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- Title
抗 滑 颗 粒 对 含 砂 雾 封 层 性 能 影 响.
- Authors
田 甜; 蒋 应 军; 张 文 辉; 张 毅; 陈 浙 江
- Abstract
In order to determine the optimum parameters of the anti-slip particles for the sand fog seal, the influence of the type, particle size, gradation and dosage of anti-slip particles on the anti-slip property and durability of the sand fog seal is investigated through accelerated wear test. The results show that after 1×10 5 wear cycles, the British Pendulum Numbers (BPN) of the three types of sand fog seal specimens with basalt sand, natural river sand and emery are reduced by 32.8%, 32.4% and 29.1% respectively, and the mass loss rates are 61.78%, 64.01% and 62.46% respectively. Compared to 0.3-0.6 mm and 1.18-2.36 mm particle sizes, the fog seal specimen with 0.6-1.18 mm emery has the largest BPN and the smallest mass loss rate. Compared with the single particle size of 0.6-1.18 mm, the BPN of the fog seal specimen with 1∶1 of 0.6-1.18 mm and 0.3-0.6 mm emery is the largest, and the mass loss rates of the fog seal specimens with 1∶1, 7∶3 and 9∶1 of 0.6-1.18 mm and 0.3-0.6 mm emery are reduced by 4.83%, 3.54% and 0.39% respectively. When the dosage of emery is 0.6 kg/m2, the specimen abrasion BPN curve lies at the top and the mass loss rate is the smallest. It is recommended to select emery with 7∶3 of 0.6-1.18 mm and 0.3-0.6 mm particle size as the anti-slip particles for sand fog seal and a dosage of 0.6 kg/m2. It is verified that compared to the fog seal specimen without anti-slip particles and the blank specimen without fog seal treatment, the initial BPN of the sand fog seal specimen increases by 69.8% and 35.2% respectively, and the mass loss rate is 9.67% less than that of the fog seal specimens.
- Subjects
ACCELERATED life testing; HIGHWAY engineering; BASALT; PENDULUMS; DRUG dosage; FOG; SAND
- Publication
Journal of Dalian University of Technology / Dalian Ligong Daxue Xuebao, 2022, Vol 62, Issue 3, p272
- ISSN
1000-8608
- Publication type
Article
- DOI
10.7511/dllgxb202203007