Unified performance test for viscoelastic materials

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United States of America Patent

PATENT NO 12098988
APP PUB NO 20210156780A1
SERIAL NO

17164306

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Abstract

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The use of recycled materials can have significant economic value. With the increasing quantity of recycled material used in viscoelastic materials, especially asphalt mixture, understanding how they interact with original materials to produce a mixture that performs successfully, becomes critical. Currently, the technology to determine the effect of additives on the performance of asphalt mixture is lacking. The present invention relates to a new unified methodology for mechanical testing of asphalt mixture and other viscoelastic materials that improves the current practice in speed, convenience, and accuracy. A new improved specimen mounting method on Dynamic Shear Rheometer (DSR), a new recovery method for fine portion of asphalt mixture, and three new tests for the performance of recovered material using DSR is disclosed. The new methods provide performance grading of asphalt mixtures that is new to the industry and provide necessary tools for determining the effect of recycled materials on performance.

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Patent Owner(s)

Patent OwnerAddress
MOHSENI ALAEDDINBETHESDA MD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mohseni, Alaeddin Bethesda, US 4 4

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