Method for production of a surface layer for traffic areas and the like
AssigneeAlfred Kunz GmbH & Co.
InventorsAlbert Schuhbauer, Otto Hieber
Life of this patent
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Abstract
A surface layer for traffic areas such as roads and airport landing strips is produced by laying a load-carrying structure comprising chip grains of mean diameter of from 2 to 25 mm, with a mean size ratio of not more than 1:3 between the smallest and the biggest grains mainly present in the mixture and a bituminous binder comprising stiffening fillers and/or elastomers, compacting the structure and inducing a flowable mortar of high viscosity to penetrate the structure to its entire depth.
Claims11
A method for the production of a surface layer for traffic areas and the like comprising the steps of:
- selecting chip grains from a group of chips having mean diameters in the range of 2 - 25 mm and a mean size ratio of not more than 1:3 between the smallest and the biggest grains;
- adding a bituminous binder comprising a stiffening agent to said chip grains;
- compacting said chip grain-binder combination;
- adding a high viscosity flowable mortar to said compacted combination;
- and
- inducing said mortar to penetrate the combination to substantially the entire depth thereof.
A method for producing a load carrying flexible surface comprising the steps of:
- compacting a mixture of uniformly sized chip grains and bituminous binder having a stiffening filler;
- encasing substantially all of the chips in a film of said binder;
- forming a voids volume of said compacted mixture of between 18 and 22%;
- adding a high viscosity flowable mortar to the compacted mixture;
- inducing said mortar to penetrate the compacted mixture to substantially the entire depth thereof;
- and
- filling substantially all of said voids with said flowable mortar.
A method for the production of a substantially uniform surface layer for traffic areas and the like comprising mixing chip grains having mean diameters in the range of 2 to 25 mm and a mean size ratio of not more than 1:3 with a bituminous binder having a stiffening agent or elastomer incorporated therein, forming said mixture into a layer, roller compacting said layer to reduce the voids volume of the layer, and causing by vibration a high viscosity flowable mortar to penetrate said compacted layer to substantially the entire depth of said compacted layer to substantially fill said voids volume.
A surface layer for traffic areas and the like, comprising a compacted load-carrying structure comprising chip grains of mean diameter in the range of from 2 to 25 mm, with a mean size ratio of not more than 1:3 between the smallest and the biggest grains of the commercial grain size and a bituminous binder comprising a stiffening filler and/or an elastomer and a mortar dispersed throughout the structure.
Dependencies are inferred from the claim text.