High-toughness, ultra-thin friction course for the channel on the Zhuhai artificial island of the Hong Kong-Zhuhai-Macao Bridge
YU Jiangmiao1, CHEN Fuda1, PENG Xinyan2, LIU Guohua3, DENG Ke4, YU Xianshu1, ZHANG Wenfeng5, MO Guangliang5, LU Xue5, CHEN Zhenwen2, XU Tianrao2, LI Junhua5
1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China; 2. Guangzhou Municipal Engineering Maintenance Department, Guangzhou 510030, China; 3. Zhuhai Gree Hong Kong-Zhuhai-Macao Bridge Zhuhai Port Construction Management Co., Ltd., Zhuhai 519000, China; 4. CCCC Highway Consultants Co., Ltd., Beijing 100088, China; 5. China Fortune Connection(Canton) Roadway Technology Co., Ltd., Foshan 528300, China
Abstract：This paper describes a high-toughness, ultra-thin friction course developed to improve the pavement quality and extend the service life of the channel (originally a temporary bridge) for the artificial island in the Hong Kong-Zhuhai-Macao Bridge. The effects of extra loads and the extended operating period on the bridge were investigated experimentally for various binding materials, gradation designs, repair plans for the bridge deck, various bonding interface treatment, and construction quality management techniques. The results show that the high-toughness, ultra-thin friction course coupled with synchronous paving provides thinner pavement thicknesses, much higher mechanical strength, less compaction requirement, and higher construction efficiency. The texture depth (increased by 0.34 mm), friction coefficient (increased by 15.5 BPN), noise (reduced by 3~6 dB), and flatness (improved from 6.5 mm to 1.4 mm) were significantly better than for the original cement concrete bridge pavement. The water sealing ability (< 30 mL/min) and the debonding strength (> 0.7 MPa) reached a good condition. This paving system can also be applied upgrade highway, urban road, bridge, and tunnel surfaces.
虞将苗, 陈富达, 彭馨彦, 刘国华, 邓科, 余贤书, 张文锋, 莫广亮, 卢学, 陈镇文, 徐天尧, 李俊华. 高韧超薄沥青磨耗层在港珠澳大桥珠海人工岛通道上的应用[J]. 清华大学学报（自然科学版）, 2020, 60(1): 48-56.
YU Jiangmiao, CHEN Fuda, PENG Xinyan, LIU Guohua, DENG Ke, YU Xianshu, ZHANG Wenfeng, MO Guangliang, LU Xue, CHEN Zhenwen, XU Tianrao, LI Junhua. High-toughness, ultra-thin friction course for the channel on the Zhuhai artificial island of the Hong Kong-Zhuhai-Macao Bridge. Journal of Tsinghua University(Science and Technology), 2020, 60(1): 48-56.
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2020, Vol. 60 
