Abstract: Core element for sandwich elements, wherein the core element has at least two hemisphere panels which are combined with one another, wherein each hemisphere panel has, between planar portions, and spaced apart from one another, uniform hemispherical elevations, wherein the two or in each case two hemisphere panels face one another by way of their elevations, wherein, with two or in each case two hemisphere panels combined with one another, the elevations of one hemisphere panel each bear with their apexes or apex surfaces against a planar portion of the other hemisphere panel, and wherein two hemisphere panels are connected to one another by virtue of the elevations being connected, in the region of their apexes or apex surfaces, to the planar portion of the other or another hemisphere panel against which they bear. Moreover, the invention also relates to the use of a core element and to a method for producing a core element.

Abstract: A system, comprising a panel comprising a tetrahedral-octahedral honeycomb lattice, a skin layer formed on a first side of the lattice, having an aperture formed therein configured to receive a fastener, and a fastening assembly comprising a fastener configured to be mounted to the panel when the panel is fixed to an adjacent component, and a hardening material. Corresponding systems and methods also are disclosed.

Abstract: An insulating element for thermally insulating spaces, including closed cells, in which a first and a second group of closed cells are formed by first or second recesses in a first or second flat element and the first and the second flat elements form first or second connection regions between recesses adjacent to the edges of the openings, to which respectively a flat covering element closing the openings of a plurality of first recesses is bonded on a front side of the flat element. The second recesses are arranged between the first recesses on a rear side of the first flat element and the first recesses are arranged between the second recesses on a rear side of the second flat element such that the space remaining of the first and second recesses between the first and the second flat elements amounts to less than 50% of the space enclosed by the first and second recesses.

Abstract: An inner fixed structure (IFS) seal arrangement may comprise an IFS comprising an inner skin, and outer skin, and a cellular core located between the inner skin and the outer skin, an IFS seal, a seal retainer configured to retain the IFS seal, and a cooling flow channel disposed between the outer skin and the seal retainer.

Abstract: A ventilation arrangement for an annular cavity located about the core engine of a gas turbine, the annular cavity having an axis and an inner wall located about the axis and an outer wall radially spaced from the inner wall, the outer wall being interposed between the cavity and an engine bypass duct. The ventilation arrangement comprises a plurality of ventilation ducts passing through said outer wall and providing for fluid communication between the bypass duct and the cavity and a flow diverter arranged at an oblique angle to a radial alignment with said axis so as to induce in the ventilation flow from said ducts a vortical flow within the cavity about the inner wall such that said vortical flow has a vortex width of magnitude substantially equal to that of a diameter of the annular cavity. The ducts may be shaped to provide the flow diverter. The internal geometry of the ducts may provide for a sudden expansion to control the exit profile of the flow into the cavity.

Abstract: A lining board includes: a plate-like support structure which is made of a multi-layered fiber sheet and has a plurality of hollows; and an upper plate which is attached to the top of the support structure and has a plurality of LED leading lightings formed on the top of the upper plate. The honeycomb-structured lining board including fiber sheets stacked with a predetermined thickness has advantages of lightness, high impact-resistance and high noise-proofing due to high sound absorptiveness.

Abstract: A composite sandwich structure comprises a core sandwiched between composite laminate facesheets. The core includes a plurality of core sections spliced together at joints that incorporate integral features for arresting the propagation of irregularities in the facesheets.

Abstract: A panel which includes, among protrusions protruding from a predetermined reference surface, flat sections being flush with the reference surface, and recesses being recessed from the reference surface, the protrusions, and the flat sections or recesses, wherein; when the panel includes the flat sections, the entire periphery of each of the protrusions is surrounded by the flat sections, and the entire periphery of each of the flat sections is surrounded by the protrusions, while when the panel includes the recesses, the entire periphery of each of the protrusions is surrounded by the recesses, and the entire periphery of each of the recesses is surrounded by the protrusions.

Abstract: Light weight fiber-reinforced polymeric (FRP) structural building panels and panel assemblies, sized and configured for construction of non-portable wall structures permanently fixed to the ground, optionally tying overlying structure to an underlying footer through such panels and panel assemblies. Fiber schedule and fiber orientation in the panels provide enhanced properties of the panels. Fibers are typically oriented within 15 degrees of a top-to-bottom direction in the panel providing, in part, enhanced top-to-bottom crush strength of a panel/wall per length dimension related to mass of the panel/wall per unit length and/or limited deflection of the panel/wall. Panels of the invention also have a bias to deflect toward the surface of the panel which faces outwardly of the building, toward the backfill soil which faces the panel, outside the building.

