CONCRETE CRUSHING METHOD AND ROAD REPAIR METHOD

PROBLEM TO BE SOLVED: To propose a concrete crushing method and a road structure repair method that make it possible to safely and simply crush a concrete hardened body comprising ultra-quick-hardening concrete, and can be adopted even at a construction site having time constraints.SOLUTION: The pre...

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Bibliographische Detailangaben
Hauptverfasser:	ONO SHUICHI, WATANABE SHINYA, SATO EISAKU, EBATO TAKESHI, OKABE TSUGUYOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHUTTERING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To propose a concrete crushing method and a road structure repair method that make it possible to safely and simply crush a concrete hardened body comprising ultra-quick-hardening concrete, and can be adopted even at a construction site having time constraints.SOLUTION: The present invention provides a concrete crushing method and a road structure repair method including a heating step S2 for heating a planned removal range of a hardened body of ultra-quick-hardening concrete, and a crushing step S5 for crushing the hardened body in the planned removal range. In the heating step S2, heating is conducted by heating means at 200°C or more and less than 250°C for 50 minutes or more.SELECTED DRAWING: Figure 2 【課題】超速硬コンクリートからなるコンクリート硬化体を安全かつ簡易に破砕することができ、なおかつ、時間的制約がある工事個所においても採用することが可能なコンクリート破砕方法および道路構造物の補修方法を提案する。【解決手段】超速硬コンクリートの硬化体の撤去対象範囲を加熱する加熱工程Ｓ２と、撤去対象範囲内の硬化体を破砕する破砕工程Ｓ５とを備えており、加熱工程Ｓ２では、２００℃以上２５０℃未満の加熱手段により５０分以上加熱するコンクリート破砕方法および道路構造物の補修方法。【選択図】図２