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moisture-resistance
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4-tert-butyl pyridine additive for moisture-resistant wide bandgap perovskite solar cells
, Article Optical Materials ; Volume 123 , 2022 ; 09253467 (ISSN) ; Azizollah Ganji, B ; Taghavinia, N ; Sharif University of Technology
Elsevier B.V
2022
Abstract
Perovskite solar cells fabrication process need inert or low humidity atmospheres. While highly efficient perovskite solar cells to overcome the photovoltaic marketing should be achieved stability at any environmental conditions. At high humidity, water molecules react with the perovskite layer and increase the degradation rate, leading to a drastic decrease in device performance and perovskite crystallinity. In this work, the effect of environmental humidity on photophysical parameters of wide bandgap, (WBG) perovskite layer and solar cells stability is systematically investigated and tBP is proposed as an additive in perovskite precursor to increase the moisture resistance and improve the...
Rutting and moisture resistance evaluation of polyethylene wax–modified asphalt mixtures
, Article Petroleum Science and Technology ; Volume 34, Issue 17-18 , 2016 , Pages 1568-1573 ; 10916466 (ISSN) ; Darbandi Olia, A. D ; Akbari Nasrekani, A ; Asadi, P ; Sharif University of Technology
Taylor and Francis Inc
Abstract
One of the methods newly introduced in pavement technology to address environmental concerns and reduce total gas emission is warm mix asphalt (WMA) technology. In this study, polyethylene wax is used to produce WMA mixtures. Although this technology has several positive features, moisture and rutting resistance of WMA mixtures are always questionable. To evaluate moisture and rutting resistance of polyethylene-modified mixtures, indirect tensile strength and dynamic creep tests were used, respectively. Results indicated that polyethylene has positive effect at low compaction temperature on moisture resistance, and also has negative effect on rutting resistance
Improving fracture and moisture resistance of cold mix asphalt (CMA) using crumb rubber and cement
, Article Road Materials and Pavement Design ; 2020 ; Motamed, A ; Imaninasab, R ; Sharif University of Technology
Taylor and Francis Ltd
2020
Abstract
Due to environmental and economic advantages, cold mix asphalt (CMA) can be considered as a good alternative to conventional hot mix asphalt (HMA). Nevertheless, it has inferior performance compared to HMA, so that the application of CMA is not recommended in the surface layer of pavements subjected to high traffic volume and/or regions with very cold or hot climate. Considering the high potential of distress occurring in the CMAs, this research is aimed at investigating the effect of crumb rubber (CR) on fracture and moisture damage resistance of the CMAs. Different CR percentages were applied through two different modification methods and, then by means of Semi-Circular Bending (SCB) test,...
Improving fracture and moisture resistance of cold mix asphalt (CMA) using crumb rubber and cement
, Article Road Materials and Pavement Design ; Volume 23, Issue 3 , 2022 , Pages 527-545 ; 14680629 (ISSN) ; Motamed, A ; Imaninasab, R ; Sharif University of Technology
Taylor and Francis Ltd
2022
Abstract
Due to environmental and economic advantages, cold mix asphalt (CMA) can be considered as a good alternative to conventional hot mix asphalt (HMA). Nevertheless, it has inferior performance compared to HMA, so that the application of CMA is not recommended in the surface layer of pavements subjected to high traffic volume and/or regions with very cold or hot climate. Considering the high potential of distress occurring in the CMAs, this research is aimed at investigating the effect of crumb rubber (CR) on fracture and moisture damage resistance of the CMAs. Different CR percentages were applied through two different modification methods and, then by means of Semi-Circular Bending (SCB) test,...