Title:
【発明の名称】コンクリートブロックの製造方法
Document Type and Number:
Japanese Patent JP2958301
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a concrete block in which an insulating oil-sealing instrument is trapped by preventing insulating oil from being drawn from the inside of the insulating oil-sealing instrument and completely interrupting both insulating oil and the outside air and preventing leakage of insulating oil. SOLUTION: The whole insulating oil-sealing instrument 20 is coated with coal tar 40 by making the insulating oil-sealing instrument 20 closed in which sealing oil is sealed. A network body 42 made of metal is fitted from the upside of this coal tar 40. Then, synthetic resin 44 is covered from the upside of the network body 42 made of metal. The insulating oil-sealing instrument 20 covered with the synthetic resin 44 is held in a formwork and concrete is poured into the formwork to cover the whole insulating oil-sealing instrument 20 with concrete and thereby it is formed into a concrete block 52. Thereafter, the surface of the concrete block 52 is coated with a weathering preventive of concrete.
Inventors:
Yoshio Higuchi
Application Number:
JP13519198A
Publication Date:
October 06, 1999
Filing Date:
May 18, 1998
Export Citation:
Assignee:
Yoshio Higuchi
International Classes:
B09B3/00; B09B1/00; (IPC1-7): B09B3/00; B09B1/00
Domestic Patent References:
| JP5291566A | ||||
| JP4810873A | ||||
| JP50131000A | ||||
| JP54155176A | ||||
| JP5129591B2 | ||||
| JP5440389B2 |
Attorney, Agent or Firm:
Takao Watanuki (1 outside)
Previous Patent: 開戸の開位置での当て止め方法と戸当たり具
Next Patent: NET STRUCTURE, ITS PRODUCTION AND APPARATUS FOR PRODUCING THE SAME
Next Patent: NET STRUCTURE, ITS PRODUCTION AND APPARATUS FOR PRODUCING THE SAME