논문 상세보기

도로포장 형식별 부착식 도로표지병의 성능 평가 연구 KCI 등재

Performance Evaluation of Adhesive Road Studs for Different Pavement Types

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/385375
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
한국도로학회논문집 (International journal of highway engineering)
한국도로학회 (Korean Society of Road Engineers)
초록

PURPOSES: The objective of this study is to evaluate the shear and tensile strength properties of adhesive road studs in asphalt and concrete pavements.
METHODS: The 300 mm×300 mm×50 mm rectangular specimens were fabricated using asphalt and concrete mixture for installation of road studs. Four 140-mm-radius circular areas were milled on each specimen with depth of 5 mm to install the adhesive road studs. About 100 g of thermal melting adhesive was applied on the milled area, and then the road stud was bonded onto the surface of the asphalt and concrete mixture. Direct shear testing was conducted at a speed of 5 mm/min on the interface between road stud and asphalt and concrete materials. Tensile strength testing was also conducted on the prepared specimens by applying load with increase of 50 kPa per second. These tests were performed not only in dry condition but also in wet condition to determine the effect of moisture on the shear and tensile strengths.
RESULTS : According to the shear testing results, the average shear strength of asphalt samples in dry and wet conditions are 0.509 and 0.234 MPa, respectively. From this testing, the shear strength of wet sample was found to be decreased by 50% with respect to that of the dry sample. Similar trends can be observed on the concrete samples. The average tensile strength of asphalt samples was 0.187 MPa at 1.5 mm of displacement in dry condition. The concrete sample has a 0.222 MPa average tensile strength, which is slightly higher than that of the asphalt sample because of the rough surface characteristics of the concrete sample.
CONCLUSIONS: It is determined from this study that the shear and tensile strengths of road stud bonded on the surface of asphalt mixture are slightly lower than those on concrete samples. Regardless of the pavement type, the wet conditioning of the sample can decrease the shear and tensile strength by 50% those of the dry sample. In the future, the quality improvement of adhesive and increase of specific surface area should be considered to improve the bonding property between road stud and pavement surface.

목차
ABSTRACT
1. 서론
2. 도로표지병
3. 접착제
4. 시편제작
5. 전단시험 절차
6. 인장시험 절차
7. 시험결과
8. 결론
REFERENCES
저자
  • 박기수(한국건설기술연구원 인프라안전연구본부) | Park Ki Soo
  • 박원일(한국건설기술연구원 연천SOC실증센터추진단/서울대학교 건설환경공학부) | Park Won Il
  • 진민수(한국건설기술연구원 연천SOC실증센터추진단) | Jin Min Soo
  • 이석기(한국건설기술연구원 연천SOC실증센터추진단) | Lee Suk Ki
  • 박희문(한국건설기술연구원 인프라안전연구본부) | Park Hee Mun 교신저자