Abstract: Light weight fiber-reinforced polymeric (FRP) structural building panels and panel assemblies, sized and configured for construction of wall structures. Fiber schedule and orientation in the panels provide enhanced properties of strength of a panel/wall per unit dimension relative to FRP layer thickness and/or mass of the panel/wall per unit dimension. Panel profiles as molded having draft angles, and molds to make such profiles, enhance panel fabrication.

Abstract: An improved cellular building block including a middle beam and two legs. The cellular building block having the first leg coupled to the middle beam such that the leg is perpendicular to the middle beam and a second leg coupled to the middle beam such that the leg is perpendicular to the middle beam and spaced apart from the first leg, the first leg and the second leg having an inside edge and an outside edge. Having at least one barb located on the inside edge of the first leg and on the inside edge of the second leg and further configured to lock into a recess. The cellular building blocks connect in a two dimensional or three dimensional pattern and a produce a structured material that holds itself together and exhibits beneficial characteristics.

Abstract: A drainage mat for use in building structures, particularly in exterior walls and roofing, to improve drainage and ventilation within such structures. The drainage mat includes a web of extruded polymer monofilaments that are heat welded at junctions to form a matrix of tangled monofilaments. The web includes on its front face an alternating array of ridges and planar regions, each ridge having a substantially trapezoidal shape with a top surface and a base, the width of the top surface being less than the width of the base.

Abstract: The present invention relates to a composite honeycomb sandwich panel equipped with a composite rail aluminum I-shaped side insert, and more specifically, to an improved structure of a hybrid composite sandwich panel having a laminated composite skin and an aluminum honeycomb core which is mechanically improved in terms of assembly, strength and weight. The composite honeycomb sandwich panel includes: a planar honeycomb core; a composite rail which is wrapped around the periphery of the honeycomb core and has therein a hollow space that is open on opposite sides thereof; an I-shaped center rail insert which is fitted into the hollow space of the composite rail so that the sandwich panel is connected to an adjacent sandwich panel by bolting through the I-shaped center rail insert; and laminated composite skins which cover upper and lower surfaces of the honeycomb core having the composite rail wrapped around.

Abstract: A self supporting panel system used to fabricate ceilings, floors, walls, or roofs. The panel system is assembled from a plurality of panels, each having a core that is sandwiched between opposing plate members. In a preferred embodiment, the core of each panel includes a unifying material to enhance the load bearing capacity of the panel.

Abstract: Light weight fiber-reinforced polymeric (FRP) structural building panels and panel assemblies, sized and configured for construction of wall structures permanently tied to the ground, optionally tying overlying structure to an underlying wall using such panels and panel assemblies. Fiber schedule and orientation in the panels provide enhanced properties of strength of a panel/wall per unit dimension relative to FRP layer thickness and/or mass of the panel/wall per unit dimension.

Abstract: The present invention concerns a method of forming a multi-ply core component. A mold press is provided having an upper die and a lower die defining a mold cavity. At least one of the upper die and the lower die has a plurality of protrusions. A first wood composite board and a second wood composite board are disposed within the mold cavity. The first and second boards are fused proximate the plurality of protrusions by compressing the boards in the mold cavity through application of heat and pressure.

Abstract: An insert nut is provided in a panel member made from a core member with a honeycomb structure, and a first and second surface plate and made from fiber reinforced plastic. A reinforcing member is provided at the location where the insert nut is provided in the core member. The insert nut is housed in a hole in the first surface plate, a hole in the first metal plate, and a hole in the reinforcing member, and fixedly attached with an adhesive. An inner circumferential surface of the hole in the first metal plate and an outer circumferential surface of the insert nut are in contact.

Abstract: A three-dimensional support structure is provided and includes a single sheet of material that is folded into a repeating pattern of cells. Each of the cells is formed by first and second spaced-apart endwalls and first and second sloped sidewalls spanning between the endwalls. Each endwall comprises two plies of material while each sidewall comprises a single ply of material. The first and second sidewalls are adjoined at a folded edge. The cells are aligned such that the first endwall of one cell from the repeating pattern abuts the second endwall of an adjacent cell of the repeating pattern to form a four-ply wall of the material. A first liner may be attached to a first side of the folded material and a second liner may be attached to a second side of the folded material.

