checking of mixing of bitumen in aggreate mixing
method of test for optimum bitumen content (obc) - Caltrans - State of .for open graded friction course (OGFC) by examining the amount of asphalt drain down of an aggregate and unmodified asphalt binder mixture. This OBC.checking of mixing of bitumen in aggreate mixing,department of transportation - Caltrans - State of Californiamixed (lab-mixed) and field-mixed hot mix asphalt (HMA) specimens. This test method . California Test 206 – Specific Gravity and Absorption of Coarse Aggregate .. Check: To check the binder percentage by weight of total mix, substitute.4 mix design - INIn Asphalt Mixture, binder and aggregate are blended together in precise .. produced asphalt mixture to verify proper density, air voids and VMA from.