EFFECT OF PRIMARY FEATURES OF AGGREGATES ON THE BEHAVIOUR OF ASPHALTS - PART B: FINE CONSTITUENT FORMATION FROM SANDS AS A RESULT OF DYNAMIC STRESS
| 项目名称： | EFFECT OF PRIMARY FEATURES OF AGGREGATES ON THE BEHAVIOUR OF ASPHALTS - PART B: FINE CONSTITUENT FORMATION FROM SANDS AS A RESULT OF DYNAMIC STRESS |
| 摘要： | SO-CALLED "HEAT DAMAGE" TO BITUMINOUS SURFACINGS FOLLOWING THE HOT SUMMER OF 1976 LED TO NUMEROUS STUDIES ON CORES AND SAMPLES TAKEN FROM VARIOUS PARTS OF THE ROAD (CRAWLER LANES, TRAFFIC LIGHTS, BUS STOPS, ETC). THESE SHOWED THAT LATERAL DISPLACEMENT OCCURRED AS A RESULT OF STRONG SHEARING FORCES (E.G. ACCELERATION FORCES) OR INCREASED STRESS ON THE ROAD STRUCTURE CAUSED BY THE GREATER NUMBER OF PARKED VEHICLES. THE CAUSES OF THESE UNDESIRABLE DEFORMATIONS ARE COMPLEX. A MAIN REASON IS PROBABLY THE TRAFFIC-INDUCED INCREASE IN BITUMINOUS MORTAR THROUGH THE REPRODUCTION OF FINE CONSTITUENTS (FILLER AND SAND) FROM SAND, CHIPPINGS AND REFINED CHIPPINGS. FACTORS INFLUENCING THIS PROCESS ARE TO BE DETERMINED AND THEIR MAGNITUDE ESTIMATED. BITUMEN-BOUND AND UNBOUND MIXTURES AND INDIVIDUAL FRACTIONS OF SAND ARE TO BE EXAMINED IN A PULSATOR WHICH SIMULATES THE FREQUENCY AND FORCE OF LORRY TRAFFIC WHICH IS MAINLY RESPONSIBLE FOR THE STRESS ON THE ROAD. |
| 状态： | Active |
| 资助组织： | BUNDESMINISTER FUER VERKEHR (FEDERAL MINISTER OF TRANSPORT) |
| 项目负责人： | - |
| 执行机构： | LANDESGEWERBEANSTALT BAYERN (BAVARIAN TRADE INSTITUTE) |
| 开始时间： | 19780500 |
| 预计完成日期： | 19800500 |
| 主题领域： | Research；I31: Bituminous Binders and Materials；I36: Aggregates |
相关文献
- EFFECT OF PRIMARY FEATURES OF AGGREGATES ON THE BEHAVIOUR OF ASPHALTS; PART A: FORMATION OF THE FINE CONSTITUENTS OF CHIPPINGS AS A RESULT OF DYNAMIC STRESS AND CONSEQUENCES FOR RHEOLOGICAL BEHAVIOUR
- EVALUATION OF RESEARCH INTO THE STRENGTH REQUIREMENTS OF AGGREGATES FOR ROAD ENGINEERING
- STUDIES TO DETERMINE STIFFNESS AND DEFORMATION DATA FOR UNBOUND AGGREGATES FOR THE DESIGN OF ROAD STRUCTURES
- SULPHUR ASPHALT
- Characterize Dynamic Dilemma Zone and Minimize its Effect at Signalized Intersections
- DETERMINATION OF THE EFFECTS OF AGGREGATES ON ASPHALT BEHAVIOUR. PART C: SHEAR PARAMETERS, DYNAMIC SHEAR MODELS
检索历史
应用推荐