Abstract: Disclosed herein are multiwall sheets and methods for making the same. In one embodiment, a multiwall sheet comprises: main layers and transverse walls. The multiwall sheet comprises: a total thickness of greater than or equal to about 45 mm, a weight of greater than or equal to about 4.5 kg/m2, and/or greater than or equal to about 8 cells and a U-value of less than or equal to about 1.2 W/m2K. The multiwall sheet further comprises greater than 75 wt % branched polycarbonate resin, based upon a total weight of the multiwall sheet.

Abstract: Light weight fiber-reinforced polymeric (FRP) structural building panels and panel assemblies, sized and configured for construction of wall structures. Fiber schedule, layer securement, and orientation in the panels provide enhanced properties of strength of a panel/wall per unit dimension relative to FRP layer thickness and/or mass of the panel/wall per unit dimension.

Abstract: Wall panels and building walls, comprising inner and outer layers, and spaced reinforcing webs extending between the inner and outer layers. Optionally studs extend inwardly from the inner layer away from the outer layer with one of the stud legs on each stud being aligned with one of the reinforcing webs, or the building load delivered to an underlying footer varies less than 50% per 10 foot length of the wall, or height of the wall varies no more than 0.25 inch over a 40 foot length of the wall. The resulting wall panel can provide tough, water-proof, otherwise weather-proof, building systems and buildings.

Abstract: The invention relates to an aircraft side fairing, with a component (9) in the form of individual hollow chambers (12, 13, 14) which are arranged essentially in a preferably curved plane and are arranged between two cover layers (1, 2), wherein a gastight film which completely encases the component (9) with the hollow chambers (12, 13, 14) is provided and, after application of a vacuum to evacuate the hollow chambers (12, 13, 14), surrounds the component (9) with the hollow chambers in a gastight manner.

Abstract: A tough, water-proof building system, and methods of making the system elements and constructing buildings, which provides wall, ceiling, and floor structural panels and corresponding walls, ceilings, and floors. The walls can be designed to have vertical and horizontal strengths sufficient to be used in place of concrete, as an engineered solution, both above grade and below-grade, including in severe weather conditions, such that no concrete need be used except for floor slabs. Panels have inner and outer layers, and structurally reinforcing members. Structurally-reinforcing members extend, typically as a layer and/or stud, the full height of a wall, at spaced locations along the length of the wall. Spaces between the structurally reinforcing members are optionally filled with rigid foam. An optional reinforcing stud is attached to, or overlaid by, the inner layer, and extends inwardly into the building from what is otherwise the inner surface of the building panel.

Abstract: A vented honeycomb structure with a plurality of honeycomb cells arranged in a hierarchical order and having a plurality of truss walls, each truss wall including a plurality of members. The vented honeycomb structure is fabricated by joining a plurality of sheets of trusses using any one of an expansion, a corrugation, and a slotting process. Fabrication can also occur by deposition, casting, additive, extrusion, or aligning and joining methods. The honeycomb cells, truss walls, truss wall openings, and truss wall members can be functionally graded.

Abstract: A panel has an exterior face thereof adapted for attachment to a support frame and an interior face thereof adapted for defining a boundary of a compartment. The panel includes a core encapsulated within a panel frame of reinforced phenolic material, the core having first and second faces thereof, and a periphery. The panel frame includes first and second skins attached to the first and second faces of the core. One or more closeouts are disposed between the skins about the periphery of the core, with the one or more closeouts being attached to the first and second skins. A heating element is adjacent the interior face of the panel.

Abstract: A method of constructing a building or building appurtenance, optionally without structural use of concrete except for floor slabs. The method contemplates excavating a hole to establish a natural base on which the structure is to be constructed, establishing layout locations where upright walls or other supports of the structure are to be erected, establishing a fabricated footer, optionally a fiber-reinforced polymeric footer, along the laid-out locations of the supports, placing pre-fabricated load-bearing fiber-reinforced polymeric building panels or other supports on the fabricated footer, and connecting the pre-fabricated wall panels or other supports to each other according to the structure plan thereby developing load-bearing walls or other supports, and erecting overlying structure on the load-bearing walls or other supports.

