Magnesium Oxide Composite Building Material for Moisture Resistance
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Solution Overview
Problem
Conventional fibre cement building products are susceptible to moisture-related issues, pose health risks due to crystalline silica, and have high manufacturing costs, while lacking desirable properties like durability, water-resistance, and fire-resistance.
Innovation Solution
A building material composed of 40-50% magnesium oxide from iron ore tailings, 5-10% binder agent, and 40-50% fibrous stabilizing agent from timber yard tailings, which can be used for flooring, retaining, and cladding applications, eliminating silica risks and offering enhanced durability and resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wood fibre is used as a predominant material in fibre cement products, then the product is susceptible to moisture-related issues causing warping, twisting, or swelling
Solution Approach 1:
The patent uses a composite material system combining magnesium oxide (40-50%) from iron ore tailings, fibrous stabilizing agent from timber yard tailings (40-50%), and binder agent (5-10%). This composite structure leverages the dimensional stability of magnesium oxide and the stabilizing properties of timber fibres to create a material that maintains ease of installation while achieving superior moisture resistance and eliminating the warping issues associated with wood fibre alone.
2Strength
If cement elements with high crystalline silica content (10-40%) are used in fibre cement products, then the product gains durability and strength, but it poses significant health risks to workers during installation and disassembly
Solution Approach 1:
The patent extracts and eliminates crystalline silica from the material composition entirely, replacing it with magnesium oxide derived from iron ore tailings. This removal of the harmful substance (crystalline silica) maintains the structural integrity and strength requirements through the magnesium oxide and binder agent system, while completely eliminating the health risks associated with silica dust exposure during power tooling operations.
Solution Approach 2:
The patent converts the previously harmful crystalline silica component into a beneficial alternative by using magnesium oxide from iron ore tailings. This substitution maintains the necessary strength and durability properties while transforming the material from a health hazard into a safe, worker-friendly building material that can be installed without protective respiratory equipment.
3Reliability
If conventional fibre cement products are designed to be durable and water-resistant, then they achieve high performance characteristics, but they have relatively higher manufacturing costs
Solution Approach 1:
The patent applies the discarding and recovering principle by utilizing iron ore tailings and timber yard tailings as primary raw materials. These are waste materials from other industrial processes that would otherwise be discarded. By recovering and repurposing these waste streams into valuable building material components, the patent achieves high-performance durable and water-resistant products while significantly reducing raw material costs and eliminating waste disposal expenses.
4Reliability
If conventional fibre cement products provide high fire-resistance and termite resistance, then they meet safety requirements, but they pose health risks due to crystalline silica content
Solution Approach 1:
The patent removes crystalline silica from the formulation entirely, replacing it with magnesium oxide and organic binders. This extraction of the harmful substance maintains fire resistance through the inherent properties of magnesium oxide and the binder system, while eliminating the health hazards associated with silica dust generation during installation and demolition activities.
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 material provides durable, water-resistant, fire-resistant, and termite-resistant products that are safe for installation and environmentally friendly, reducing health risks and manufacturing costs, while maintaining a wood-like appearance and ease of installation.
Implementation Method 1
a cured slurry of the raw material mixture
Data Source
AI summary
A raw material mixture for fabrication of products for flooring, retaining, and/or cladding applications, a product for flooring, retaining, and/or cladding applications, and a method of fabricating a product for flooring, retaining, and/or cladding applications. The raw material mixture comprises 40-50%, by weight, magnesium oxide derived from iron ore tailings/waste; 5-10%, by weight, binder agent; and 40-50%, by weight, fibrous stabilizing agent derived from timber yard tailings/waste.