Modular Bio-Shield Blocks for Faster Construction and Lower Nuclear Waste
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Solution Overview
Problem
Existing construction methods for nuclear reactor bio-shields are inefficient in terms of cost and time, and generate significant nuclear waste during decommissioning, while also failing to meet specialized requirements for radiation absorption, fire resistance, and physical shock resistance.
Innovation Solution
A modular construction block composed of basalt fibre reinforced polymer composite and concrete, designed to be stackable in three dimensions with interlocking features, allowing for efficient assembly and disassembly, and incorporating a framework that separates concrete into discrete volumes for graded radiation absorption and reduced waste generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional construction methods are used for nuclear reactor bio-shields, then construction can be completed, but the process is inefficient in terms of cost and time
Solution Approach 1:
The bio-shield is divided into modular construction blocks that can be manufactured separately and assembled on-site. Each block contains a framework with cells that are filled with concrete, allowing for parallel manufacturing and streamlined assembly processes that significantly improve construction productivity.
Solution Approach 2:
The framework structure with its array of cells is pre-manufactured off-site before concrete filling. This preliminary preparation of the modular blocks enables faster on-site assembly and reduces construction time while maintaining quality standards.
2Object-affected harmful factors
If traditional bio-shield construction is used, then radiation absorption is achieved, but significant nuclear waste is generated during decommissioning
Solution Approach 1:
The framework divides the concrete into discrete cellular volumes, creating modular segments. During decommissioning, only the highly irradiated portions containing radioactive contaminants need to be removed, while less contaminated framework and concrete sections can be retained and reused, significantly reducing nuclear waste.
Solution Approach 2:
The framework structure creates zones of different radiation exposure within the bio-shield. By maintaining this segmented structure, only locally affected areas require dismantling and waste disposal, rather than requiring complete removal of the entire bio-shield.
3Strength
If conventional construction materials are used, then structural requirements are met, but specialized fire and physical shock requirements are not fulfilled
Solution Approach 1:
The invention combines a fibre-reinforced polymer composite framework with concrete infill. The polymer framework provides superior fire resistance and shock absorption properties compared to traditional steel or concrete alone, while the concrete maintains radiation absorption capabilities. This composite structure reliably meets both structural and specialized performance requirements.
Data Source
AI summary
A modular nuclear shield wall construction block /1, 40 )comprising a framework (30) formed from a basalt fibre reinforced polymer composite and concrete interspersed within the framework, wherein the block is configured to interlock with a corresponding block in one or more dimensions. A method (500) of forming a modular construction block (1, 40); and a method (600) of forming a modular structure are also disclosed.