The present invention relates to hot or warm asphalt mix comprising a granular fraction and a hydrocarbon-based binder, characterised in that the elements of the granular fraction have dimensions between 0 mm and 10 mm, and in that the hydrocarbon-based binder comprises a workability additive, having a melting point above 60 C. and below 130 C., said asphalt mix being resistant to rutting, compact and workable, with a workability, measured with a Nynas workability meter at the working temperature of the asphalt mix, of less than 350N and insulating with a thermal conductivity, , of less than 1 W/m.Math.K.

It also relates to a road surfacing, in particular comprising an integration layer based on the asphalt mix comprising pipes of a heat exchanger device.

It finally relates to a method for preparing such a road surfacing.

The present invention provides a functionally dry warm mix asphalt binder composition modified with lubricating agents or additives that can be mixed with aggregate and compacted at temperatures substantially below asphalt binder compositions that do not contain the disclosed lubricating additives.

A method involving either: determining a first amount of asphalt emulsion required to generate a mixture for roadway material so that the roadway material will exhibit a predetermined strength; or adding a first amount of asphalt emulsion to a road base material to generate a mixture for roadway material and determining a strength of the mixture. The method involves determining an amount of maltene compounds to be mixed with a second amount of asphalt emulsion so that a mixture of the second amount of asphalt emulsion and the amount of maltene compounds used to generate roadway material will exhibit the predetermined strength or the strength, the second amount of asphalt emulsion being less than the first amount of asphalt emulsion. The method involves generating a mixture including the second amount of asphalt emulsion, the amount of maltene compounds, and the road base material.

The present invention provides an asphalt paving composition including an essentially water-free, non-foamed warm mix asphalt binder composition modified with lubricating antistrip additives that can be mixed with uncompacted aggregate to provide a warm mix paving composition of the aggregate adequately coated with the essentially water-free, non-foamed binder and lubricating antistrip additive. This warm mix paving composition may be mixed at temperatures of 280 F. or lower and may be compacted at temperatures of 260 F. or lower that are below mixing and compacting temperatures of similar paving compositions that do not contain the disclosed lubricating antistrip additives.

Some embodiments of the present disclosure relate to a method comprising obtaining a mixture comprising at least one vinyl polymer, at least one organic acid, and at least one hydronium ion donor. In some embodiments, the method comprises reacting an OH group of the B polymer chain segment with the at least one organic acid in the presence of the at least one hydronium ion donor, so as to form at least one polyvinyl ester. Some embodiments of the present disclosure relate to a roofing material comprising at least one reinforcement material and at least one polyvinyl ester.

A composition that includes asphalt component; and graphite component.

A method for producing an asphaltic sheet having expandable graphite dispersed in one or more asphaltic components thereof, the method comprising: (i) preparing a masterbatch by combining asphalt binder and polymeric modifier at a first temperature; (ii) cooling the masterbatch to a second temperature, where the second temperature is lower than the first temperature; (iii) adding, after said step of cooling, expandable graphite to the masterbatch to thereby form an asphaltic composition including expandable graphite; and (iv) fabricating a sheet with the asphaltic composition including expandable graphite.

A method for producing an asphaltic sheet having expandable graphite dispersed in one or more asphaltic components thereof, the method comprising: (i) preparing a masterbatch by combining asphalt binder and polymeric modifier at a first temperature; (ii) cooling the masterbatch to a second temperature, where the second temperature is lower than the first temperature; (iii) adding, after said step of cooling, expandable graphite to the masterbatch to thereby form an asphaltic composition including expandable graphite; and (iv) fabricating a sheet with the asphaltic composition including expandable graphite.

The present invention relates to an asphalt composition comprising asphalt or an asphalt mixture and to a silicon carbide-containing binder that can be heated by means of microwaves. The silicon carbide is present in the binder in particle form, the equivalent diameter of silicon carbide particles contained in the binder is less than 60 m. The invention also relates to a method for producing and/or renovating road surfaces or asphalt surfaces comprising at least one asphalt surface layer.

Scavenging compounds and compositions useful in reducing sulfide emissions from polymer treated asphalt, such as polyphosphoric acid, are disclosed. The scavengers include hexamethyl-enetetramine, water-free triazine, and water-free 1,3,5-triazine derivatives of formula I. Methods of using the compositions to reduce hydrogen sulfide emissions from asphalt are also disclosed.