Invention Grant
- Patent Title: Quick-setting admixture and spraying method using it
- Patent Title (中): 快速设定外加剂和喷雾方法
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Application No.: US12447472Application Date: 2007-11-07
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Publication No.: US08950928B2Publication Date: 2015-02-10
- Inventor: Yasuhiro Nakashima , Youhei Yamagishi , Shunichi Mishima , Isao Terashima
- Applicant: Yasuhiro Nakashima , Youhei Yamagishi , Shunichi Mishima , Isao Terashima
- Applicant Address: JP Tokyo
- Assignee: Danki Kagaku Kogyo Kabushiki Kaisha
- Current Assignee: Danki Kagaku Kogyo Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-304597 20061109; JP2007-188759 20070719
- International Application: PCT/JP2007/071662 WO 20071107
- International Announcement: WO2008/056716 WO 20080515
- Main IPC: B05D1/02
- IPC: B05D1/02 ; C04B7/06 ; C04B28/02 ; C04B40/00 ; E04F21/12 ; C04B103/12 ; C04B111/00
Abstract:
A slurry quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate, an alkali metal sulfate, and water; and a quick-setting cement concrete comprising such a slurry quick-setting admixture and cement concrete. The slurry quick-setting admixture may further contain calcium sulfate, calcium hydroxide and/or aluminum hydroxide, a retarder, etc. The spraying method comprises mixing water and a powder quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate and an alkali metal sulfate, to form a slurry quick-setting admixture, mixing this slurry quick-setting admixture with cement concrete to form a quick-setting cement concrete, and spraying this quick-setting cement concrete.
Public/Granted literature
- US20100072294A1 SET ACCELERATOR AND TECHNIQUE FOR SPRAYING WITH THE SAME Public/Granted day:2010-03-25
Information query
