Title:
スラブ軌道用モルタル
Document Type and Number:
Japanese Patent JP7002223
Kind Code:
B2
Abstract:
To provide slab track cement mortar that is excellent in frost damage resistance not depending on construction condition and has strength development supporting a track slab, as well as having moderate elasticity as a buffer layer and excellent in workability.SOLUTION: Slab track cement mortar contains cement of 100 parts mass, fine aggregates of 25 to 250 parts mass, an asphalt emulsion of 50 to 200 parts mass, and a rubber powder and water of 10 to 200 parts mass, where the rubber powder has a maximum particle diameter of 500 μm or less, an average particle diameter of 50 to 300 μm, and a content of 3 to 25 volume%/cement mortar. In addition, a Young's modulus of the material with material age of 28 days is preferably 1000 N/mm2 or less, and compressive strength of the material with the material age of 28 days is preferably 1 to 10 N/mm2 or less. The slab track cement mortar is also provided with its flow time being 35 seconds or less.SELECTED DRAWING: None
Inventors:
Ryozo Yoshida
Fukuyama Makoto
Fukuyama Makoto
Application Number:
JP2017109710A
Publication Date:
January 20, 2022
Filing Date:
June 02, 2017
Export Citation:
Assignee:
Pacific Material Co., Ltd.
International Classes:
C04B28/02; C04B16/04; C04B22/08; C04B24/36; E01B1/00; E01B37/00
Domestic Patent References:
| JP200973701A | ||||
| JP2004323311A |
Attorney, Agent or Firm:
Alga Patent Office, a patent business corporation