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As a traffic safety measure, Porous concrete (POC) pavement is adopted around the entrances of the Shorenjigawa tunnel in Yodogawasagan-Route in Hanshin Expressway. However, it was the first time that POC pavement was used for such a heavy traffic route. It is required to have sufficient performances such as strength, durability and skid resistance. Comparative studies that changes mix proportion included water-binder ratio, aggregates types and void content were conducted. The results indicate all the mixes of POC prepared for this study satisfies performance for highway. Structure details of the POC pavement were designed and checked by FEM (finite element method) analysis. Construction method was proposed based on the results of the test construction. Quality of POC pavement was verified through quality tests during construction. 阪神高速道路淀川左岸線正蓮寺川トンネルではトンネル坑口から最初のカーブまでは路面の雨水の滞水を排除しカーブ区間のスリップを防止する目的でポーラスコンクリート(POC舗装を採用した POC舗装は大型車の多い高速道路の本線部において12,000m2の大規模な施工実績はなく重交通に対しての十分な強度と耐久性および路面のすべり抵抗性等が要求されるPOC舗装の包括的な検討としてPOC舗装の照査すべき性能を検討し粗骨材種類水結合比および空隙率などを変化させて詳細な配合検討を行い強度耐久性乾燥収縮骨材の飛散抵抗滑り抵抗など要求される性能を検証したさらにトンネル内に適用するPOC舗装の構造詳細および試験施工を踏まえて施工法を提案し実施工を行い品質および出来形を検証した

STUDY OF MIX PROPORTION AND QUALITY CONTROL OF POROUS CONCRETE PAVEMENT USED ON URBAN EXPRESSWAY TUNNEL