Abstract In a method for the production of a plant-mixed asphalt mix for paving purposes by mixing a batch of bituminous binder and a batch of mineral aggregate in a mixer at a temperature at which the binder has a viscosity of at least 150 cSt, the batch of mineral aggregate containing both particles above 2 mm and particles within the range of 2-0.5 mm and also smaller particles, the batch of mineral aggregate is divided into a first and a second part in such a way that said second part contains particles of said mineral aggregate batch within the range 2-0.5 mm, and said first part of the mineral aggregate batch is first mixed with the binder batch before said second part of the mineral aggregate batch is introduced into the mixer.
Inventors
👤 Karl Gunnar Ohlson
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-01 05:23
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
49 words
The improvement according to claim 1, in which said batch of mineral aggregate is divided into said first and second parts in such a way that said second part contains at least 10 % by weight of the particles of said mineral aggregate batch within the range 2-0.5 mm.
Claim 2
Dependent Claim
50 words
The improvement according to claim 1, in which said batch of mineral aggregate is divided into said first and second parts in such a way that said second part contains at least 50 % by weight of the particles of said mineral aggregate batch within the range of 2-0.5 mm.
Claim 3
Dependent Claim
188 words
In a method for the production of stable homogeneous a plant-mixed asphalt mix for paving purposes by mixing a batch of bituminous binder and a batch of mineral aggregate in a mixer at a temperature at which said binder has a viscosity of 200-500 cSt, said batch of mineral aggregate containing both particles above 2 mm and particles within the range of 2-0.5 mm and also smaller particles, said batch of mineral aggregate being divided into at least a first and a second part, said first part being first mixed in the mixer with said batch of binder whereafter said second part is introduced into the mixer and the mixing is continued until mixing is completed, the improvement comprising dividing said batch of mineral aggregate into said first and second parts in such a way that said second part contains practically all particles of said mineral aggregate batch within the range up to 2 mm, whereby said bituminous binder and mineral aggregate produce a mixture having high homogeneity without separations in the mineral aggregate composition and without agglomeration of particle sizes within the range up to 2 mm.