Abstract: A tough, water-proof building system provides wall, ceiling, and floor structures, as well as accessories. The walls can be designed to have vertical and horizontal strengths sufficient to be used in place of concrete, as an engineered solution, both above grade and below-grade, including in severe weather conditions. Walls have inner and outer layers, and structurally reinforcing members extending, typically as a layer and/or stud, the full height of the wall, at spaced locations along the length of the wall. The spaces between the structurally reinforcing members are optionally filled with insulating foam. An optional reinforcing stud is attached to, or overlaid by, the inner layer, and extends inwardly into the building from what is otherwise the inner surface of the building panel/wall panel. A building floor can be supported from the load-bearing wall, at locations on the floor support members which are below the top of the load-bearing wall.

Abstract: Methods of fabricating wall panels by generally continuously pultruding a wall panel profile comprising inner and outer layers, and spaced reinforcing webs and/or foam extending between the inner and outer layers, optionally studs extending inwardly from the inner layer, away from the outer layer. The so-continuously pultruded wall panel optionally has male and a female edges. The wall panel is periodically cut for wall panel height, thereby creating an ongoing stream of cut wall panels. The panels are advanced through a corner index station, and indexed at right angles while maintaining orientation of the panels. The wall panels leave the indexing station edge-to-edge. Resin is applied to facing edges of adjacent wall panels. Adjacent wall panels are joined to each other at the facing edges, to make a generally continuous wall panel. The so-joined wall panel is cut to desired lengths.

Abstract: A tough, water-proof building panel, made of fiber-reinforced polymer, is useful in making structural walls, ceilings, and floors of buildings. Upstanding such walls can have vertical and horizontal strengths sufficient to be used in place of concrete, as an engineered solution, both above grade and below-grade, including in severe weather conditions. Panels effectively have inner and outer layers, and structurally reinforcing members. Structurally-reinforcing members extend, typically as layer and/or stud, the full height of the wall panel, at spaced locations along the length of the panel. Spaces between the structurally reinforcing members are optionally filled with rigid thermally insulating foam. Optional reinforcing studs are attached to, or overlaid by, the inner layer, and extend inwardly into the building from what is otherwise the inner surface of the building panel. Panels can be made by e.g. assembling pre-fabricated blocks and/or webs, by evacuating a mold, and by pultrusion.

Abstract: A waterproof heat-insulation construction method aims to spread a layer of waterproof heat-insulation powder through a waterproof heat-insulation module on a work surface to form waterproof and heat insulation effect thereof. The method comprises the steps of: first, anchoring at least one waterproof heat-insulation module which can be arranged on the work surface; then holding the waterproof heat-insulation powder in the waterproof heat-insulation module in contact with the work surface to form a waterproof heat-insulation layer. The invention also provides a corresponding waterproof heat-insulation module which can be constructed in a modular fashion to achieve waterproof and heat insulation effect for buildings.

Abstract: A self supporting panel system used to fabricate ceilings, floors, walls, or roofs. The panel system is assembled from a plurality of panels, each having a core that is sandwiched between opposing plate members. In a preferred embodiment, the core of each panel includes a unifying material to enhance the load bearing capacity of the panel.

Abstract: A fiber reinforced core panel having natural contour contains a series of adjacent low density strips where the longitudinal axes of the low density strips are substantially parallel. The major face of each strip is disposed within the first or second side of the core panel. The core panel also contains a continuous fibrous reinforcement sheet which is threaded through the low density strips such that the fibrous reinforcement sheet is disposed between adjacent strips and adjacent to the major faces of the low density strips. The fiber reinforced core panel contains a natural contour in the direction perpendicular to the longitudinal axes of the low density strips, a natural contour in the direction parallel to the longitudinal axes of the low density strips, or a natural contour in both the directions parallel and perpendicular to the longitudinal axes of the low density strips.

Abstract: The present invention concerns a method of forming a multi-ply core component. A mold press is provided having an upper die and a lower die defining a mold cavity. At least one of the upper die and the lower die has a plurality of protrusions. A first wood composite board and a second wood composite board are disposed within the mold cavity. The first and second boards are fused proximate the plurality of protrusions by compressing the boards in the mold cavity through application of heat and pressure.

