Composite Shuttering Panel for Biocomposite Wall Construction
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Solution Overview
Problem
Traditional methods for constructing biocomposite walls using bioaggregates like hempcrete are slow due to the need for temporary formwork, requiring extensive time for installation, removal, and drying, which limits the ability to create walls with varying densities and delays finishing work.
Innovation Solution
A pre-fabricated composite shuttering panel system using cellulose and/or chaff with binders, allowing for the creation of dual-density, non-load bearing monolithic walls through pre-fabricated panels and wet-mixed formats that integrate after installation, reducing assembly and drying times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional slip-forming method is used to cast biocomposite walls, then the wall structure can be created with temporary formwork, but the construction process becomes slow and requires extensive time for installation, removal, and drying
Solution Approach 1:
The shuttering panels are pre-assembled into complete wall assemblies at the manufacturing facility before delivery to the construction site. This preliminary assembly includes pre-attaching the bioaggregate panels to the framing members and pre-installing insulation panels, eliminating the need for time-consuming on-site formwork installation and allowing immediate installation at the building location
Solution Approach 2:
The wall system is divided into modular components including separate shuttering panels, framing members, insulation panels, and bioaggregate panels that can be independently manufactured and then assembled. This segmentation allows for parallel manufacturing processes and simplifies on-site assembly, significantly reducing construction time compared to traditional monolithic formwork methods
2Ease of manufacture
If traditional slip-forming method is used, then temporary formwork can be installed and removed, but the process creates long time delays before final finishing work can begin on interior and exterior wall surfaces
Solution Approach 1:
The bioaggregate mixture is formulated with modified binding agents and moisture content parameters that enable accelerated curing and drying. The use of specific binders and controlled moisture levels allows the wall assemblies to reach finish-ready state in days rather than weeks or months, eliminating the long drying delays inherent in traditional hempcrete construction
Solution Approach 2:
The wall assemblies are pre-dried and pre-cured in a controlled factory environment before delivery to the construction site. This preliminary drying process begins the curing operation under optimal conditions, significantly reducing the remaining drying time required after installation and allowing finishing work to begin much sooner than with traditional on-site casting methods
3Ease of manufacture
If traditional slip-forming method is used, then bioaggregate can be poured between formworks, but it is difficult to produce a wall with a variety and gradient of material densities between surface and interior mass
Solution Approach 1:
The system uses different panel types with specifically engineered density characteristics for different wall positions. Surface panels are manufactured with higher density for structural integrity and finish quality, while interior panels use lower density for optimal thermal insulation. This local differentiation of material properties achieves the desired density gradient that is difficult to accomplish with traditional monolithic pouring methods
Solution Approach 2:
The wall is constructed from discrete panels that can be independently manufactured with precise density control. Each panel type can be optimized for its specific function (structural, insulating, finish) without affecting other portions of the wall, allowing for precise control of density distribution throughout the wall assembly that cannot be achieved through traditional slip-forming where density varies unpredictably during pouring
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 system enables faster construction of biocomposite walls with improved thermal resistance and integrity by allowing for a range of building possibilities while minimizing installation and drying times, enabling quicker completion of interior and exterior finishes.
Implementation Method 1
a cured composition formed from pieces of cellulose and/or chaff and at least one binder
Data Source
AI summary
A composite wall panel having a front surface, a rear surface, and side surfaces extending therebetween is provided. The panel includes a cured composition of pieces of cellulose and/or chaff and at least one binder. A wall assembly is also provided. The assembly includes: a frame including a plurality of linearly arranged elongated studs having a top end, a bottom end, and a first longitudinal side and a second longitudinal side extending between the respective ends; a plurality of interconnected wall panels mounted to the first side of the elongated studs of the frame to form a first wall portion; a plurality of interconnected panels mounted to the second side of the elongated studs to form a second wall portion; and an insulating layer inserted within a cavity between the first wall portion and the second wall portion.