Rotational Viscometer for Bitumen at Elevated Temperature

Brookfield-type rotational viscometer with thermo container for measuring apparent viscosity of bitumen and polymer modified binders at 135 deg C and higher. Used in PMB plants and refineries.

Specification

A spindle rotates in a heated binder sample, and the torque needed is converted to viscosity in mPa.s. The instrument supports mixing and compaction temperature selection for asphalt mixes. A thermo container holds sample temperature with high stability.

Features

• Digital torque display with auto range
• Thermo container up to 260 deg C
• Selectable spindles and speeds 0.3 to 100 rpm
• Dedicated disposable sample chambers
• Calibrated using standard fluid

Technical Specifications

Viscosity range	100 to 2,000,000 mPa.s depending on spindle
Speed range	0.3 to 100 rpm (18 speeds)
Accuracy	+/- 1.0 percent of full scale
Temperature range	Ambient to 260 deg C
Temperature control	+/- 0.5 deg C
Standards	ASTM D4402, AASHTO T316
Power supply	230 V AC, 50 Hz

Standard Accessories

• Spindle set SC4-21, 27, 29
• Sample chambers
• Thermo container