| 摘要 |
PROBLEM TO BE SOLVED: To provide pavement structure excellent in an effect of dispersing a strain of a pavement body in accompaniment to expansion and contraction of a girder, and excellent in durability. SOLUTION: A load support part is provided to support a load between girder plays, and a base layer 4a and a surface layer 4b of the pavement body are formed thereon via a sliding sheet. A reinforcement member resisting against a tensile force is embedded in an inside of the base layer, and a tensile strength sheet 24 is laid between the base layer and the surface layer. The base layer is coated preliminarily by a precoating material containing asphalt as a main component, is laid uniformly with an aggregate having a particle size regulated to get to 10-60% of porosity, and is poured in thereon with a grout comprising a heating type modified asphalt material having high flowability at a high temperature, and curability in a range of 70°C to -10°C. The grout gets tight to the aggregate so as to fill the grout with no clearance. The aggregate is thereby integrated with the grout, and the strain generated in the base layer is satisfactorily dispersed to provide the pavement excellent in the durability. COPYRIGHT: (C)2010,JPO&INPIT
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