Title:
CONCRETE, TUNNEL LINING BODY AND CONCRETE MIXING DESIGN METHOD
Document Type and Number:
Japanese Patent JP2019065638
Kind Code:
A
Abstract:
To propose a mixing design method of concrete, tunnel lining body and concrete which is difficult to separate materials, secures necessary strength, and can be manufactured inexpensively.SOLUTION: A method of mixing and designing concrete containing cement, water, fine aggregate and coarse aggregate comprises a first mixing step S1 of determining a basic mix of concrete capable of securing workability according to necessary strength and construction conditions and a second mixing step S2 of determining the concrete mix in which the unit water content in the basic mix is reduced by increasing the amount of air in the paste in the basic mix.SELECTED DRAWING: Figure 1
Inventors:
LIANG JUN
MARUYA TAKESHI
MARUYA TAKESHI
Application Number:
JP2017194044A
Publication Date:
April 25, 2019
Filing Date:
October 04, 2017
Export Citation:
Assignee:
TAISEI CORP
International Classes:
E21D11/08; C04B28/02
Domestic Patent References:
| JPS6313709A | 1988-01-21 | |||
| JP2012162418A | 2012-08-30 | |||
| JP2015044730A | 2015-03-12 | |||
| JP2000327395A | 2000-11-28 | |||
| JP2015124097A | 2015-07-06 | |||
| JP2007246308A | 2007-09-27 | |||
| JP2015218074A | 2015-12-07 | |||
| JP2015017583A | 2015-01-29 |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office