ROAD SURFACE MATERIAL FOR PASSING OF VEHICLE AND CONSTRUCTION METHOD THEREOF

Title:

ROAD SURFACE MATERIAL FOR PASSING OF VEHICLE AND CONSTRUCTION METHOD THEREOF

Document Type and Number:

Japanese Patent JP2000240004

Kind Code:

A

Abstract:

To provide road surface material for preventing a vehicle from slip ping of excellent durability laid on a expansible device made of steel provided on the joint of a bridge.

A polyurethane sheet 50 and hard aggregate particles 52 dispersedly mixed in the polyurethane sheet 50 are provided on the upper faces of the fingers 14a, 14b of an expansion device 10. Road surface material 46 in the form in which at least one part of aggregate particles 52 projects on the surface extending over the whole surface of the polyurethane sheet 50 is layingly constructed to prevent a vehicle from slipping.

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Inventors:

YAMADA HIROSHI
IDE NOBUO
NAGATA KAZUYUKI
MIYAGAWA KAZUO
MIURA KOICHI

Application Number:

JP4375299A

Publication Date:

September 05, 2000

Filing Date:

February 22, 1999

Export Citation:

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Assignee:

TOKAI RUBBER IND LTD
SUMITOMO METAL IND

International Classes:

E01C7/35; E01C11/02; E01C11/24; (IPC1-7): E01C7/35; E01C11/02; E01C11/24

Attorney, Agent or Firm:

Kazuo Yoshida

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