A method is useful for producing a urethane(meth)acrylate resin composition. The method improves storage stability and reduces the reactivity drift of the composition compared to compositions made by other means from the same starting materials. In particular, it reduces the degradation of TEMPOL in mixtures with branched urethane resins.

This rapid-hardening mortar composition includes: a rapid-hardening admixture; cement; and a fine aggregate, wherein the cement is contained in an amount of 100 parts by mass to 2,000 parts by mass with respect to 100 parts by mass of the rapid-hardening admixture, the rapid-hardening admixture is a composition that contains: calcium aluminate; inorganic sulfate in an amount of 50 parts by mass to 200 parts by mass with respect to 100 parts by mass of the calcium aluminate; and a setting modifier in an amount of 0.1 parts by mass to 10 parts by mass with respect to 100 parts by mass of the calcium aluminate, and an average particle diameter of the calcium aluminate is in a range of 8 μm to 100 μm, and an average particle diameter of the setting modifier is in a range of 5 μm or less.

The present invention relates to a mortar or concrete material comprising cement, water, fine aggregate and coarse aggregate, wherein the fine aggregate is partially replaced by metallic mineral extraction residues (MMERs) not subjected to thermal treatment, with a pH of less than 7, with a particle size of less than 4 mm, and partially stabilised with limestone material that comprises at least 60% calcite with a particle size of less than 63 μm. The present invention also relates to the method for preparing said material and the use thereof to prepare construction materials.

Methods for embedding photocatalytic titanium dioxide in asphalt surfaces to reduce pollutants via photocatalytic reactions are provided herein. One method includes applying an amount of an asphalt surface treatment compound to an upper surface of the asphalt surface, the asphalt surface treatment compound including a mixture of a liquid carrier compound with a titanium dioxide (TiO.sub.2) photocatalyst.

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 μm. The invention also relates to a method for producing and/or renovating road surfaces or asphalt surfaces comprising at least one asphalt surface layer.

Disclosed are asphalt binder compositions and methods for making such compositions with pure sterol:crude sterol blends. The sterol blends improve various rheological properties.

An asphalt concrete composition having improved waterproof performance, and a construction method using the composition. The composition includes 100 parts by weight of virgin asphalt, 5 to 25 parts by weight of styrene isoprene styrene, 5 to 15 parts by weight of petroleum resin, 250 to 1,000 parts by weight of reclaimed asphalt pavement, 1 to 10 parts by of a performance improving agent, 250 to 1,000 parts by weight of virgin aggregate, 30 to 150 parts by weight of fine powder aggregate, and 0.1 to 2 parts by weight of cellulose fiber. The composition's waterproof performance is due to its high cohesion and adhesion. The composition is durable and is not easily rutted, aged and/or stripped. In addition, the composition has a performance grade of PG 82-34, can prevent water penetration and potholes, and enables a placement process to be easily performed at low costs.

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.

Embodiments of a dry mix for producing a concrete composition are provided. The dry mix includes aggregate, cement, and bed ash. The bed ash contains the combustion product of a fluidized bed coal combustion reaction. Additionally, embodiments of a method of preparing the dry mix and embodiments of a method of preparing a concrete composition are provided. The dry mix is also suitable for repairing soil slips, and embodiments of a method of repairing a soil slip are also provided.

A method of slowing an aircraft overrunning a runway, including covering an area adjacent a runway with irregular foamed glass bodies having aspect ratios of about 1:1.9 and diameters of about 10 mm to about 80 mm to define a bed, pouring liquid cement over the foamed glass bodies such that the cement infiltrates at least through the bed, curing the liquid cement to define a composite material of foamed glass bodies in a cementitious matrix, and crushing at least a portion of the composite material with an oncoming aircraft, slowing the aircraft. The composite material is at least 85 volume percent foamed glass bodies. When pouring the cement, the liquid cement flows over and around the foamed glass bodies. The aggregate bodies crush and break up before slip failure occurs when being overrun by an aircraft. The aggregate bodies intersect to define stacking angles of about 35 degrees. The cementitious matrix has a cementitious surface.