논문 상세보기
pp.77-86
PURPOSES : This paper presents a quality evaluation of Korean foamed asphalt, which uses the maximum expansion ratio and half-life method. The maximum expansion ratio and half-life method are used to determine the optimum water content to produce a foamed asphalt mixture. The foamed asphalt mixture according to determine an optimum water content with this method; the mixture quality was compared with hot mix asphalt mixture.
METHODS : For the foamed asphalt mixed design, the water content was determined in addition to the Marshall mixing design method. The water content was determined using the ratio of the maximum to minimum volume and the time for the volume to decrease to half of the maximum volume. We conducted stability, indirect tensile strength, tensile strength ratio, dynamic immersion, and absorption rate tests to compare the foamed and hot mixed asphalt mixtures. RESULTS : The foam asphalt mixture exhibited less performance reduction due to temperature change than the hot mixed asphalt mixture. Most of the two mixture types exhibited similar performance. In addition, both mixtures should use an anti-stripping agent to improve water resistance.
CONCLUSIONS : As a result of the laboratory test, the foamed asphalt mixture was able to ensure a similar performance to the hot-mixed asphalt mixture.
1. 서론
2. 기포 아스팔트 공법
2.1. 기포 아스팔트 공법 개요
2.2. 기포 아스팔트 발생 장비
3. 기포 아스팔트 혼합물 배합설계
3.1. 배합설계 과정
3.2. 최적 수분 함량 결정
4. 시험방법
4.1. 온도별 다짐도 비교
4.2. 간접인장강도 시험
4.3. 인장강도비(TSR) 시험
4.4. 박리저항성 시험
4.5. 수분 흡수율 시험
5. 결과분석
5.1. 온도별 다짐도 비교 결과
5.2. 간접인장강도 시험 결과
5.3. 수분저항성 시험 결과
5.4. 박리저항성 시험 결과
5.5. 수분 흡수율 시험 결과
6. 결론
REFERENCES
