유리섬유 보강재를 이용한 재활용 아스팔트 혼합물의 물리적 특성에 관한 연구 A Study on the Physical Properties of Recycled Asphalt Mixtures Using Glass Fiber Reinforcement
pp.27-34
PURPOSES: The objective of this study is to evaluate the physical properties of recycled asphalt mixtures reinforced with glass fiber.
METHODS: Firstly, mixing design was conducted on recycled asphalt mixture for use of 50% recycled aggregate. Various laboratory tests were performed on four types of recycled asphalt mixtures with different glass fiber content to evaluate the physical properties. The laboratory tests include indirect tensile strength test, dynamic modulus test, Hamburg wheel tracking test and tensile-strength ratio to evaluate cracks, rutting and moisture resistance of mixtures.
RESULTS: The indirect tensile strength of fiber reinforced glass increased about 139.4%. As a result of comparing the master curves obtained by the dynamic modulus test, the elasticity was low in the low temperature region and high in the high temperature region when the glass fiber was reinforced. The glass fiber contents of PEGS 0.3%, Micro PPGF 0.1% and Macro PPGF 0.3% showed the highest moisture resistance and rutting resistance.
CONCLUSIONS : The test results show that use of glass fiber reinforcement can increase the resistance to cracking, rutting, and moisture damage of asphalt mixtures. It is also necessary to validate the long-term performance of recycled asphalt mixtures with glass fiber using full scale pavement testing and field trial construction.
1. 서론
2. 유리섬유 보강 아스팔트
2.1. 유리섬유 보강 원리
2.2. 섬유 보강재 특징
3. 시험방법 및 혼합물 조성
3.1. 시험방법
3.2. 혼합물 조성
4. 실내 시험
4.1. 간접인장강도 시험
4.2. 동탄성계수 시험
4.3. 수분저항성(인장강도비) 시험
4.4. 함부르크 휠 트래킹 시험
5. 결론
REFERENCES