Title:
ADMIXING AGENT FOR SPRAYING CONCRETE
Document Type and Number:
Japanese Patent JP3206805
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an admixing agent having suppressed generation of crack and improved long-term durability of sprayed-on concrete and appearance by containing an expansive cement admixture and a quick setting admixture for cement.
SOLUTION: This sprayed-on concrete is formulated with 3-20 pts.wt. of the expansive cement admixture obtained by carrying out a reaction of calcium aluminate and plaster or an expansive cement admixture obtained by burning a burned CaO and plaster at 1100-1300°C having ≤10μm of average crystal diameter and ≥3 pts.wt. of the quick setting admixture for cement per 100 pts.wt. of cement.
Inventors:
Kenkichi Hirano
Kazuyuki Mizushima
Kazuyuki Mizushima
Application Number:
JP19843397A
Publication Date:
September 10, 2001
Filing Date:
July 24, 1997
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
International Classes:
E02D17/20; C04B22/06; C04B22/08; C04B22/14; E21D11/10; C04B103/12; C04B103/60; (IPC1-7): C04B22/14; C04B22/06; C04B22/08; E02D17/20
Domestic Patent References:
| JP62191454A | ||||
| JP59141447A |
Other References:
【文献】笠井・小林編『セメント・コンクリート混和材料』昭和61年5月15日 技術書院発行 135頁