Road finisher and a method of applying surface layers

Details Road finisher and a method of applying surface layers Road finisher and a method of applying surface layers

1996-06-19

1998-04-07

Lisehora, James

Road structure, process, or apparatus

Apparatus

Material distribution means

404108, 404111, 404114, 4041332, E01C 1922, E01C 1940, E01C 1948

Patent

active

057356343

ABSTRACT:
A road finisher, which is used for simultaneously applying at least two surface layers comprises a chassis, a travelling mechanism, at least two premix containers arranged on said chassis, a lateral distributor associated with the respective premix container and adapted to have material supplied thereto via a conveyor path extending in the chassis, and lateral outriggers attached to the chassis as well as a dragged road-surface applying device used for applying a surface layer and arranged on said outriggers, all road-surface applying devices being high-compaction road-surface applying screeds for recompaction-free application of a surface layer, and each high-compaction road-surface applying screed constituting a rear screed, when seen in the direction of movement, which is constructed as a high-compaction road-surface applying screed which is adapted to be used for applying and compacting concrete. In the method of applying surface layers by use of such a road finisher, the surface layers are applied one immediately after the other and in one operation in such a way that each first surface layer is highly compacted during application to such a degree that recompaction is no longer necessary and each following surface layer is applied to the highly-compacted surface layer and then, in turn, highly compacted to such a degree that recompaction is no longer necessary.

REFERENCES:
patent: 3841777 (1974-10-01), Domenighetti
patent: 4073592 (1978-02-01), Godberson et al.
patent: 4124325 (1978-11-01), Cutler
patent: 4473320 (1984-09-01), Register
patent: 4594022 (1986-06-01), Jeppson
patent: 4948292 (1990-08-01), Haven et al.
patent: 5201603 (1993-04-01), Bassett et al.
patent: 5217320 (1993-06-01), Cioffi
patent: 5348418 (1994-09-01), Campbell
patent: 5516231 (1996-05-01), Helms et al.

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