Method for cutting concrete block along curved cutting surface

The method for cutting concrete blocks along curved cross-sections addresses the challenge of separating radioactive waste by using a cutting device with rail sections and a wire saw, achieving efficient waste separation and cost reduction in heavy water reactor decommissioning.

WO2026121867A1 Publication Date: 2026-06-11KOREA HYDRO & NUCLEAR POWER CO LTD +2

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
KOREA HYDRO & NUCLEAR POWER CO LTD
Filing Date
2025-12-04
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Existing methods for removing bio-shielding concrete in heavy water reactors result in large-scale cutting, leading to mixed radioactive waste and self-disposal concrete, necessitating a method for finely divided separation of radioactive waste.

Method used

A method for cutting concrete blocks along a curved cross-section using a cutting device with multiple rail sections and a wire saw, allowing precise cutting along curved boundaries defined by radiation levels.

🎯Benefits of technology

Enables efficient separation of radioactive waste from non-contaminated portions, reducing disposal volume, minimizing secondary contamination, and lowering decommissioning costs by allowing precise cutting within limited spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a method for cutting a concrete block along a curved cutting surface, the method comprising the steps of: establishing a cutting scheme including a curved cutting surface for a concrete block; seating the concrete block on a seating portion of a cutting device; and cutting the concrete block while moving the concrete block in an X-axis and a Y-axis.
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