Abstract: A tough, water-proof building system which provides walls and wall sections for use on upright walls, ceilings, and floors, and appurtenances, as well as accessories which make such structures more versatile. The walls and wall sections can be designed to have vertical and horizontal strengths sufficient to be used in place of concrete, as an engineered solution, both above grade and below-grade, including in severe weather conditions. A wall section has inner and outer layers, and structurally reinforcing members which extend, typically as a layer and/or stud, the full height of the wall section, at spaced locations along the length of the wall section. The spaces between the structurally reinforcing members are optionally filled with rigid foam. An optional reinforcing stud is attached to, or overlaid by, the inner layer, and extends inwardly into the building from what is otherwise the inner surface of the wall or wall section.

Abstract: A composite member with a reinforced rampdown or taper has a composite noodle bonded to an end of a core to fill the taper.

Abstract: A light fixture using LEDs includes a lower skin layer possessing heat transfer properties. A circuit board is affixed to the lower skin layer, and a single LED, or a plurality of LEDs, is electrically connected to the circuit board. The single LED, or plurality of LEDs, when electrically activated, emits light through substantially around a vertical axis. The light fixture also includes a core possessing heat transfer properties that is in thermal contact with the LED and has an interior cavity for the LED. The core is affixed to the lower skin layer, and an upper skin layer, containing a window or windows over the LED or LEDs, is affixed to the core. The LEDs may be white, infrared, ultraviolet, and/or colored and may be mounted on a printed circuit board or individually.

Abstract: A panel structure and a method of forming the panel structure are disclosed. The panel structure typically includes at least one panel associated with a material. The panel structure has been found particularly advantageous for use as an interior panel of an airplane.

Abstract: In one embodiment, a multiwall sheet comprises a first sheet comprising an inner surface and an outer surface, a second sheet comprising a first surface and a second surface; and a rib disposed between the inner surface and the first surface. The outer layer can have surface features and has a surface area of greater than or equal to 140% of a planar, flat, non-profiled surface area for a same unit area.

Abstract: A system and method for providing an outdoor flooring such as a lightweight deck surface, employs a fiber reinforced polymer structural panel with internally tapered plural grid openings therein. A connector is driven into selected openings to enable the panel to be secured to a deck frame, or in the case of an impenetrable deck frame, a series of plates are used with or without pipe stanchions to make a floating or raised floating planar surface. A surfacing material, such as a quarried stone, is attached to the top of the panel, providing a stone deck surface without requiring substantial structural support.

Abstract: This invention relates to a magnetic modular coating for floors and walls, even in wet sites and under water, that is composed of a sole fixing element laid between a magnetic adherence decorative plate and a metallic framework structure (3). Such coating also includes a bi-directional magnetic adherence layer (4) of minimum thickness; a decorative surface layer (5), and an upper rigidifying sheet (6) made up of a laminar unit. Adhesives used can be of any kind suitable to join components together. The modules allow for a fast installation, are easily removable and can be re-used.

Abstract: A tough, water-proof building system provides wall, ceiling, and floor structures, as well as accessories. The walls can be designed to have vertical and horizontal strengths sufficient to be used in place of concrete, as an engineered solution, both above grade and below-grade, including in severe weather conditions. Walls have inner and outer layers, and structurally reinforcing members extending, typically as a layer and/or stud, the full height of the wall, at spaced locations along the length of the wall. The spaces between the structurally reinforcing members are optionally filled with insulating foam. An optional reinforcing stud is attached to, or overlaid by, the inner layer, and extends inwardly into the building from what is otherwise the inner surface of the building panel/wall panel. A building floor can be supported from the load-bearing wall, at locations on the floor support members which are below the top of the load-bearing wall.

Abstract: A tough, water-proof building panel, made of fiber-reinforced polymer, is useful in making structural walls, ceilings, and floors of buildings. Upstanding such walls can have vertical and horizontal strengths sufficient to be used in place of concrete, as an engineered solution, both above grade and below-grade, including in severe weather conditions. Panels effectively have inner and outer layers, and structurally reinforcing members. Structurally-reinforcing members extend, typically as layer and/or stud, the full height of the wall panel, at spaced locations along the length of the panel. Spaces between the structurally reinforcing members are optionally filled with rigid thermally insulating foam. Optional reinforcing studs are attached to, or overlaid by, the inner layer, and extend inwardly into the building from what is otherwise the inner surface of the building panel. Panels can be made by e.g. assembling pre-fabricated blocks and/or webs, by evacuating a mold, and by pultrusion.

