Manufacturing method for recycled crushed stone for concrete with excellent carbon dioxide fixation capacity
By incorporating fine crushed particles and collected dust into the recycling process, the method effectively produces recycled concrete crushed stone with superior carbon dioxide fixation capacity while maintaining high-quality standards.
JP7768614B1Active Publication Date: 2025-11-12KUROHIME CO LTD
Patent Information
- Application Number
- JP2025032598
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-11-12
- Estimated Expiration
- 2045-03-03
AI Technical Summary
Technical Problem
Existing methods for recycling concrete debris do not effectively fix carbon dioxide, necessitating a more efficient method to utilize concrete debris for carbon dioxide fixation.
Method used
A method involving the mixing of fine crushed particles with a particle size of 0.15 mm or less with crushed material to produce recycled concrete crushed stone, which includes a dust collection step to collect and incorporate crushed dust, resulting in a high carbon dioxide fixation capacity.
Benefits of technology
The produced recycled concrete crushed stone exhibits a high ability to fix carbon dioxide, meeting high-quality standards for recycled aggregate and demonstrating enhanced carbon dioxide fixation capacity.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007768614000001_ABST
Abstract
The present invention provides crushed stone recycled for concrete, which has excellent carbon dioxide fixation capacity, and a method for producing the same. A crushing step of crushing concrete debris to obtain crushed material; a dust collection process for collecting dust generated when crushing the concrete debris in the crushing process and obtaining crushed dust; and a recycled crushed stone obtaining step of mixing the crushed material and the crushed dust to obtain recycled concrete crushed stone. A method for manufacturing recycled concrete crushed stone; Concrete recycled crushed stone containing 0.5% to 8% by mass of components with a particle size of 0.15 mm or less.
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Citation Information
Patent Citations
concrete
JP2004323294A
Concrete and method for producing concrete
JP2012121764A
Carbon dioxide fixation method
JP6964299B2
Manufacturing method of recycled fine aggregate for concrete, and manufacturing method of ready-mix concrete
JP7407491B1
JPP6964299B