CAJ | 학술논문

通过室内车辙试验以及静态蠕变、动态蠕变试验,研究了混合料在特定温度和压力等条件下的变形特性,全面考察了沥青混合料的高温性能,提出宜采用车辙动稳定度、相对变形、静态蠕变劲度和动态蠕变劲度等指标对混合料高温性能进行多指标综合评价;相关分析表明,不同厚度试件(50,70 mm)的车辙动稳定度以及相对变形均表现出较好的线性相关性,试验温度40 ℃的条件下的静态蠕变劲度和动态蠕变劲度之间也表现出较好的线性关系.
통과실내차철시험이급정태연변、동태연변시험,연구료혼합료재특정온도화압력등조건하적변형특성,전면고찰료력청혼합료적고온성능,제출의채용차철동은정도、상대변형、정태연변경도화동태연변경도등지표대혼합료고온성능진행다지표종합평개;상관분석표명,불동후도시건(50,70 mm)적차철동은정도이급상대변형균표현출교호적선성상관성,시험온도40 ℃적조건하적정태연변경도화동태연변경도지간야표현출교호적선성관계.
Based on the indoor wheel track test, static creep test as well as dynamic creep test, deformation characteristics were studied under the specific conditions of temperature, pressure and so on, and high temperature performance of bituminous mixture was comprehensively evaluated. A proposal was put forward that such indices as dynamic stability, relative deformation, static creep stiffness and dynamic creep stiffness should be used to make a multi-indices evaluation of high temperature performance. Analysis of the correlation between these indicators shows that both dynamic stability and relative deformation of samples of different thicknesses(50,70 mm)present a good linear correlation, and there is also an obvious linear relationship between static stiffness and dynamic stiffness at the temperature of 40 ℃.