Easy-working spray concrete

Details Easy-working spray concrete Easy-working spray concrete

C - Chemistry, Metallurgy

04

B

261/58

C04B 22/06 (2006.01) C04B 22/10 (2006.01) C04B 28/02 (2006.01)

Patent

CA 1234584

ABSTRACT OF THE DISCLOSURE: A readily processable spray concrete comprising concrete containing cement, a solidification accelerator in an amount of 2.0 to 5.0 weight-percent with respect to the cement content and a concrete liquefier, the solidification accelerator being a highly concentrated, aqueous-alkaline solution of potassium aluminate, potassium hydroxide and potassium carbonate having a molar ratio of K2O not bound as potassium carbonate to A12O3 between 1.1 and 1.6, a content in water of dilution such that the molar ratio H2O : A12O3 is between 9.5 and 30, and a potassium carbonate content of between 0.1 and 6 mol-%. And a method of preparing the spray concrete.

493712

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