CAJ | 학술논문

用由马歇尔设计法得到AC‐13与AC‐20的沥青混合料，搅拌后将混合料依次通过孔径为16 mm、13．2 mm、4．75 mm的方孔筛进行筛分；对筛分得到的四档沥青混合料按照一定比例进行重新分配得到新的AC‐13（n）与AC‐20（n）．通过燃烧法试验测定AC‐13（n）与AC‐20（n）的沥青含量及其矿料级配曲线．分别对比AC‐13（n）、AC‐20（n）与AC‐13、AC‐20的沥青含量和矿料级配曲线变化情况，结果表明：通过对热拌沥青混合料筛分得到的沥青混合料，在沥青含量和矿料级配曲线方面均符合规范规定的范围，且偏离最初的设计很小，因此，热拌沥青混合料的筛分是可行的．
용유마헐이설계법득도AC‐13여AC‐20적력청혼합료，교반후장혼합료의차통과공경위16 mm、13．2 mm、4．75 mm적방공사진행사분；대사분득도적사당력청혼합료안조일정비례진행중신분배득도신적AC‐13（n）여AC‐20（n）．통과연소법시험측정AC‐13（n）여AC‐20（n）적력청함량급기광료급배곡선．분별대비AC‐13（n）、AC‐20（n）여AC‐13、AC‐20적력청함량화광료급배곡선변화정황，결과표명：통과대열반력청혼합료사분득도적력청혼합료，재력청함량화광료급배곡선방면균부합규범규정적범위，차편리최초적설계흔소，인차，열반력청혼합료적사분시가행적．
Two HMAs ,i .e .,AC‐13 and AC‐20 were prepared by Marshall method .They were mixed together and sieved by different size sieves ,i .e .,16 mm ,13 .2 mm and 4 .75 mm so that four sieved hot mix asphalt mixtures were produced .Reassigned those four sieved hot mix asphalt mixtures and two new HMAs ,namely AC‐13(n) and AC‐20(n) were obtained .By asphalt burner oven ,AC‐13(n) and AC‐20(n) were burned for the asphalt content and aggregate gradation testing .The testing result shows that ,from hot‐mix asphalt bitumen obtained by sieving mix ,asphalt content and aggregate gra‐datin curves are in line with the range of specification for the two new HMAs (i .e .obtained HMAs by sieving) ,the aggregate gradations still match respective limited of specification ,and the asphalt con‐tents have very small change compared with those designed by Marshall method;so it implies that the hot‐mix asphalt screening is feasible .