Abstract: Substrates (e.g., roadways, roofs, walkways) that absorb suns radiation may be undesirably hot (e.g., too hot to use, increased energy costs). Radiation reflecting colored substrates may reduce temperature, but may be impractical (e.g., thickness, use). Radiation reflecting colored coatings (e.g., paints, thermoplastics, polymer coatings, tape) applied on substrate may reduce temperature but have limited lifecycles (e.g., worn off, peel off, lose their color over time). A radiation reflecting colored dry polymer modified cement mixture may be applied as a thin overlay (e.g., thicknesses of approximately ?th inch, thickness between 1/75th to 1/16th inch) on the substrate to provide a long-lasting solution for reducing temperature. The dry polymer modified cement mixture is prepared by mixing a dry polymer modified cement blend (ordinary Portland cement, aggregate, polymer powders and pigments) with water.

Abstract: Roofing substrates, including shingles, provide for protection of the structure it is covering as well as aesthetics. Shingles come in various types including asphalt, clay, and metal. The shingles may have a dry polymer modified cement mixture applied on top of current shingles or may be used to replace certain layers of, for example, asphalt shingles. The dry polymer modified cement may be applied before or after installation. The dry polymer modified cement may be colored to provide desired aesthetics and lower absorption of the sun's radiation (e.g., visible spectrum, infrared spectrum). The dry polymer modified cement may add minimum weight to the shingles while providing protection to the underlying substrate from environmental deterioration and weathering, thus increasing life of the shingle. The dry polymer modified cement mixture is prepared by mixing a dry polymer modified cement blend (ordinary Portland cement, aggregate and polymer powders) with water.

Abstract: Trafficked pavement substrates utilize markings to segregate traffic (e.g., divide lanes traveling in the same direction, divide sides of the road traveling in opposite directions). A dry polymer modified cement mixture may be used to provide the markings. The dry polymer modified cement mixture is prepared by mixing a dry polymer modified cement blend (ordinary Portland cement, aggregate and polymer powders) with water. The location of the lines is identified, and the dry polymer modified cement mixture is applied onto the identified areas as a thin layer. The dry polymer modified cement blend may include polymers to provide colored markings. Glass beads may be embedded into the dry polymer modified mixture before it cures to retroreflect light shined thereon. The trafficked pavement substrate may have troughs formed therein and the dry polymer modified cement markings may be formed therewithin so that the markings are flush.

Abstract: A dry polymer modified cement to receive topical aggregate to form a high friction surface on trafficked pavement substrates (asphalt, concrete). The dry polymer modified cement is a thin overlay that handles the load of traffic in a relatively short time and has a relatively long life cycle. Prior to curing, the dry polymer modified cement also acts as an adhesive layer to receive and hold aggregate that is applied thereto. The dry polymer modified cement is prepared by mixing a cement mix with water where the cement mix includes cement (ordinary Portland cement), dry polymers and aggregate. The aggregate may have gradations that meet the ASTM C144 specification or may have finer gradations to allow for easier penetration of the topical aggregate by the dry polymer modified cement. The high friction surface may be patterned to provide improved performance.

Abstract: A dry polymer cement overlay for trafficked pavement substrates (both asphalt and concrete). The dry polymer cement overlay is a thin overlay that can handle the load of traffic in a relatively short time and has a relatively long life cycle. Moreover, the dry polymer cement overlay can hold aggregate that is applied on the surface of dry polymer cement overlay before it cures in order to provide a friction surface. A stencil is used during application of a dry polymer cement layer to provide a patterned overlay that includes patterns separated by gullies. The patterned dry polymer cement overlay exhibits improved performance including short and long term substrate adhesion, reduced risk of delamination, safety through improved surface runoff and enhanced visibility, improved macro and micro friction, reflective crack management, and withstands higher deflections under heavy loads. The patterned dry polymer cement overlay may also reduce noise and improve aesthetics.

Abstract: Automatically patterning a surface coating applied to a pavement surface without the need to place, remove and continuously clean stencils. The automatic patterning is provided by a matrix of interspersed spray nozzles arranged on parallel bars. Each of the plurality of spray nozzles is capable of blasting out a gas or liquid at the surface coating to create grout lines in the surface coating, where the grout lines form patterns in the surface coating. An actuator is utilized to move the parallel bars back and forth in a first direction while a vehicle traverses the surface coating in a second direction. The combination of the movement provided by the actuator and the movement provided by the vehicle is used to create the direction, angle and length of the grout lines and the patterns formed.

Abstract: A dry polymer modified cement to receive topical aggregate to form a high friction surface on trafficked pavement substrates (asphalt, concrete). The dry polymer modified cement is a thin overlay that handles the load of traffic in a relatively short time and has a relatively long life cycle. Prior to curing, the dry polymer modified cement also acts as an adhesive layer to receive and hold aggregate that is applied thereto. The dry polymer modified cement is prepared by mixing a cement mix with water where the cement mix includes cement (ordinary Portland cement), dry polymers and aggregate. The aggregate may have gradations that meet the ASTM C144 specification or may have finer gradations to allow for easier penetration of the topical aggregate by the dry polymer modified cement. The high friction surface may be patterned to provide improved performance.

Abstract: A dry polymer cement overlay for trafficked pavement substrates (both asphalt and concrete). The dry polymer cement overlay is a thin overlay that can handle the load of traffic in a relatively short time and has a relatively long life cycle. Moreover, the dry polymer cement overlay can hold aggregate that is applied on the surface of dry polymer cement overlay before it cures in order to provide a friction surface. A stencil is used during application of a dry polymer cement layer to provide a patterned overlay that includes patterns separated by gullies. The patterned dry polymer cement overlay exhibits improved performance including short and long term substrate adhesion, reduced risk of delamination, safety through improved surface runoff and enhanced visibility, improved macro and micro friction, reflective crack management, and withstands higher deflections under heavy loads. The patterned dry polymer cement overlay may also reduce noise and improve aesthetics.

Abstract: An impingement heat transfer device for transferring heat between a stream of temperature controlled air and a product wherein an air supply duct and an air return duct have a common wall. A tube has one end communicating with the inside of the air supply duct and another end extending through an opening in the air return duct. Air is circulated to reduce pressure in the air return duct and increase pressure in the air supply duct such that a stream of air flows through and out of the tube and spent air is drawn through the opening encircling the tube into the air return duct.

Abstract: An impingement heat transfer device for transferring heat between a stream of temperature controlled air and a product wherein an air supply duct and an air return duct have a common wall. A tube has one end communicating with the inside of the air supply duct and another end extending through an opening in the air return duct. Air is circulated to reduce pressure in the air return duct and increase pressure in the air supply duct such that a stream of air flows through and out of the tube and spent air is drawn through the opening encircling the tube into the air return duct.