CAJ | 학술논문

为改善橡胶沥青混合料路用性能，分别掺加两种矿物纤维，通过马歇尔试验、冻融劈裂试验、车辙试验、恒定高度重复剪切试验（ RSCH）和低温弯曲试验研究矿物纤维改性橡胶沥青混合料水稳定性及高、低温性能。结果表明：矿物纤维使得沥青混合料的最佳油石比变大，空隙率变小；掺量较小（≤0.1％）时，橡胶沥青混合料各方面性能均有所提高；矿物纤维掺量＞0.1％时，S纤维导致橡胶沥青混合料的高、低温性能和水稳定性下降。
위개선상효력청혼합료로용성능，분별참가량충광물섬유，통과마헐이시험、동융벽렬시험、차철시험、항정고도중복전절시험（ RSCH）화저온만곡시험연구광물섬유개성상효력청혼합료수은정성급고、저온성능。결과표명：광물섬유사득력청혼합료적최가유석비변대，공극솔변소；참량교소（≤0.1％）시，상효력청혼합료각방면성능균유소제고；광물섬유참량＞0.1％시，S섬유도치상효력청혼합료적고、저온성능화수은정성하강。
In order to improve the road performance , two different kinds of mineral fibers were mixed into rubber asphalt mixture .The Marshall test , freeze-thaw splitting test , rutting test , repeat-ed shear test ( constant height ) ( RSCH ) and cold bending test were conducted to assess the road performance .It was found that the optimum proportion of asphalt mixture were accreted , but the voids were reduced with the mineral fiber mixed in .The mixture that contains ≤0.1% mineral fi-bers show the best road performance .When the mixture contains more fibers (>0.1%) , its high and low temperature properties and water stability were decreased .