Title:
LID FOR U-SHAPED GROOVE
Document Type and Number:
Japanese Patent JP2003183066
Kind Code:
A
Abstract:
To obtain a lightweight lid for a U-shaped groove easily constructable while having a sufficient bending strength.
This lid for the U-shaped groove comprises a concrete prepared by mixing a metal fiber, water and a composition including cement, an aggregate particle having a maximum particle diameter of 2 mm or less, a pozzolan- based reactive particle having a primary particle size of 1 μm or less, a needle- or flake-like particle having an average particle size of 1 mm or less and at least one dispersant. In the lid, either one of the reinforcing bars made of steel or of a fiber-reinforced composite material is disposed according to a load acting on the U-shaped groove or the opening width thereof.
Inventors:
TAKEUCHI MAKOTO
ONO TAKESHI
TSUCHIDA SHINJI
HONMA MASAHITO
ONO TAKESHI
TSUCHIDA SHINJI
HONMA MASAHITO
Application Number:
JP2002278962A
Publication Date:
July 03, 2003
Filing Date:
September 25, 2002
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP
NIPPON CONCRETE IND CO LTD
NIPPON CONCRETE IND CO LTD
International Classes:
E02B9/06; C04B14/48; C04B20/00; C04B28/02; E02F5/10; E03F5/04; F16L1/038; (IPC1-7): C04B28/02; C04B14/48; C04B20/00; E02B9/06; E02F5/10; F16L1/038
Attorney, Agent or Firm:
Kabazawa Xiang (2 people outside)
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