Title:
HIGHLY AIR PERMEABLE CEMENT BASED MORTAL FILLER
Document Type and Number:
Japanese Patent JP3518342
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a highly air permeable cement based mortal filler having excellent workability and air permeability without using a water reducing agent by making the viscosity low like powder, unnecessitating the adjustment of grain size of an aggregate and capable of being inexpensively obtained.
SOLUTION: An aggregate of a highly air permeable cement based mortal filler is used without adjusting the grain size and the total surface area of the aggregate is increased to make the viscosity low by the combination of W/C(water/cement ratio) and S/C(sand/cement ratio). The highly air permeable cement based mortal filler excellent in air permeability, compressive strength and packing property is manufactured without using a water reducing agent by setting the S/C to 5.0-6.0 and the W/C to 30-40%.
Inventors:
Fujino, Yoshihiko
Nakamura, Susumu
Sato, Ritsu
Mizobuchi, Asako
Nagao, Satohiro
Nakamura, Susumu
Sato, Ritsu
Mizobuchi, Asako
Nagao, Satohiro
Application Number:
JP16820098A
Publication Date:
April 12, 2004
Filing Date:
June 16, 1998
Export Citation:
Assignee:
OHBAYASHI CORP
International Classes:
G21F9/16; C04B28/02; C04B28/04; G21F9/30; C04B111/40; (IPC1-7): C04B28/02; G21F9/16; G21F9/30
Attorney, Agent or Firm:
一色 健輔 （外２名）