아스파민을 사용한 중온아스팔트혼합물의 실험적 평가와 포장설계 비교평가 = An Experimental Evaluation and Comparative Evaluation on Pavement Design of Warm-Mix Asphalt Mixture Using Aspha-min

다국어 초록 (Multilingual Abstract)

Warm-Mix Asphalt(WMA) mixtures, which meet environmental protection and have high energy efficiency, are emerging as an alternative to hot-mix asphalt mixtures. The objective of this study is to evaluate WMA made with Aspha-min in the laboratory and to compare the design results accomplished by new Mechanistic-Empirical Pavement Design Guide(MEPDG) with control mixture. An asphalt mixture with a nominal maximum size of 12.5mm and PG64-28 binder was used. Resilient modulus tests for a control mixture and WMA with 0.3% and 0.5% of Aspha-min were conducted. The results obtained by MEPDG after inputting the test output into the design indicated that the predicted rut depth of WMA using Aspha-min was much lower than that of control mixture, and showed that WMA was more resistant to rutting than control mixture.

국문 초록 (Abstract)

환경보호에 부응하고 고에너지효율성을 갖춘 중온아스팔트혼합물이 가열아스팔트혼합물의 대안으로 부각되고 있다. 본 연구의 목적은 아스파민을 혼합하여 제조한 중온아스팔트혼합물을 실험적으로 평가하고, 역학적-경험적 포장설계법인 MEPDG를 이용하여 설계한 결과를 일반아스팔트혼합물 설계와 비교하는 것이다. 실험재료는 최대공칭치수 12.5mm인 골재와 PG64-28바인더가 사용되었으며, 기존 혼합물, 0.3%와 0.5%의 아스파민을 혼합한 중온아스팔트혼합물에 대한 회복탄성계수실험이 실시되었다. 실험결과를MEPDG 설계의 입력변수로 하여 분석한 결과, 아스파민을 사용한 중온아스팔트혼합물의 소성변형량이 일반혼합물에 비해 훨씬 적어소성변형에 대한 저항성이 향상됨을 알 수 있었다.

참고문헌 (Reference)

1 FHWA, "Warm-Mix Asphalt : European Practice" NCHRP Report 2008

2 FHWA, "Warm Mix Asphalt Technologies and Research" 2007

3 Schroer J, "Warm Mix Asphalt - Missouri's Experience" MoDOT Research Report 2006

4 Jones,W, "Warm Mix Asphalt - A STATE-OF-THE-ART Review"

5 Von Devivere,M, "Warm Asphalt Mixers by Adding a Synthetic Zeolite" World Road Association 121-130, 2003

6 Prowell, B.D, "Field Performance of Warm-Mix Asphalt at the NCAT Test Track" 2007

7 FLDOT, "FLDOT's Experience with Warm Mix Asphalt" FLDOT Research Report 2009

8 Hurley, G.C., "Evaluation of Potential Processes for Use in Warm Mix Asphalt" 1 (1): 41-90, 2006

9 McKeon,B, "Aspha-min in Warm Asphalt Mixes" 67-74, 2006

10 Wasiuddin, N.M., "A Comparative Laboratory Study of Sasobit and Aspha-min in Warm Mix Asphalt" 2007