Bitumen granules including at least: bitumen, a compound of general formula R1-(COOH)z (I), a compound of general formula R2-(NH)nCONH—X—(NHCO)p(NH)n-R3 (II), and a compound of general formula Ar1-R-Ar2 (III); and a method for producing the bitumen granules and to the use thereof as asphalt binder.

Cold-in-place asphalt recycling is disclosed. A foamed asphalt may be produced by injecting water and optionally compressed air into a hot asphalt stream. A lubricating surfactant may be added to the hot asphalt stream to improve performance. The foamed asphalt may be mixed with reclaimed material to provide a uniformly coated paving material that can compacted to a desired density.

A void filling asphalt emulsion and a method of using the void filling asphalt emulsion to fill voids below the surface of an asphalt pavement. The void filling emulsion is prepared by forming a base asphalt emulsion having about 45 to 75 wt. % of an asphalt content, and combining the base asphalt emulsion with a surface tension reducing solution to produce a void filling asphalt emulsion that has about 25 to 50 wt. % of an asphalt content. When applied to an asphalt pavement the void filling emulsion penetrates into the asphalt pavement and fills voids in the asphalt pavement. The void filling emulation further being water resistant so as not to be washed off a pavement surface by water after being applied to the pavement.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

A gel composition is a gel composition containing a base oil (a) and a hydrogenated block copolymer (b), wherein the hydrogenated block copolymer (b) is a hydrogenated product of a diblock copolymer composed of a polymer block (A) consisting mainly of a structural unit derived from an aromatic vinyl compound and a polymer block (B) consisting mainly of a structural unit derived from a conjugated diene compound, the content of the polymer block (A) in the hydrogenated block copolymer (b) being 38.0 to 45.0% by mass; and the content of the hydrogenated block copolymer (b) in the gel composition is 1 to 20 parts by mass based on 100 parts by mass of the total amount of the base oil (a) and the hydrogenated block copolymer (b).

A solid bitumen pellet, including a mixture of bitumen and an additive, where the additive operates to increase the viscosity of the mixture. Optionally, the pellet includes a protective shell.

A modified asphalt binder with improved elastic properties and methods of making such modified asphalt binder. The modified asphalt binders may include one or more of an asphalt binder, a solvent deasphalted (SDA) pitch, a polymeric material, and optionally, a ground tire rubber. The disclosed modified asphalt binders exhibit properties consistent with decreased susceptibility to rutting and thus may be used in asphalt concrete applications.

The invention relates to a bitumen additive comprising a wax dispersed in water, the water being in the continuous phase and the wax in the dispersed phase; the wax comprising a Fischer-Tropsch wax and one or more hydrocarbon waxes selected from the group comprising petroleum-based waxes, polyolefin waxes, or mixtures thereof; and an emulsifier. The invention extends to a method to produce a foamed bitumen composition by adding a bitumen additive to a bitumen feedstock in a bitumen foaming device to produce the foamed bitumen, and to a method to produce an asphalt mix by adding a bitumen feedstock and a bitumen additive to an aggregate in an asphalt mixer to produce the asphalt mix.

The present disclosure relates to a modified bitumen composition comprising: (a) at least two refinery residues; and (b) a sulphur additive comprising: (i) sulphur; (ii) at least one H.sub.2S suppressant; (iii) at least one smell masking agent; and (iv) bitumen, wherein the sulphur and the at least one H.sub.2S suppressant is in the weight ratio range of 4:1 to 100:1. The present disclosure also discloses a process of preparing a modified bitumen composition and a process of preparing an asphalt pavement comprising a modified bitumen composition. Also provided herein use of a modified bitumen composition as an additive for waterproofing and road construction.

Some embodiments of the present disclosure relate to an article comprising a reinforced glass mat. In some embodiments, the reinforced glass mat includes a glass mat and a reinforcement material. In some embodiments, the glass mat includes a web of glass fibers. In some embodiments, the reinforcement material is embedded into the web of glass fibers of the glass mat. In some embodiments, the reinforced glass mat includes a sufficient amount of the reinforcement material, so as to result in a nail shank shear resistance of 13 lbs to 17 lbs, when the article is tested according to ASTM 1761 at 140° F. Methods of making the article, specific embodiments of the reinforcement material in the form of a polymeric binder, and methods of forming a roofing shingle from the article are also disclosed.