Ilmenite Concrete Thermal Decoupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-strength concrete pressure elements in thermal insulation areas between building components exhibit weak heat decoupling properties, despite their increasing popularity and replacement of stainless steel due to cost factors.
Innovation Solution
Incorporating titanium minerals, specifically ilmenite, as an additive in high-strength concrete with reduced quartz sand content, enhancing both thermal insulation and load-bearing capabilities without adverse effects, and using these materials in polymer concrete with reactive resins and hollow aggregates to optimize thermal conductivity and strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional high-strength concrete with quartz sand is used in pressure elements, then load-bearing capacity is maintained, but thermal insulation properties are poor
Solution Approach 1:
The patent changes the material composition parameters by replacing quartz sand with ilmenite (titanium minerals), altering the density and thermal properties of the concrete while maintaining its structural function. This substitution transforms the concrete from a thermally conductive material to one with superior thermal insulation properties.
Solution Approach 2:
The invention creates a composite concrete material combining cement, ilmenite aggregates, and optional steel fibers. This composite approach integrates the high density and strength of ilmenite with the binding properties of cement, achieving both mechanical strength and thermal insulation in a single material system.
2Temperature
If ilmenite is used as aggregate in concrete, then thermal insulation improves by 50%, but material availability decreases due to limited mined ilmenite
Solution Approach 1:
The patent applies ilmenite specifically in the pressure elements where thermal decoupling is most critical, rather than requiring large quantities throughout the entire structure. This localized application maximizes the thermal insulation benefit while minimizing ilmenite consumption.
Solution Approach 2:
The invention leverages ilmenite's multiple properties: its high density provides both structural strength and thermal mass, while its natural abundance as a mining byproduct (used primarily for titanium dioxide production) makes it an accessible resource despite limited dedicated ilmenite mining.
3Quantity of substance
If stainless steel pressure elements are replaced with concrete, then cost decreases, but thermal decoupling performance deteriorates
Solution Approach 1:
The patent modifies the concrete's thermal parameters through ilmenite substitution, transforming it from a thermally conductive material (like conventional concrete or steel) to a thermally insulating material, thereby achieving thermal decoupling while maintaining the cost advantage of concrete over stainless steel.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Significantly improves thermal insulation properties by up to 50% and maintains or increases strength, achieving comparable or better performance than conventional high-strength concrete or stainless steel in pressure elements, while allowing for optimized load-bearing and thermal performance.
Implementation Method 1
Thermal investigations have now revealed that, in the aforementioned area between two structural components, the concrete compression element still represents a weak point in terms of thermal decoupling
Data Source
Figure 1
Figure 2
AI summary
Concrete material comprises a high-strength concrete, which has a strength-class C55 or higher, where the concrete is embodied as a thermally insulating-load-bearing material and includes titanium minerals as an additive. Independent claims are also included for: (1) a structural element (1) for thermally insulating two concrete components (2,3), comprising an insulating body (4) and reinforcing elements (5, 6, 7) adapted to be connected to the two concrete components to transmit forces and/or momentums between the two components, with one of the reinforcing elements comprising a compression element (7) for transmitting compressive forces and that is connected to the two concrete components, where the compression element (7) comprises the concrete material; and (2) a brick-shaped thermally insulating element (11) for application in an area of a wall bottom between a ceiling or a floor plate (22) and a rising building wall (23), comprising at least one load-bearing element (24, 25) made from a high-strength concrete having a strength-class C55 or higher, where the concrete includes titanium minerals as an additive, and at least one insulating body (26, 27, 28) laterally surrounding the load-bearing element.