Qualitative criteria and thresholds for low noise asphalt mixture design

Resilient and Safe Road Infrastructure

土木建筑工程

Vaitkus, A.^1 ; Andriejauskas, T.^1 ; Graulyte, J.^1 ; Šernas, O.^1 ; Vorobjovas, V.^1 ; Kleiziene, R.^1

Rd. Research Institute, Vilnius Gediminas Technical University, Lithuania^1

关键词: Climate condition;    Degree of compaction;    Design parameters;    Low noise pavements;    Mixture compositions;    Qualitative criteria;    Road traffic noise;    Temperature fluctuation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/356/1/012027/pdf
DOI  :  10.1088/1757-899X/356/1/012027

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Low noise asphalt pavements are cost efficient and cost effective alternative for road traffic noise mitigation comparing with noise barriers, façade insulation and other known noise mitigation measures. However, design of low noise asphalt mixtures strongly depends on climate and traffic peculiarities of different regions. Severe climate regions face problems related with short durability of low noise asphalt mixtures in terms of considerable negative impact of harsh climate conditions (frost-thaw, large temperature fluctuations, hydrological behaviour, etc.) and traffic (traffic loads, traffic volumes, studded tyres, etc.). Thus there is a need to find balance between mechanical and acoustical durability as well as to ensure adequate pavement skid resistance for road safety purposes. Paper presents analysis of the qualitative criteria and design parameters thresholds of low noise asphalt mixtures. Different asphalt mixture composition materials (grading, aggregate, binder, additives, etc.) and relevant asphalt layer properties (air void content, texture, evenness, degree of compaction, etc.) were investigated and assessed according their suitability for durable and effective low noise pavements. Paper concluded with the overview of requirements, qualitative criteria and thresholds for low noise asphalt mixture design for severe climate regions.