PURPOSES : The adhesive bonding strength of the grid between asphalt pavements is critical in pavement performance. The study is to compare and evaluate the interlayered bonding strength of asphalt mixture specimens with fiber-glass grid (FG) reinforcement and different tack coating materials based on the test results of the shear bonding test.
METHODS : Asphalt mixtures were molded with FG reinforcement using various tack coating materials namely RSC4 and D/B coat. The adhesive shear-bond strength was measured by inducing a monotonic shear loadnig rate of 5 mm/min at 20℃.
RESULTS : As expected, the asphalt mixture with non-reinforced FG exhibited the highest adhesive shear-bond strength, followed by that of the FG with D/B coating. The ranking order of superiority is as follows: Control (RSC4) > D/B+FG > RSC4+FG.
CONCLUSIONS : The results of this experimental study indicate that FG with RSC4 and D/B tack coats can be successfully used in asphalt concrete overlay construction with superior field performance. Based on the test results and literature review, the field bonding strength should exceed 300kPa in grid reinforced asphalt pavement.

ABSTRACT
1. 서론
    1.1. 연구배경
    1.2. 연구내용
2. 연구방법
    2.1. 그리드 보강 공시체 제작
3. 전단강도에 의한 층간 부착력 평가
    3.1. 시험조건 및 시험해석
4. 전단시험 결과 및 분석
    4.1. 시험결과
    4.2. 통계분석
    4.3. 결과 분석
5. 결론
REFERENCES

• 김남규(군산대학교 공과대학 토목공학과) | Kim Nam Gyu
• 김호열(국토교통부) | Kim Ho Yeol
• 박대욱(군산대학교 공과대학 토목공학과) | Park Dae-Wook 교신저자