Recycled concrete aggregates and heavy oil fuel ash for green controlled low strength material
US12252440B2 · kind B2 · utility
0Cited by
8References
18Claims
0Family size
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Key dates
| Filing date | Jul 11, 2022 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Aug 31, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A controlled low strength material has constituents that include a cement, an aggregate, and a water. The aggregate includes concrete demolition waste. The controlled low strength material has a compressive strength that does not exceed 8.3 MPa, measured at 28 days. The controlled low strength material can alternately include a heavy oil fuel ash and the controlled low strength material can have a compressive strength that does not exceed 2.10 MPa, measured at 28 days.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.