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US 12,708,908 B2Granted
Methods for the retrieval of aggregate from waste construction material by grinding
AssigneeSika Technology AG
InventorsArnd Bernd Eberhardt, Denise Muths-Kern, Lukas Frunz, Luis Pegado, Patrick Juilland, Emmanuel Gallucci
Life of this patent
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Abstract
Methods for the retrieval of aggregates from waste construction material by grinding in a ball mill or on a compressive grinder, which are useful in the recycling of waste construction material, especially in the recycling of concrete or mortar. Also, cleaned aggregates obtained from waste construction material by grinding and their use on the production of new construction materials.
Claims9
A method for retrieval of aggregates from waste construction material, the method comprising a step of grinding the waste construction material, wherein:
- the waste construction material comprises at least one aggregate and at least one mineral, hydraulic binder;
- the grinding is done in a ball mill or in an agitation mill;
- and
- a mass ratio of waste construction material to grinding media is 0.2:1 to 3:1.
1 more element
Dependencies are inferred from the claim text.