Basf Se Corporation

Arr-maz Products. L.p.

Semmaterials, L.p.

Road Science, LLC

Kmc Enterprises, Inc.

Arr-marr Products, L.p.

Senmaterials, L.p.

Arlis Kadrmas

Renato Ceccovilli

Todd Thomas

Armin Burghart

Kostas S Avramidis

William J Kirk

James T Andrews

Kimberly L Walden

Provided herein are asphalt compositions comprising asphalt, a carboxylated copolymer, a polyalkyleneimine, and a photoinitiator. The carboxylated copolymer present in the asphalt compositions can be a latex composition derived from a carboxylated styrene-butadiene copolymer. The carboxylated copolymer includes from 0.5% to 25% by weight carboxylic acid monomers. The carboxylated styrene-butadiene polymer and the asphalt can be present in a weight ratio of from 1:99 to 1:10. The polyalkyleneimine present in the asphalt compositions can be in an amount of greater than 0% to up to 10% by weight of the asphalt composition. The photoinitiator can include benzophenone and/or a derivative thereof. Tack coats meeting ASTM-D-977 standard comprising the asphalt compositions disclosed herein are also provided. The tack coat can have a tack-free time of 10 minutes or less. Methods of producing the asphalt compositions and tack coats are also disclosed.

Asphalt composition and method of using same in tack coats

A composition for use in a pavement surface, comprises (a) asphalt in an amount of from 40 to 70 parts by weight; (b) an electrically neutral copolymer in an amount of from greater than 0 to 10 parts by weight; (c) an emulsifier in an amount of from 0.1 to 4 parts by weight; (d) an acid or a base in an amount of from 0.1 to 4 parts by weight; and (e) water in an amount of from 25 to 60 parts by weight. A method of making a composition, a method of applying a composition, and a paved surface is also disclosed.

Compositions comprising asphalt and electrically neutral copolymer dispersions

A method of selecting a fiber modified layer for applying on an existing surface, comprising the steps of: providing a binder mixture having an effective amount of an aggregate material, a binder, and a plurality of fibers, wherein each of the plurality of fibers has a length greater than 0.25 inches; applying the binder mixture to a selected surface to form a fiber modified proposed layer; testing the fiber modified proposed layer for fatigue or crack resistant properties, where testing the fiber modified proposed layer for fatigue or crack resistant properties comprises using a Modified Disc Compact Tension Test in accordance with Modified ASTM D7313-07; and selecting the binder mixture for application on the existing surface for performance if the fiber modified proposed layer has fatigue or crack resistant properties.

Fiber modified layer and methods of making and using same

A composition for use in a fiber modified layer, comprising an aggregate material, a binder, and a plurality of fibers, wherein each fiber has a length of greater than 0.25 inches. Also provided is a method of selecting a fiber modified layer for applying on an existing surface, comprising the steps of: providing a binder mixture having an effective amount of an aggregate material, a binder, and a plurality of fibers, wherein each of the plurality of fibers has a length greater than 0.25 inches; applying the binder mixture to a selected surface to form a fiber modified proposed layer; testing the fiber modified proposed layer for fatigue or crack resistant properties; and selecting the binder mixture for application on the existing surface for performance if the fiber modified proposed layer has fatigue or crack resistant properties.

A method of reconstructing a road by selecting a bituminous mixture for repairing a paved surface and re-paving the surface using a hot in-place recycling process. Selection includes adding and mixing various types and amounts of bitumens with a reclaimed sample of the paved surface to form mixtures, compacting the mixtures to form test specimens with air voids within about 1-3% of the air voids of the paved surface or density within 10-20% of the density of the paved surface, and measuring the rheology of the specimens, preferably by a tensile strength procedure. Selecting bitumen content based on the rheology of the tested specimens. Re-paving the surface by milling the surface to a depth of about 1.5-8 inches, mixing the selected bitumen with the milled surface, and paving the surface with the paving mixture thus formed.

Design technique for selecting a bituminous mixture for use in a hot in-place recycling process

A method of reconstructing a road is provided. This method includes taking representative cores of the road, analyzing the cores, selecting a substantially solvent-free emulsion based on climate history, mixing the emulsion and reclaimed asphalt pavement particles to form an asphalt emulsion mix, testing the asphalt emulsion mix for performance using a raveling test, a thermal cracking prediction test by an indirect tensile testing, a moisture susceptibility test utilizing vacuum saturation, and a dry Marshall stability test. It also includes designing a CIR layer based on this test data. It further includes grinding off a layer of the existing asphalt road leaving at least about an inch, adding an emulsion to the reclaimed asphalt pavement particles, applying the designed cold in-place recycling layer to the road, and compacting it.

Cold in-place recycling of bituminous material

A method of reconstructing includes taking representative cores of the road, analyzing the cores, selecting a substantially solvent-free emulsion based on climate history, mixing the emulsion and reclaimed asphalt pavement particles to form an asphalt emulsion mix, testing the asphalt emulsion mix for performance using a raveling test, a thermal cracking prediction test by an indirect tensile testing, a moisture susceptibility test utilizing vacuum saturation, and a dry Marshall stability test. It also includes designing a CIR layer based on this test data. It further includes grinding off a layer of the existing asphalt road leaving at least about an inch, adding an emulsion to the reclaimed asphalt pavement particles, applying the designed cold in-place recycling layer to the road, and compacting it.

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Wichita, KS, United States of America

Arlis Kadrmas