Carbonation curing system for hydraulically hardened materials

The carbonation curing system with a carbon dioxide delayed discharge mechanism addresses CO2 leakage by preferentially discharging air, ensuring efficient CO2 utilization and reducing waste in the carbonation curing process.

JP7883534B2Active Publication Date: 2026-07-01KAJIMA CORP
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Patent Information

Application Number
JP2024061664
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-04-05
Publication Date
2026-07-01
Estimated Expiration
2044-04-05

AI Technical Summary

Technical Problem

Conventional carbonation curing systems for hydraulic hardening materials suffer from CO2 leakage, leading to inefficient utilization and waste of CO2 during the carbonation curing process.

Method used

A carbonation curing system equipped with a carbon dioxide delayed discharge mechanism that preferentially discharges air over CO2, utilizing a double-cylinder structure to manage gas flow and maintain higher CO2 concentration within the curing tank.

Benefits of technology

The system effectively reduces CO2 leakage and enhances the utilization of CO2 for carbonation curing by maintaining a higher CO2 concentration within the tank, thereby improving efficiency and reducing waste.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a carbonation curing system for a hydraulic hardened body that enables efficient use of CO2 in a carbonation curing tank for the carbonation curing of the hydraulic hardened body, by reducing the amount of CO2 that leaks from the carbonation curing tank without being used for the carbonation curing of the hydraulic hardened body during CO2 filling into the carbonation curing tank.SOLUTION: A carbonation curing system for a hydraulic hardened body comprises: a carbonation curing tank that accommodates the hydraulic hardened body; a supply unit configured to supply a carbon dioxide-containing gas having a higher CO2 concentration than air into the carbonation curing tank; and a carbon dioxide delayed exhaust mechanism configured to discharge a gas containing at least air and carbon dioxide from the inside to the outside of the carbonation curing tank, and to preferentially discharge air rather than carbon dioxide to the outside of the carbonation curing tank.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

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  • Systems and methods for curing precast concrete products

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