The repair of manhole raise has been caused much construction times and disruption of traffic flow, serious environmental pollution from crushed construction wastes, and budget waste due to the repeated repair construction works. In order to overcome such problems, we have developed the new manhole repairing composite structures by using a glass fiber-reinforced polymer (GFRP) pipe, which can raise manhole to the regular height of the overlayed road pavement with rapid construction and minimum traffic jams. This environmental-friendly technology is method completed by the methyl methacrylate monomer (MMA) double wide flanged GFRP pipe composite structures in order to raise manhole to the regular height. In this paper, two kinds of the compressive strength tests of MMA mortar composites were conducted and evaluated by a general compressive strength test, and compressive strength test after freezing-thawing resistance test. It was found that this MMA mortar composites will be used for the application of the double wide flanged GFRP pipe composite structures.

1. INTRODUCTION
2. MATERIAL TEST
3. STRUCTURAL ANALYSIS
4. MEMBER DESIGN AND FABRICATION
5. CONCLUSIONS
ACKNOWLEDGMENT
References

• Ji, Hyo-Seon(Associate Professor, Department of Civil & Railroad Engineering, Daewon University College) | 지효선 Corresponding author
• El-Badry Mamdouh(Professor, Department of Civil Engineering, University of Calgary)