Carbon-negative innovative Supplementary Cementitious Material (cnSCM) from concrete waste towards the circular economy: Control of calcium carbonate polymorphs

• Project/Area Number: 25K17664
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 22010:Civil engineering material, execution and construction management-related
• Research Institution: The University of Tokyo
• Principal Investigator: Bui Negoc・Kien 東京大学, 大学院工学系研究科(工学部), 特任研究員 (11007212)
• Project Period (FY): 2025-04-01 – 2027-03-31
• Project Status: Granted (Fiscal Year 2025)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2026: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2025: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: carbonation / cement-based materials / CO2 capture / recycled concrete waste / calcium carbonate

Outline of Research at the Start

This research develops a new eco-friendly supplementary cementitious material by recycling concrete waste and capturing CO2. It aims to reduce cement clinker use, lower carbon emissions, and support sustainable construction practices.