Biochar Sandwich Wall Construction With Fiber-Stabilized Slabs
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Solution Overview
Problem
Existing building materials, particularly those made of natural stone, ceramic, or glass, are prone to breakage under tensile and bending loads, especially when designed to be thin and lightweight, and do not effectively utilize carbon to reduce CO2 emissions.
Innovation Solution
Incorporating a biochar-based insulation material with high carbon content between pressure-resistant plates, stabilized by fiber reinforcements, to create a self-supporting wall structure that absorbs compressive forces and acts as a carbon sink, while minimizing thermal expansion and maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If thin and lightweight pressure-resistant panels are used, then weight is reduced and material usage is saved, but tensile and bending load resistance deteriorates
Solution Approach 1:
The patent applies composite materials by combining pressure-resistant panels (natural stone, artificial stone, concrete, ceramics, or glass) with tensile-resistant reinforcement materials (carbon fibers, glass fibers, or stone fibers embedded in temperature-stable binders or resins). This composite structure allows the panels to remain thin and lightweight while gaining enhanced tensile and bending load resistance through the reinforcing fiber network integrated within the panel matrix.
2Quantity of substance
If carbon content in insulation material is increased, then CO2 storage capacity is improved, but thermal insulation performance may deteriorate
Solution Approach 1:
The patent employs porous materials by using biochar as the insulation medium. Biochar possesses a highly porous structure with over 50% carbon content, which provides effective thermal insulation through air trapping in pores while simultaneously serving as a carbon sink. The porosity allows the material to maintain low thermal conductivity despite high carbon content, resolving the contradiction between carbon storage capacity and thermal insulation performance.
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
The solution results in a lightweight, dimensionally stable, and thermally insulating wall construction that reduces CO2 emissions by storing carbon, offering improved load-bearing capacity and thermal performance, while preventing material breakage and thermal bridging.
Implementation Method 1
an insulation material based on biochar or artificially produced coal is used. Biochar is the solid form of carbon, which is formed during the pyrolysis of biomass, which is characterized by its highly porous structure and a carbon content of over 50%
Implementation Method 2
Biochar is the solid form of carbon, which is formed during the pyrolysis of biomass
Implementation Method 3
it is necessary to stabilize the earthenware or ceramic plates against tension and the associated breakage. In addition, on the stone side to be stabilized at the interface between the stone to be stabilized and the insulation layer, the expansion distribution must be set in such a way that its gradient is practically zero
Data Source
AI summary
The invention describes the construction of more or less thin house walls, of which the load-bearing panels are stabilized in such a way that they have an insulating middle layer, the middle layer containing carbon, which is brought in as insulation material by means of suitable binders such as cement, geopolymers, resins or foams or glass. In particular, biochar mortars and biochar foams are used, which with the help of fiber reinforcement of the outer stone slices become self-supporting wall and facade elements, which are able to store more carbon than what is produced in the form of CO2, escaping into the atmosphere. Fiber-stabilized stone disks with an insulating middle layer based on pyrogenic or otherwise manufactured or extracted carbon are constructed symmetrically and dimensioned in such a way that they can absorb loads and buckling forces with a comparatively very low weight. For this reason, in addition to its high carbon content, the insulation material should preferably have sufficient tensile stability.