Carbon-Sequestering Cladding for Infrastructure
Solution Overview
Problem
Current construction materials and methods fail to effectively reduce carbon dioxide emissions in the atmosphere, particularly in load-bearing structural elements, due to limitations in compressive strength and widespread acceptance of low-carbon alternatives.
Innovation Solution
The development of carbon-sequestering cladding members that can be integrated into or added to infrastructure structures, using materials like low-embodied carbon concrete and bio-organisms, which can capture and store carbon dioxide from the atmosphere, and are designed to be removable and replaceable to maintain structural integrity and carbon sequestration capacity over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If conventional construction materials are used, then structural strength is maintained, but carbon dioxide emissions are not reduced
Solution Approach 1:
The infrastructure element is divided into two functional parts: a structural member that provides load-bearing capacity and a separate carbon-sequestering cladding that captures CO2. This segmentation allows each component to optimize its specific function without compromising the other.
Solution Approach 2:
The invention uses composite construction combining conventional structural materials (concrete, steel) with carbon-sequestering materials (bio-organisms, porous materials). This composite approach enables the structure to simultaneously achieve structural integrity and carbon capture functionality.
2Object-generated harmful factors
If low-carbon materials with bio-organisms are used, then carbon sequestration is improved, but compressive strength decreases
Solution Approach 1:
The cladding is designed as a separate non-load-bearing element that can be applied to the structural member. This allows the use of materials optimized for carbon sequestration without requiring them to bear structural loads, thus avoiding the compressive strength problem.
Solution Approach 2:
Different parts of the infrastructure element have different material properties: the structural member uses high-strength materials for load-bearing, while the cladding uses carbon-sequestering materials for CO2 capture. Each part's material properties are locally optimized for its specific function.
3Strength
If carbon-sequestering cladding is permanently incorporated, then structural integrity is maintained, but carbon sequestration capacity diminishes over time
Solution Approach 1:
The cladding is designed to be removable and replaceable rather than permanently fixed. This dynamic approach allows the carbon-sequestering component to be renewed periodically, restoring its CO2 capture capacity while the permanent structural member maintains structural integrity throughout the infrastructure's life.
Solution Approach 2:
The cladding is treated as a consumable component that can be removed after its carbon sequestration capacity is depleted and replaced with fresh cladding. This allows continuous restoration of carbon capture functionality without affecting the long-term structural integrity of the infrastructure.
4Object-generated harmful factors
If removable cladding is used, then carbon sequestration capacity can be renewed, but device complexity increases
Solution Approach 1:
By separating the cladding from the structural member, the design simplifies the removal and replacement process. The standardized interface between cladding and structural element reduces construction complexity compared to integrated designs.
Solution Approach 2:
The cladding design incorporates multiple functions: carbon sequestration, potential aesthetic value, and protective coverage. This multi-functionality justifies the additional complexity by delivering multiple benefits from a single component.
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
This approach enables the reduction of carbon emissions from construction and infrastructure, allowing for the creation of zero-carbon or carbon-negative infrastructure by continuously renewing the carbon sequestration capacity of the cladding members, while ensuring the structural soundness of the infrastructure elements.
Implementation Method 1
carbon-sequestering cladding members capable of capturing and sequestering carbon from carbon dioxide in atmospheric/ambient air
Data Source
AI summary
Carbon sequestering infrastructure incorporates carbon-sequestering cladding members that are separate and distinct from structural elements configured to carry a structural load of the infrastructure. The cladding is capable of capturing and sequestering carbon from carbon dioxide in atmospheric/ambient air. The cladding may be distinct members having a high carbon capture capacity (but a low compressive strength unsuitable for use in a structural member) attached to structural members having a lower carbon capture capacity (and a higher compressive strength suitable for use in a structural member). The cladding member may be formed as an envelope suitable for use as a form in casting a structural member. Infrastructure elements including cladding may be configured such that the cladding is removable and replaceable after is carbon sequestering capacity is diminished, to allow for carbon sequestration over the entire length of the infrastructure.