Title:
FIBER REINFORCED POROUS CONCRETE MOLDING AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3088665
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a porous concrete molding which has large flexural strength, a large flexural tenacity coefficient and a large coefficient of water permeability and which is applicable to a large plate such as a precast paving plate for a carriageway.
SOLUTION: In a fiber reinforced porous concrete molding, granules covered with paste or mortar 2 containing single fibers 3 in a coarse aggregate 1 are bound via the paste or the mortar 2. In this case, the single fibers 3 are incorporated thereinto in a direction bridging coarse aggregates 1. Average covering thickness of the paste or the mortar 2 covering the coarse aggregate 1 and containing single fibers is 1 to 5mm, length of the single fiber is ≥2mm and ≤1.5 times maximum grain size of the coarse aggregate. Further, the porous concrete molding has 5.0 to 7.0N/mm2 flexural strength, 5.0 to 7.5N/mm2 flexural tenacity coefficient and 0.3 to 3.0cm/sec. coefficient of water permeability.
Inventors:
Hiromi Fujiwara
Tatsumasa Shibata
Masayuki Ueno
Tatsumasa Shibata
Masayuki Ueno
Application Number:
JP24310096A
Publication Date:
September 18, 2000
Filing Date:
September 13, 1996
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
E01C5/08; B28B1/08; B28B1/50; C04B14/48; C04B16/06; C04B28/02; C04B38/00; C04B111/40; (IPC1-7): C04B38/00; B28B1/50; C04B14/48; C04B16/06; C04B28/02
Domestic Patent References:
| JP328152A | ||||
| JP6221770A | ||||
| JP62241882A | ||||
| JP7206537A |
Attorney, Agent or Firm:
Nao Okuyama (4 outside)