CUTTING METHOD FOR EXISTING CONCRETE AT LOW NOISE

PROBLEM TO BE SOLVED: To cut existing concrete 31 accurately at a low noise. SOLUTION: Four or more cutter grooves 6a, 6b, 7a and 7b are made in an existing concrete, a coil-shaped electric heating wire 13 is inserted in each groove except those located farthest outer sides, these coils are heated f...

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Bibliographische Detailangaben
Hauptverfasser:	OYAMA NAOTO, OMORI YASUKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHUTTERING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To cut existing concrete 31 accurately at a low noise. SOLUTION: Four or more cutter grooves 6a, 6b, 7a and 7b are made in an existing concrete, a coil-shaped electric heating wire 13 is inserted in each groove except those located farthest outer sides, these coils are heated for a predetermined period of time, and the concrete 31 at the target groove positions are made fragile and then cut away.