abstract |
The invention relates to a method for producing a gunned-concrete accelerator from a mixture a), b), or c), which method comprises mixing a) at least one aluminum compound selected from an aluminum sulfate and/or an aluminum hydroxy sulfate, at least one calcium compound, and optionally water, or b) at least one aluminum compound selected from aluminum sulfate and/or aluminum hydroxy sulfate, at least one alkali aluminate, and optionally water, wherein the alkali content of the mixture is at most 10 mass% Na |