CAJ | 학술논문

基于表面自由能理论，采用接触角法测定2种沥青与4种集料的表面自由能参数，分别计算出各种沥青集料体系的粘附功和剥落功，以表征沥青集料体系的粘附性优劣；并采用冻融劈裂试验进行验证。结果表明：石灰岩集料与S K70改性沥青的粘附功最大，剥落功最小；花岗岩集料与SK基质沥青的粘附功最小，剥落功最大。此外，剥落功表征的沥青集料体系的粘附性能与冻融劈裂试验表征的粘附性能基本一致；且沥青集料体系的剥落功更能直观地定量评价沥青集料体系的粘附性能。
기우표면자유능이론，채용접촉각법측정2충력청여4충집료적표면자유능삼수，분별계산출각충력청집료체계적점부공화박락공，이표정력청집료체계적점부성우렬；병채용동융벽렬시험진행험증。결과표명：석회암집료여S K70개성력청적점부공최대，박락공최소；화강암집료여SK기질력청적점부공최소，박락공최대。차외，박락공표정적력청집료체계적점부성능여동융벽렬시험표정적점부성능기본일치；차력청집료체계적박락공경능직관지정량평개력청집료체계적점부성능。
Based on the surface energy theory,surface energy parameters of two kinds of asphalt and four kinds of aggregate were obtained by a static contact angle method,and the adhesive work and the exfoliated work of different asphalt-aggregate systems were calculated to determine whether the adhesion between different asphalt-aggregate systems was good or not.Meanwhile,a freeze-thaw splitting test was used for verification.The results suggest that in a modified asphalt-limestone sys-tem,it has the highest value of adhesive work and the lowest exfoliated work.As for the asphalt-granite system,the results are the opposite compared to the asphalt-limestone system.In addition, the adhesion between different asphalt-aggregate systems characterized by the exfoliated work is con-sistent with the results of the freeze-thaw splitting test;therefore,exfoliated work can characterize the adhesion between different asphalt-aggregate systems more intuitively and quantitatively.