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고품질 재활용 아스팔트 혼합물의 현장적용성에 대한 연구

Title
고품질 재활용 아스팔트 혼합물의 현장적용성에 대한 연구
Other Titles
A Study on the Field Application of Superior Recycled Pavement of the Waste Asphalt
Author
천병식
Keywords
Superior recycled asphalt pavement; Modified asphalt rejuvenator; PG Grade asphalt; 고품질재생아스콘; 개질재; PG 등급 아스팔트
Issue Date
2012-02
Publisher
한국지반환경공학회 Korean Geo-Environmental Society
Citation
한국지반환경공학회논문집, 2012, 13(2), P.67-73
Abstract
폐아스콘은 순재료와 첨가제를 섞어 분쇄와 가열을 통하여 재활용될 수 있다. 본 연구에서는 고품질재생아스팔트(SRP)의 질을 향상시키기 위하여 Sasol 왁스와 폴리올레핀 탄성체를 이용하였다. 첨가제로써 중간층 및 표층용은 PG 70-22를 목표로 아스팔트량의 1.5%를 사용하였고, 중교통 표층용은 PG 76-22를 목표로 아스팔트량의 3% 개질제와 혼합물의 0.1%에 해당하는 셀룰로스화이버를 첨가하였다. 두 혼합물은 마샬안정도시험, 간접인장강도시험, 잔류간접인장강도시험, 휠트래킹시험 등을 수행하였다. 시험결과는 KS F 2349와 GR F 4005의 기준을 만족하였으며, 고품질재생아스팔트는 중교통도로의 표층 및 기층재료로 사용이 적합하였다. 현재 약 13,000톤의 고품질재생아스팔트 혼합물이 서울 올림픽 도로에 현장시공 되었다.Asphalt pavement waste can be recycled by crushing and heating methods with additional virgin materials and additives. In this study, a new additive using Sasol wax and Polyolefin elastomer was used for improving the quality of the Superior recycled asphalt pavement(SRP). Additive was added into the recycled mixture by 1.5% and 3% of binder content in order to have PG 70-22 and PG 76-22. Both mixtures were tested by Marshall apparatus, indirect strength testing methods, toughness testing methods, moisture susceptibility testing methods and wheel tracking testing methods. Test results met the standards of KS F 2349 and GR F 4005. Through research, it was found that these special recycled mixtures could be applied for the surface and base course of heavy traffic roads or equivalents. About 13,000 tons of the recycled mixture has been applied on Seoul Olympic road to provide new road to Hangang park for Seoul citizens.
URI
http://www.dbpia.co.kr/Journal/ArticleDetail/NODE01777799
ISSN
1598-0820
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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