Title:
UNDER-BEAM NOISE PREVENTION STRUCTURE HAVING CONCRETE PIECE EXFOLIATION PREVENTION PERFORMANCE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2017014690
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an under-beam noise prevention structure, which can improve performance relating to an influence degree on a third party and has a concrete piece exfoliation prevention performance, and a manufacturing method thereof.SOLUTION: An under-beam noise prevention structure comprises: an exfoliation prevention layer, which is attached on a concrete surface under a concrete elevated bridge through a first adhesive and has punching resistance of 1.5 MPa or higher; and a sound absorption layer, which is disposed below the exfoliation prevention layer and has an average oblique incident acoustic absorption coefficient of 0.7 or higher.SELECTED DRAWING: None
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Inventors:
SAKAI HIDEAKI
MAKITA TORU
MAKITA TORU
Application Number:
JP2015128992A
Publication Date:
January 19, 2017
Filing Date:
June 26, 2015
Export Citation:
Assignee:
CENTRAL NIPPON EXPRESSWAY CO
International Classes:
E01F8/00; E01D1/00
Domestic Patent References:
| JP2009150085A | 2009-07-09 | |||
| JP2001172990A | 2001-06-26 | |||
| JP2011052457A | 2011-03-17 | |||
| JPH08276530A | 1996-10-22 | |||
| JP2003269088A | 2003-09-25 | |||
| JPH11327562A | 1999-11-26 | |||
| JP2000290938A | 2000-10-17 | |||
| JP2004029683A | 2004-01-29 | |||
| JP2004004687A | 2004-01-08 |
Foreign References:
| US5427819A | 1995-06-27 |
Other References:
藤倉裕介，伊藤祐二，秩父顕美: "ポリマーセメントモルタルと連続繊維シートを用いたコンクリート剥落防止工法に関する基礎実験", コンクリート工学年次論文集, vol. 25, no. 1, JPN6019000993, 2003, JP, pages 1487 - 1492, ISSN: 0003958710
Attorney, Agent or Firm:
Takeshi Miyabe
Komori Eiji
Komori Eiji