Abstract: A tough, water-proof building system, and methods of making the system elements and constructing buildings, which provides wall, ceiling, and floor structural panels and corresponding walls, ceilings, and floors. The walls can be designed to have vertical and horizontal strengths sufficient to be used in place of concrete, as an engineered solution, both above grade and below-grade, including in severe weather conditions, such that no concrete need be used except for floor slabs. Panels have inner and outer layers, and structurally reinforcing members. Structurally-reinforcing members extend, typically as a layer and/or stud, the full height of a wall, at spaced locations along the length of the wall. Spaces between the structurally reinforcing members are optionally filled with rigid foam. An optional reinforcing stud is attached to, or overlaid by, the inner layer, and extends inwardly into the building from what is otherwise the inner surface of the building panel.

Abstract: A beam-like structural component (1) made up of individual parts, comprising a flange (2) and two webs (3, 4) is characterized in that a flange (2) is provided with one web (3, 4) each on its two longitudinal sides, wherein each web is attached to a longitudinal sidewall of the flange (2) preferably by means of an adhesive material, and that the end regions (7) of the webs (3, 4), which end regions are facing away from the flange (2), are planarly interconnected with the surfaces (8, 9) facing each other preferably by means of an adhesive material, wherein the webs (3, 4), in their cross-sections, have in each case the shape of a “stretched S”.

Abstract: A flame retardant panel apparatus, and method, utilize a flame retardant panel, having an exterior and an interior face thereof, with the panel including a panel structure having a primary core encapsulated within a panel frame of reinforced phenolic material, and a layer of flame retardant material attached to the panel structure and extending outwardly therefrom to at least partially define an exterior face of the flame retardant panel. The flame retardant panel is suitable for use in mass transit conveyances, such as subway cars, high speed cars, rail cars, buses, rapid response vehicles, marine vessels, and elevators.

Abstract: A structural element comprises a groove formed in a sheet of foldable material. The groove substantially defines a fold line along which the sheet of material is foldable. At least one tab and at least one recess may be formed in the groove. The tab may be positioned on a side of the groove opposite the recess. The tab and recess may be oriented such that the tab is receivable within the recess positioned on an opposite side of the groove. The tab and recess may form an internal finger joint when the material is folded along the fold line.

Abstract: The present invention concerns a method of forming a multi-ply core component. A mold press is provided having an upper die and a lower die defining a mold cavity. At least one of the upper die and the lower die has a plurality of protrusions. A first wood composite board and a second wood composite board are disposed within the mold cavity. The first and second boards are fused proximate the plurality of protrusions by compressing the boards in the mold cavity through application of heat and pressure.

Abstract: A composite cellulose element for drywall walls, ceilings and floors of buildings, which is composed of a cellulose-containing material with hollow spaces that are enclosed therein. The composite cellulose element are formed as boards or panels with each board or panel preferably having a plurality of sheets or thin boards forming layers that are affixed together. Several of the layers of sheets or thin boards have a profile of a wave or meander. Numerous hollow spaces are formed within the profile. A plurality of such composite cellulose elements can be connected to one another.

Abstract: A fiber reinforced core panel having a first side and an opposing second side. The core panel contains a series of adjacent low density strips having at least three faces and having a length to width aspect ratio of at least 5:1. The longitudinal axis of the low density strips are substantially parallel and the cross-section of each strip has a major face, a first edge face, and a second edge face. The major face of each strip is disposed within the first or second side of the core panel and the major face of each strip is disposed within an opposite face of the core panel than the major face of the adjacent strips. The core panel also contains a continuous fibrous reinforcement sheet which is threaded through the low density strips such that the fibrous reinforcement sheet is disposed between adjacent strips and adjacent to the major faces of the low density strips.

Abstract: A lightweight multilayer heat reflective concrete cure blanket having a moisture-impervious top outer layer, a moisture-impervious bottom outer layer, and the top and bottom layers sealingly connected to each other at the boundaries of the layers to form a moisture-impervious chamber between the first and second layers. The chamber includes at least one bubble type insulative layer therein, and the bottom surface of the blanket comprises a heat reflective material to reflect heat emanating from the concrete when the blanket is placed over the concrete. In a further embodiment, heat reflective material is applied to at least one inner bubble type layer to reflect additional heat which radiates from the concrete through the insulative layer and back towards the concrete.