Journal article
Impact of nanoclay and carbon microfiber in combating the deterioration of asphalt concrete by non-chloride deicers
Construction & building materials, Vol.160, pp.514-525
01/30/2018
Handle:
https://hdl.handle.net/2376/119323
Abstract
•The stripping risk of asphalt concrete was assessed in presence of four non-chloride deicers.•The incorporation of nanoclay (0.6–1.8% by mass of bitumen) produced a notably improved stripping resistance.•The addition of carbon microfiber (1% by mass of bitumen) increased moisture susceptibility.•The impact of non-chloride deicers on asphalt mastic was discussed based on their hydrophilic-lipophilic properties.
This preliminary laboratory research aims to explore the impact of nanoclay and carbon microfiber in combating the deterioration of asphalt concrete by non-chloride deicers. Modified boiling water test, electrochemical impedance spectroscopy (EIS) and contact angle test were employed to investigate the effects of nanoclay and carbon microfiber on asphalt concrete in the presence of four non-chloride deicers, namely, dipotassium succinate, potassium formate, potassium propionate and potassium acetate. The results indicated that the incorporation of small amount of nanoclay in asphalt concrete produced a notably improved stripping resistance and reduced moisture susceptibility, while the addition of carbon microfiber increased moisture susceptibility. The deterioration effect of the four non-chloride deicers on asphalt mastic was discussed based on their molecule’s hydrophilic-lipophilic properties.
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Details
- Title
- Impact of nanoclay and carbon microfiber in combating the deterioration of asphalt concrete by non-chloride deicers
- Creators
- Zhengxian YangYan ZhangXianming Shi
- Publication Details
- Construction & building materials, Vol.160, pp.514-525
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900612855101842
- Language
- English
- Resource Type
- Journal article