PHASE II REPORT - Caltrans

8.0 PROCEDURE
8.1 Maintain the aggregate, emulsion, water, and additives at the test temperature
77°F (25°C).
8.2 Set up the IKA Werke EUROSTAR ready for test with the control system ready
on the correct measurement configuration. See the Appendix for establishing the signal
flow.
8.3 The amounts of materials shall be quantified by a mix design, from TB-113 or in
a matrix to determine specific mix effects.
8.4 Add 300g of aggregate into the mixing bowl.
8.5 Add the required amount of solid additives, when applicable, and mix well by
hand.
8.6 Add pre-wet water, followed by the liquid additive, when applicable, and mix well
by hand. Pre-wet water refers to the amount of water added to dry aggregate to ensure
that it is moist prior to mix it with emulsion or liquid additive.
8.7 Add the emulsion and quickly blend with the aggregate within 5-10 seconds.
8.8 Within 5 seconds, quickly place the bowl and mix contents in the EUROSTAR,
such that the bottom of the propeller is 0.04-0.08 inches (1-2 mm) above the inside
bottom of the bowl.
8.9 Start the mixer manually and mix for 5 seconds
8.10 Start test and monitor torque.
8.11 Switch off test at 10 minutes or when torque rises to a maximum and then falls
off, which ever comes first.
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