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Research on Mixture Performance and Application Technology of Micro-surfacing

Author: LiuWeiLiang
Tutor: ZhengNanXiang
School: Chang'an University
Course: Road and Railway Engineering
Keywords: Asphalt pavement Micro-surfacing Noise reduction technology Absorption coefficient Preventive Maintenance
CLC: U414
Type: Master's thesis
Year: 2011
Downloads: 105
Quote: 2
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Abstract


Micro-surfacing the road in the course of their car inside and outside noise is significantly bigger than ordinary asphalt pavement on the road and passengers around and had a serious impact. Therefore, the micro-surfacing the road noise and noise reduction technology to study the mechanism has important significance. Around the micro-surfacing technology, emulsified asphalt mechanism was analyzed ; through the emulsified asphalt residue on evaporation test indicators , on the compatibility of emulsified asphalt were studied . For micro-surfacing road noise a big problem, with the current level adjustments applied standing wave tube test its sound absorption coefficient , the results show that mixes acoustic performance has improved significantly . Applications standing wave tube method mixing different amounts of rubber powder and fiber micro-surfacing mix acoustic system can be tested , analyzed the rubber powder and fiber content on the acoustic properties of the mixture , the results showed that with the rubber powder and fiber content increases, the absorption coefficient increases mixture , acoustic performance improved significantly. Meanwhile, the rubber powder micro-surfacing and fiber micro-surfacing mixture road performance was tested , made ??the right dosage . For preventive maintenance , the first micro-surfacing technology for the scope of analysis, and proposed the implementation of micro-surfacing of the road pavement before the target level ; life- cycle cost analysis method to an example of the method for determining the timing of conservation .

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CLC: > Transportation > Road transport > Road works > Road construction materials
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