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Polyurea Great Wall Beijing-Shanghai High Speed Railway Polyurea Protection Project

Polyurea Great Wall Beijing-Shanghai High Speed Railway Polyurea Protection Project
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This paper presented the polyurea protective project of Beijing-Shanghai High Speed Railway. It also reviewed the polyurea history in China, introduced research and development of polyurea in Qingdao Technological University. The analysis and discussion on the application problems exposed in the Beijing-Shanghai High Speed Railway project were performed in this paper. 

Product Number: 41211-658-SG
Author: Huang Weibo, Liu Xudong, Lu Ping, Ma Xueqiang
Publication Date: 2011
Industry: Coatings
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$20.00
$20.00

This paper presented the polyurea protective project of Beijing-Shanghai High Speed Railway. It also reviewed the polyurea history in China, introduced research and development of polyurea in Qingdao Technological University. The analysis and discussion on the application problems exposed in the Beijing-Shanghai High Speed Railway project were performed in this paper. It proposed a polyurethane based all-weather surface preparation system for Beijing-Shanghai High Speed Railway polyurea project and settled the long-term problem confusing Chinese polyurea industry. The comprehensive performance of surface preparation systems for Beijing-Shanghai High Speed Railway polyurea project in jobsite was also investigated. The pull-off test, tack free time and visual inspection were employed to determine the adhesion and coverage effect of the bug hole on shot blasted concrete surface. The results indicate that: polyurethane based system performed an excellent comprehensive performance better than epoxy-based system both in adhesion and in elimination of pinhole for upcoming polyurea application. This polyurea project goes forward well even in both cold and dry season in the north, and hot and moist season in the south attributed to this novel polyurethane-based system.

This paper presented the polyurea protective project of Beijing-Shanghai High Speed Railway. It also reviewed the polyurea history in China, introduced research and development of polyurea in Qingdao Technological University. The analysis and discussion on the application problems exposed in the Beijing-Shanghai High Speed Railway project were performed in this paper. It proposed a polyurethane based all-weather surface preparation system for Beijing-Shanghai High Speed Railway polyurea project and settled the long-term problem confusing Chinese polyurea industry. The comprehensive performance of surface preparation systems for Beijing-Shanghai High Speed Railway polyurea project in jobsite was also investigated. The pull-off test, tack free time and visual inspection were employed to determine the adhesion and coverage effect of the bug hole on shot blasted concrete surface. The results indicate that: polyurethane based system performed an excellent comprehensive performance better than epoxy-based system both in adhesion and in elimination of pinhole for upcoming polyurea application. This polyurea project goes forward well even in both cold and dry season in the north, and hot and moist season in the south attributed to this novel polyurethane-based system.

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