact of superhydrophobic coatings on pavement skid resistance.
Superhydrophobic coatings on Portland cement concrete surfaces
HighlightsPortland cement concrete (PCC) surfaces were coated with low surface energy materials.Layer-by-layer (LBL) deposition technique was utilized for coating the PCC substrates.The coated PCC substrates reached high levels of hydrophobicity (water-repellency).Effect of concrete surface texture was studied on the skid resistance of coated concrete.Turf drag surface texture greatly enhanced the skid resistance of superhydrophobic PCC.
AbstractThe objective of this study was to synthesize, characterize and evaluate the nanomaterials-based superhydrophobic (super water-repellent) coatings on Portland cement concrete (PCC) surfaces. These coatings are synthesized with nanomaterials such as polytetrafluoroethylene (PTFE), polyether ether ketone (PEEK) and silanized diatomaceous earth (DE). Using layer-by-layer (LBL) deposition technique, each coating type was deposited at four different spray durations. The water-repellency of the coated surfaces were characterized by measuring static water contact angles (WCAs). These measurements were evaluated through a statistical design-based experimental test program which revealed that the spray duration and coating type are significant variables. A skid-resistant coating composed of PTFE and PEEK was utilized to evaluate the impact of superhydrophobic coatings on pavement skid resistance.
Superhydrophobic coatings on Portland cement concrete surfaces
Arabzadeh, Ali (Autor:in) / Ceylan, Halil (Autor:in) / Kim, Sunghwan (Autor:in) / Gopalakrishnan, Kasthurirangan (Autor:in) / Sassani, Alireza (Autor:in) / Sundararajan, Sriram (Autor:in) / Taylor, Peter C. (Autor:in)
Construction and Building Materials ; 141 ; 393-401
02.03.2017
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Superhydrophobic coatings on Portland cement concrete surfaces
British Library Online Contents | 2017
|Superhydrophobic coatings on Portland cement concrete surfaces
Elsevier | 2017
|Superhydrophobic coatings on Portland cement concrete surfaces
Online Contents | 2017
|Superhydrophobic coatings on Portland cement concrete surfaces
British Library Online Contents | 2017
|Superhydrophobic coatings on Portland cement concrete surfaces
British Library Online Contents | 2017
|