MODE OF EVALUATION OF FATIGUE OF ASPHALT CONCRETE AT CYCLICAL DYNAMIC IMPACTS Russian patent published in 2007 - IPC G01N3/32 

FIELD: the invention refers to measuring technique namely to modes of testing materials in particular of asphalt concrete and organic-mineral mixtures on fatigue at cyclical dynamic impacts.

SUBSTANCE: the mode of evaluation of fatigue of asphalt concrete at cyclical dynamic impacts includes fastening of the sample, weighting of a cyclical bending with a sinusoidal applied load, registration of bending deformations and the analyze of fatigue durability according to relation module of elasticity-frequency of weighting-temperature. The fastening of the sample is fulfilled by jamming along the edges, the load is applied to the center of the sample to the maximum at sequential weighting in specific regimes. Duration and amplitudes of weighting is defined according to quantity asset of a defined frequency range into the common frequency spectrum of transport vehicles' impacting on asphalt concrete pavement.

EFFECT: increases accuracy and reliability of results.

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