Mix composition determination method of coarse graded high modulus asphalt concrete with skeleton embedded structure
US9434842B2 · kind B2 · utility
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Key dates
| Filing date | Oct 16, 2012 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Oct 16, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2555/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to mix composition determination method of coarse graded high modulus asphalt concrete with skeleton embedded structure, which belongs to the road engineering design field. The invention use low labeled hard asphalt AH-30# with penetration degree no greater than 30 (0.1 mm); the nominal maximum aggregate size no smaller than 26.5 mm; building mineral aggregate gradation of the mix using course aggregate gap gradation; using gradation design method of asphalt mixture based on closest compact condition to select the optimal oil-stone ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.