CAJ | 학술논문

为了对热再生沥青混合料的动态特性做进一步的研究，采用简单性能试验机（SPT）采用不同温度和荷载频率分别测试了热再生沥青混合料和普通热拌沥青混合料在动态模量与相位角。在分析以上实验数据的基础上进一步分析了荷载频率、试验温度对沥青混合料动态特性的影响。依据时一温等效原理，借助西格摩德（Sigmoidal）函数通过拟合最终确定了两种沥青混合料动态模量主曲线和位移因子。结果表明热再生沥青混合料其动态模量与普通沥青热拌混合料基本相当，其力学性能得到一定程度的恢复。
위료대열재생력청혼합료적동태특성주진일보적연구，채용간단성능시험궤（SPT）채용불동온도화하재빈솔분별측시료열재생력청혼합료화보통열반력청혼합료재동태모량여상위각。재분석이상실험수거적기출상진일보분석료하재빈솔、시험온도대력청혼합료동태특성적영향。의거시일온등효원리，차조서격마덕（Sigmoidal）함수통과의합최종학정료량충력청혼합료동태모량주곡선화위이인자。결과표명열재생력청혼합료기동태모량여보통력청열반혼합료기본상당，기역학성능득도일정정도적회복。
In order to study the dynamic characteristics of hot-recycled asphalt mixture,a simple performance test machine(SPT)was used to test dynamic modulus and phase angles for recycled asphalt mix and ordinary HMA mixture,and by these experimental data,the influences of load frequency and tem-perature on mixture dynamic parameters were studied systematically.According to time-temperature super-position principle and nonlinear-square fitting method,the dynamic modulus maser curves of two kinds of asphalt mixtures were determined,and results indicate that the dynamic modulus of recycled asphalt is roughly equal to the ordinary hot mix asphalt mixture,the mechanical properties were recovered in a cer-tain degree.