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为研究橡胶沥青开级配沥青混合料(AROGFC-10)的路用性能及降噪效果,采用室内马歇尔成型制件,进行橡胶沥青开级配沥青混合料配合比设计,从而验证其路用性能。通过使用室内驻波管法测得其吸声系数,分析AROGFC-10降噪效果。试验结果表明:AROGFC-10各项体积指标均符合规范要求,具有良好的路用性能;由于其空隙率较大,使用驻波管法测得吸声系数在1 000~1 600Hz之间最大,具有较好的降低交通噪声效果。
In order to study the road performance and noise reduction effect of Asphalt Mixture (AROGFC-10) with rubber asphalt, an interior Marshall molded part was used to design the mix proportion of Asphalt Mixture with rubber-bitumen open grade to verify its road performance . Through the use of indoor standing wave tube method to measure the sound absorption coefficient, analysis of AROGFC-10 noise reduction effect. The test results show that: AROGFC-10 volume indicators are in line with regulatory requirements, has good road performance; due to its larger porosity, the use of standing wave tube method measured sound absorption coefficient between 1 000 ~ 1 600Hz maximum, Has better traffic noise reduction.