Concrete material, construction element for a thermal insulation, and brick-shaped thermally insulating element, each using the concrete material

• US 8,991,124 B2
• Filed: 10/12/2009
• Issued: 03/31/2015
• Est. Priority Date: 10/17/2008
• Status: Active Grant

• Current Assignee: Schöck Bauteile GmbH
• Original Assignee: Schöck Bauteile GmbH
• Inventors: Braasch, Harald
• Primary Examiner(s): WENDELL, MARK R
• Application Number:
  US12/577,311
• Publication Number:
  US 20100095616A1
• Time in Patent Office: 1,996 Days
• Field of Search: 523/091.7, 522/238, 106/733, 106/644, 106/638
• US Class Current: 52/309.17
• CPC Class Codes: C04B 14/06 Quartz; Sand
• CPC Class Codes: C04B 14/14 Minerals of vulcanic origin granite C04B14/048
• CPC Class Codes: C04B 14/24 porous, e.g. foamed glass
• CPC Class Codes: C04B 14/301 porous or hollow
• CPC Class Codes: C04B 14/305 Titanium oxide, e.g. titanates
• CPC Class Codes: C04B 14/48 Metal
• CPC Class Codes: C04B 18/08 Flue dust , i.e. fly ash
• CPC Class Codes: C04B 18/146 Silica fume
• CPC Class Codes: C04B 20/0076 characterised by the grain distribution
• CPC Class Codes: C04B 2111/1056 Silica-free or very low silica-content materials
• CPC Class Codes: C04B 2111/28 Fire resistance, i.e. materials resistant to accidental fires or high temperatures
• CPC Class Codes: C04B 2201/50 for the mechanical strength
• CPC Class Codes: C04B 26/10 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C04B 32/02 with reinforcements contains no documents; reinforcing elements E04C5/00
• CPC Class Codes: C04B 7/02 Portland cement
• CPC Class Codes: E04B 1/0038 Anchoring devices specially adapted therefor with means for preventing cold bridging
• CPC Class Codes: E04B 2001/7679 Means preventing cold bridging at the junction of an exterior wall with an interior wall or a floor
• CPC Class Codes: Y02W 30/91 Use of waste materials as fillers for mortars or concrete

Abstract

A concrete material, particularly for concrete compression elements transmitting compressive forces, to be used in a structural element as the thermal insulation in structural engineering, made of a high-strength concrete in the strength class C55 or higher, with the concrete being embodied as a thermally insulating, load-bearing material including titanium minerals as additives. Additionally, a structural element for thermal insulation and a brick-shaped thermally insulating element, each using said concrete material, are provided.

Claims

1. A structural element for thermally insulating two concrete components (2, 3), the structural element (1) comprising an insulating body (4) and reinforcing elements (5, 6, 7) adapted to be connected to the two concrete components to transmit at least one of forces or momentums between the two components, with one of the reinforcing elements comprising a compression element (7) for transmitting horizontal compressive forces and that is adapted to be connected to the two concrete components, the compression element (7) comprises a high-strength concrete having a strength of 55 N/mm² or higher, the concrete is embodied as a thermally insulating, load-bearing material and includes micro-silica sand as a filler, and ilmenite as an additive, and the high-strength concrete comprises a percentage of siliceous sand amounting to less than 10% by weight.

2. The structural element according to claim 1, wherein the ilmenite is present in a percentage of at least one of approximately one-third of the concrete by volume or a weight portion amounting to approximately 50% or more.

3. The structural element according to claim 1, wherein the high-strength concrete comprises a percentage of siliceous sand amounting to about 0% by weight.

4. The structural element according to claim 1, wherein the ilmenite acting as the additive for the high-strength concrete has a grain size of no more than 0.5 mm.

5. The structural element according to claim 1, wherein fibers are mixed into the concrete.

6. The structural element according to claim 5, wherein the fibers are steel fibers.

7. The structural element according to claim 1, wherein the concrete includes at least cement as a binder.

8. The structural element according to claim 1, wherein the concrete includes at least a reaction resin as a binder.

9. The structural element according to claim 1, wherein the concrete material is configured as a thermally insulating load-bearing material in concrete construction adapted for use in a connection area of buildings to posts supporting them.

10. The concrete material according to claim 1, wherein the concrete strength is 180 N/mm² or higher.