Title:
HIGH-STRENGTH AND HIGH-TOUGHNESS CEMENT-BASED SOIL IMPROVING BODY USING FIBER REINFORCEMENT
Document Type and Number:
Japanese Patent JP2007270488
Kind Code:
A
Abstract:
To provide a high-strength and high-toughness cement-based soil improving body using fiber reinforcement which is used for an underground structure of an earth-retaining wall/foundation etc. of a building or civil engineering structure.
Polypropylene fibers are mixed by 0.4-2% based on the volume ratio of the soil improving body, and kneaded with soil so as to reinforce a matrix. In the polypropylene fibers with a fracture strength of 200-1,200 MPa, the ratio of the length of the fiber to the thickness of the fiber is adjusted to 1,000 or more so that the fibers can be intertwined with one another by being kneaded and agitated.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
KOJIMA MASAO
MITSUI TATEO
WACHI MASAHIRO
AOKI MASAMICHI
NAMIKAWA TSUTOMU
KODAIRA HIROSHI
MITSUI TATEO
WACHI MASAHIRO
AOKI MASAMICHI
NAMIKAWA TSUTOMU
KODAIRA HIROSHI
Application Number:
JP2006096643A
Publication Date:
October 18, 2007
Filing Date:
March 31, 2006
Export Citation:
Assignee:
TAKENAKA KOMUTEN CO
International Classes:
E02D3/12
Domestic Patent References:
| JP2003239276A | 2003-08-27 | |||
| JP2001355233A | 2001-12-26 | |||
| JPH06257135A | 1994-09-13 | |||
| JP2001048609A | 2001-02-20 |
Attorney, Agent or Firm:
Masahiko Yamana
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