INVESTIGATION ON ENHANCING FLEXURAL PERFORMANCE OF CFRP STRENGTHENED CONCRETE BEAMS
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): J.C.P.H. GAMAGE , M.R.E.F. ARIYACHANDRA
Abstract: Strengthening of reinforced concrete structures is inevitable to preserve structural integrity and protracted service life due to the effects of numerous elements contained within the natural or artificial environment surrounding it. Carbon Fibre Reinforced Polymer (CFRP) composites have been progressively more utilized for decades as a strengthening material due to its outstanding characteristics such as high strength to weight ratio, reduced weight, excellent resistance to corrosion and environmental degradation and ease of handling during construction which have distinguished it well apart from the other strengthening techniques. However, the ultimate load capacity of CFRP strengthened concrete composites is comparatively lower than CFRP material due to premature debonding which reported as the most frequently observed failure mode in CFRP/concrete composites. In the current study, alternative bonding techniques were investigated to achieve enhanced bond performance by delaying prem
- Publication Date: 29-Aug-2015
- DOI: 10.15224/978-1-63248-074-3-29
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EFFECTS OF HOLE TRANSPORT AND INJECTION LAYERS ON THE EFFICIENCY OF FLEXIBLE ORGANIC LIGHT-EMITTING DIODES
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): CHING-KONG CHAO , FA-TA TSAI , RWEI-CHING CHANG , SHENG-DA CAI
Abstract: The efficiency of organic light-emitting diodes (OLEDs) strongly depends on the mobility of electric holes in the organic materials. To improve the performance of flexible OLEDs, various thicknesses of hole injection layers and hole transporting layers in the flexible OLEDs were studied in this work. The PEDOT:PSS hole injection layer was deposited on the ITO coated PET substrate by spin coating at the first, and then deposited the NPB hole transporting layer, Alq3 emitting layer, and aluminum cathode by thermal evaporation. The OLED component was covered with a PET film and packaged by UV glue in the final. The luminance, chromaticity coordinate, and life time of the flexible OLEDs were tested, where the thickness effects of the PEDOT:PSS and NPB on the OLED performance were also studied. The result showed that the flexible OLED stacked as PET /Al 200 nm /Alq3 100 nm /NPB 40 nm /PEDOT:PSS 130 nm /ITO /PET had the best performance with 2640.7 cd/m2 at 10 V.
- Publication Date: 29-Aug-2015
- DOI: 10.15224/978-1-63248-074-3-30
- Views: 0
- Downloads: 0