METHOD FOR CUTTING CONCRETE MEMBER

WIPO Patent Application WO/2022/131206

A1

The purpose of the present invention is to provide an easy-to-use and efficient method for cutting a concrete member, in particular, a method that is for cutting a reinforced concrete member, that makes it easy to increase cutting depth and cutting width, and that is low in cutting cost. To achieve the purpose, the present invention provides a method for cutting a concrete member through irradiation of the concrete member with laser, the method being characterized in that: the concrete member includes a steel material; concrete is melted by scanning laser thereon to form a cutting region; the steel material is heated by means of laser to a temperature that causes progression of self-burning of the steel material; and the melting of the concrete is expedited by heat generation from said self-burning.

KAWAHITO YOUSUKE (JP)
HORI MUNEO (JP)
SHIMANE YASUHIRO (JP)
MATSUI YOUHEI (JP)
KAMEDA TOSHIHIRO (JP)
MADDEGEDARA LALITH WIJERATHNE (JP)
YOSHIDA HIROYUKI (JP)
OTA KOHEI (JP)
NAKADA TATSUYA (JP)
MASE TATSUYA (JP)

PCT/JP2021/045807

June 23, 2022

December 13, 2021

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JAPAN AGENCY MARINE EARTH SCI (JP)
TOKYO ELECTRIC POWER SERVICES CO LTD (JP)

B26F3/16; B23K26/38; B28D1/22; E04G23/08

JP2020099918A	2020-07-02
JPH069769U	1994-02-08
JP2000170473A	2000-06-20
US20060032843A1	2006-02-16

IPR CONSULTANT PPC (JP)

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