Method and device for producing a bitumen-bonded construction material mixture
AssigneesMitteldeutsche Harstein-Industrie AG, Eurovia
InventorsWalter Barthel, Max Von Devivere, Jean-Pierre Marchand
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Abstract
The invention relates to a method for producing a bitumen-bonded construction material mixture, such as rolled asphalt, where mineral matter is coated with bitumen that is sprayed onto the mineral matter. So as to have to heat the mineral matter only to a temperature T1 with 110° C.≦T1≦160° C., a water-containing additive is mixed in, which is added immediately before and/or during and/or immediately after spraying the binding agent.
Claims24
Method for producing a bitumen-bonded construction material mixture, in particular rolled asphalt, comprising the following procedural steps:
- preparation-relevant introduction of mineral matter into a mixing device at a temperature T1 with 110° C.≦T1≦160° C.,
- spraying of a binding agent on bitumen basis with a temperature T2 onto the mineral matter over a duration t1,
- introduction of a water-containing additive into the mixer immediately before and/or during and/or immediately after spraying the binding agent, wherein the additive is either sprayed into the mixer over a time period of t2 with T2≦t1 or the additive is introduced into the mixer together with a filler while simultaneously mixing it.
Dependencies are inferred from the claim text.