Title:
LIQUID QUICK-SETTING AGENT, SPRAYED CONCRETE COMPOSITION, SPRAYED CONCRETE, AND SPRAYING CONSTRUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/091528
Kind Code:
A1
Abstract:
Provided are: a liquid quick-setting agent that can prevent the inhibition of quick-setting of a quick-setting agent due to the precipitation of natroalunite, and exhibit good workability; a sprayed concrete composition; a sprayed concrete; and a spraying construction method. The liquid quick-setting agent is mixed with a sprayed concrete composition that includes: a polyethylene oxide having a mass average molecular weight of 100,000-300,000; and a cement concrete. The liquid quick-setting agent contains aluminum, sulfur, and sodium, wherein the content of natroalunite is 0.3-3 mass%.
Inventors:
MUROKAWA TAKAMITSU (JP)
MIZUNO HIROKI (JP)
MIZUNO HIROKI (JP)
Application Number:
PCT/JP2021/030066
Publication Date:
May 05, 2022
Filing Date:
August 17, 2021
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C04B22/14; C04B22/06; C04B24/32; C04B28/02; E21D11/10; C04B103/14
Foreign References:
| JP2007055831A | 2007-03-08 | |||
| JP2010007230A | 2010-01-14 | |||
| JP6785389B1 | 2020-11-18 |
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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