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 high friction surface coating comprising a resin and an aggregate, the aggregate comprising a blend of calcined bauxite and particles of sandstone and/or Tuff. Optionally, the particles of sandstone and/or Tuff in the aggregate may be from the Paleozoic era, including the Carboniferous, Devonian, Silurian, Ordovician and Cambrian periods.

Systems and methods of imprinting concrete having exposed aggregate. The imprinted concrete system comprises a concrete layer, an imprinted layer disposed on the concrete layer, wherein the imprinted layer comprises a decorative aggregate, and has been imprinted with an imprinting tool. In some embodiments, the decorative aggregate may be at least partially exposed.

A composition for treating roads includes a substrate having a coarse texture and being formed from fibers of wood, wood pulp, bamboo, sugar cane, or a combination thereof. The fibers each have a length less than about 25 mm (about 1 inch). The composition further includes an organic solution generated as a waste stream byproduct of a food-processing operation or the distillation of an alcohol. The substrate is at least partially saturated with the organic solution and has a freezing point in the range of −25° Celsius (−13° Fahrenheit) to −35° Celsius (−30° Fahrenheit). The composition may further include a salt or brine solution including two-to-five parts-by-volume of the at least partially saturated substrate, respectively, to eight-to-five parts-by-volume of the salt or brine solution, respectively, thereby resulting respectively in a 20% to 50% modified brine solution.

This invention is in the field of asphalt construction or pavement applications, compositions and methods of use thereof. The invention also relates to methods of asphalt treatment, such as a step of applying onto an asphalt surface, under treatment conditions, a composition containing a biobased ester, at least one monoterpene, propylene glycol methyl ether acetate, a liquid intermediate made from polystyrene foam, sulfuric acid, D-limonene and soy methyl ester; carbon black pigment and styrene-butadiene complex.

A functional device includes in succession: a first protective film on the front face of the device, with Young's modulus (YM) E1 and thermal dilatation coefficient (TDC) CTE1, a first exterior encapsulation film, with YM E2 and TDC CTE2, an interior encapsulation film, with YM E3 and TDC CTE3, a second exterior encapsulation film, with YM E4 and TDC CTE4, a second plate on the rear face of the device, with YM E5 and TDC CTE5, E1 and E5 being similar or identical, E2 and E4 being similar or identical, E1>E2 and E4<E5, CTE1 and CTE5 being similar or identical, CTE2 and CTE4 being similar or identical, CTE1<CTE2 and CTE4>CTE5, and one film of the first exterior encapsulation film, the interior encapsulation film and the second exterior encapsulation film encapsulating the active elements; and method for producing a functional traversable surface.

Methods and apparatus are disclosed for stamping concrete. In one aspect, a stamp includes a top surface having a three dimensional pattern similar to the three dimensional pattern on its bottom surface. When a portion of a first stamp overlaps a portion of a second stamp, at least a portion of the three dimensional pattern on the bottom surface of the first stamp engages with at least a portion of the three dimensional pattern on the top surface of the second. The engagement between the three dimensional designs or patterns locks or registers the first stamp to the second stamp. In some aspects, a handle of the first stamp engages with a slot in the second stamp. In some aspects, a magnet of the first stamp is attracted to a magnet of the second stamp.

Methods and apparatus are disclosed for stamping concrete. In one aspect, a stamp includes a top surface having a three dimensional pattern similar to the three dimensional pattern on its bottom surface. When a portion of a first stamp overlaps a portion of a second stamp, at least a portion of the three dimensional pattern on the bottom surface of the first stamp engages with at least a portion of the three dimensional pattern on the top surface of the second. The engagement between the three dimensional designs or patterns locks or registers the first stamp to the second stamp. In some aspects, a handle of the first stamp engages with a slot in the second stamp. In some aspects, a magnet of the first stamp is attracted to a magnet of the second stamp.

Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder emulsion with sterols.

A method of cutting a microtrench in which the buried utility is exposed by opening an access hole in a roadway above the buried utility using a roadway access hole drill that rotates and vibrates the drill bit. A roadway access hole drill having a down-the-hole jack-hammer drill bit and a motor to rotate the down-the-hole jack-hammer drill.