The present invention relates to a novel chemical composition for removing oil from asphalt shingles. The composition preferably comprises approximately 48% water, 48% fuel such as gasoline or diesel, 2% alcohol, 1.5% citrus and 0.5% enzyme by weight. The composition is used in a system comprising a plurality of tanks that operate under a controlled heat and pressure to breakdown oil components within the shingles. The system uses a closed loop process to feed back the residual ingredients of the composition for reuse. Once through the system, the oil is removed from the asphalt shingles, thereby preventing oil from leeching into the groundwater when the asphalt shingles are disposed of.

A mixture made from or containing T1) from 99 wt % to 75 wt % of bitumen, and T2) from 1 wt % to 25 wt % of a polymer composition made from or containing A) 5-35% by weight of a propylene ethylene copolymer; B) 20-50% by weight of an ethylene homopolymer; and C) 30-60% by weight of a terpolymer of ethylene, propylene and 1-butene derived units.

A mixture made from or containing T1) from 99 wt % to 75 wt % of bitumen, and T2) from 1 wt % to 25 wt % of a polymer composition made from or containing A) 5-35% by weight of a propylene homopolymer; B) 20-50% by weight of an ethylene homopolymer; and C) 30-60% by weight of a terpolymer of ethylene, propylene, and 1-butene.

The present invention is directed to a reinforced building block made of autoclaved aerated concrete (AAC) comprising rebars formed essentially from A) at least one fibrous carrier and B) and a hardened composition formed from B1) at least one epoxy compound and B2) at least one diamine and/or polyamine in a stoichiometric ratio of the epoxy compound B1) to the diamine and/or polyamine component B2) of 0.8:1 to 2:1, as matrix material, and C) optionally further auxiliaries and additives and to methods of production thereof

A method for production of coated mineral grit for the manufacture of coating elements with a bituminous support, or with a support comprising a vinyl or acrylic adhesive, for roofing of buildings, the method includes: adding rough mineral grit to a mixer together with a first treatment mixture; mixing the rough mineral grit and the first treatment mixture until a coated mineral grit is obtained; heating the coated mineral grit to a predetermined firing temperature (Tc); and after heating the coated mineral grit, cooling the coated mineral grit to a predetermined intermediate cooling temperature (Tri). The first treatment mixture comprises: water; at least one pigment; at least one selected from the group consisting of sodium silicate and potassium silicate; kaolin; and at least one selected from the group consisting of an organo-siloxane and an organo-silane.

A membrane roofing system that includes a waterproof layer that protects an insulation layer and a granule coupled to the waterproof layer. The granule has a 60% or greater reflectivity that reduces transmission of ultraviolet light to the waterproof layer. The granule is coated in a fluorinated acrylic copolymer that resists adsorption and absorption of asphaltic chemicals by the granule from the waterproof layer.

A fibre cement composition comprising at least one hydraulic binder, an organic processing aid fibre as the sole organic fibre within the fibre cement composition, and at least one inorganic fibre, which exhibits excellent fire resistance and mechanical properties.

Roofing granules comprising agglomerated inorganic material, and building materials, such as shingles, that include such roofing granules. By fabricating roofing granules from agglomerating inorganic material it is possible to tailor the particle size distribution so as to provide optimal shingle surface coverage, thus reducing shingle weight and usage of raw materials. Additionally, the use of agglomeration permits the utilization of by-products from conventional granule production processes.

Embodiments may include a coated granule for roofing systems. The coated granule may include an aluminum silicate granule and a coating disposed on the aluminum silicate granule. The coating may include a copolymer and a siloxane-based or a silane-based compound. The copolymer may be a cationic fluorinated (meth)acrylic copolymer. The aluminum silicate granule may have a particle size in a range from 0.2 mm to 2.4 mm. The aluminum silicate granule may have a 65% or greater reflectivity. The coated granule may repel oil and maintain its reflectivity better than with other techniques.

This invention relates to manufacturing briquettes, pellets and shapes from recycled asphaltic limestone powder derived from waste residential roofing products. Briquettes and pellets are manufactured through a densification process at varying temperatures, creating recycled asphalt pellets, asphalt limestone pellets and bio mass and coal fines briquettes. Various shapes, including curbs and posts, are manufactured through heat and pressure in molds. Seawalls, walkways and wall panels are manufactured by blending asphaltic limestone powders with polymer resins and extruded or pultruded into shapes.