PRESSURIZATION PERCOLATOR FOR ASPHALT MIXTURE, AND SEPARATION RESISTANCE EVALUATION METHOD FOR ASPHALT MIXTURE

摘要

PROBLEM TO BE SOLVED: To quickly and properly evaluate separation resistance of an asphalt mixture in the asphalt mixture, by quickly reproducing a separation condition from an aggregate of asphalt generated by an action of water in the asphalt mixture, and by conducting a test for evaluating the separation resistance of the asphalt mixture reproduced with the separation condition.;SOLUTION: This percolator 1 for the asphalt mixture applies percolation pressure P1 onto a test face of a specimen object 2. Side pressure P2 is set therein higher by prescribed pressure than the percolation pressure P1, and a rubber sleeve 3a is pressed to a side face of the specimen 2 by the side pressure P2 to restrain easily and surely water from leaking from a side wall part of the specimen 2. Respectives of water for applying the percolation pressure P1 and the side pressure P2 are heated to respective prescribed temperatures by a nozzle heater 15 and a cartridge heater 13, when applying the percolation pressure P1 and the side pressure P2. The percolation pressure P1 is changed with a prescribed period.;COPYRIGHT: (C)2005,JPO&NCIPI