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Title:
FORM FOR CONCRETE, AND METHOD FOR CONSTRUCTING CONCRETE
Document Type and Number:
Japanese Patent JP2005048572
Kind Code:
A
Abstract:

To provide a form for concrete, and a method for constructing concrete, capable of eliminating nonconformity such as generation of cracking in concrete in the process of being hardened caused by a gap generated due to cracking at junction parts of form materials with each other even when the form for concrete receives loads (including vibration loads) while being cured.

A plurality of the form materials 20 are jointed with each other at end parts, and concrete 2 is placed inside in this form 10 for concrete. The form materials 20 are formed of expandable material. The form materials 20 are expanded/contracted to follow deformation when the form 10 for concrete receives the loads to deform, so that stress concentration at the junction parts of the form materials 20 with each other is reduced. Therefore, even when the form 10 for concrete receives the loads (including vibration loads) while the concrete 2 is being hardened, there is no nonconformity such as generation of cracking in the concrete 2 in the process of being hardened due to a gap generated in the junction parts of the form materials 20 with each other.


Inventors:
ISHIBASHI TADAYOSHI
Application Number:
JP2003338732A
Publication Date:
February 24, 2005
Filing Date:
September 29, 2003
Export Citation:
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Assignee:
HIGASHI NIPPON RYOKAKU TETSUDO
International Classes:
E01D21/00; E04B1/16; E04G9/00; (IPC1-7): E04B1/16; E04G9/00
Domestic Patent References:
JP2001279810A2001-10-10
JP2001026933A2001-01-30
JPH09184227A1997-07-15
JP2001317154A2001-11-16
JPS5883751A1983-05-19
JP2002206311A2002-07-26
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune