A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dual-noise-reduction asphalt pavement mixture and design method
The invention relates to a dual-noise-reduction asphalt pavement mixture which comprises 6-8 parts of matrix asphalt or SBS modified asphalt, 0.5-3 parts of a binary elastic noise-reduction particle composite modifier, 92-96 parts of stone and 4-8 parts of mineral powder. The invention also relates to a design method of the dual-noise-reduction asphalt pavement mixture. The design method comprises the following steps: S1, selecting an asphalt label for the corresponding asphalt pavement mixture according to environmental parameters; s2, determining the paving thickness of the asphalt pavement mixture; s3, selecting the nominal maximum particle size according to the pavement thickness of the asphalt pavement mixture; s4, determining mineral aggregate gradation; s5, determining the optimal amount of asphalt; and S6, completing design and preparation of the dual-noise-reduction asphalt mixture. The dual-noise-reduction asphalt pavement mixture disclosed by the invention can effectively reduce noise, greatly improve durability and overcome the defect that a large-gap mixture is easy to drop particles; the resonance effect between the tire and the road surface is reduced, and the dual noise reduction effect is achieved; meanwhile, a testing method of the semi-open grading void ratio is provided, errors are reduced, and the testing accuracy is improved.
本发明涉及一种双重降噪沥青路面混合料，包括基质沥青或SBS改性沥青6～8份、二元弹性降噪粒子复合改性剂0.5～3份、石料92～96份、矿粉4～8份。本发明还涉及一种双重降噪沥青路面混合料的设计方法，包括S1、根据环境参数选择对应沥青路面混合料用沥青标号；S2、确定沥青路面混合料铺装厚度；S3、根据沥青路面混合料铺装厚度选择公称最大粒径；S4、确定矿料级配；S5、确定沥青最佳用量；S6、完成双重降噪沥青混合料的设计及制备。本发明的双重降噪沥青路面混合料可以有效降噪且大大提高耐久性，改善大空隙混合料易掉粒的缺点；减少轮胎与路面之间的共振效应，组成双重降噪的效果；同时提出半开级配空隙率的测试方法，减少误差，增加其测试的精确性。
Dual-noise-reduction asphalt pavement mixture and design method
The invention relates to a dual-noise-reduction asphalt pavement mixture which comprises 6-8 parts of matrix asphalt or SBS modified asphalt, 0.5-3 parts of a binary elastic noise-reduction particle composite modifier, 92-96 parts of stone and 4-8 parts of mineral powder. The invention also relates to a design method of the dual-noise-reduction asphalt pavement mixture. The design method comprises the following steps: S1, selecting an asphalt label for the corresponding asphalt pavement mixture according to environmental parameters; s2, determining the paving thickness of the asphalt pavement mixture; s3, selecting the nominal maximum particle size according to the pavement thickness of the asphalt pavement mixture; s4, determining mineral aggregate gradation; s5, determining the optimal amount of asphalt; and S6, completing design and preparation of the dual-noise-reduction asphalt mixture. The dual-noise-reduction asphalt pavement mixture disclosed by the invention can effectively reduce noise, greatly improve durability and overcome the defect that a large-gap mixture is easy to drop particles; the resonance effect between the tire and the road surface is reduced, and the dual noise reduction effect is achieved; meanwhile, a testing method of the semi-open grading void ratio is provided, errors are reduced, and the testing accuracy is improved.
本发明涉及一种双重降噪沥青路面混合料，包括基质沥青或SBS改性沥青6～8份、二元弹性降噪粒子复合改性剂0.5～3份、石料92～96份、矿粉4～8份。本发明还涉及一种双重降噪沥青路面混合料的设计方法，包括S1、根据环境参数选择对应沥青路面混合料用沥青标号；S2、确定沥青路面混合料铺装厚度；S3、根据沥青路面混合料铺装厚度选择公称最大粒径；S4、确定矿料级配；S5、确定沥青最佳用量；S6、完成双重降噪沥青混合料的设计及制备。本发明的双重降噪沥青路面混合料可以有效降噪且大大提高耐久性，改善大空隙混合料易掉粒的缺点；减少轮胎与路面之间的共振效应，组成双重降噪的效果；同时提出半开级配空隙率的测试方法，减少误差，增加其测试的精确性。
Dual-noise-reduction asphalt pavement mixture and design method
一种双重降噪沥青路面混合料及设计方法
LI HAI (author) / SHI HONGXING (author) / JIA SHAO (author) / LIU HAIQUAN (author) / MENG XICUN (author) / HUO GUANG (author) / LIU SUHUA (author) / LI JUN (author) / LIAN CHAO (author)
2023-12-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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