Department of Civil & Environmental Engineering

Testing Facilities 

 

WCAT is accredited by the American Association of State
Highway and Transportation Officials (AASHTO)under the
Materials Reference Laboratory (MRL) Program.

Asphalt Binder Testing Capabilities
(Conventional and Superpave™)

 

Beading Beam Reometer

AASHTO TP1: Method for determining the flexural creep stiffness of asphalt binders.

Dynamic Shear Rheometer

AASHTO TP5: Method for determining the shear modulus and phase angle of asphalt binders.

Rotational Viscometer

AASHTO TP48: Method for viscosity determination of asphalt binders.

Rolling Thin Film Oven

AASHTO T240: Effect of heat and air on asphalt binders.

Pressure Aging Vessel

AASHTO PP1: Accelerated aging of asphalt binder.

Asphalt Ignition Oven

AASHTO TP308: Determining the asphalt content of hot mix asphalt (HMA's).

Asphalt Mix Testing Capabilities

 

Superpave gyratory compactor

AASHTO TP4: Method for preparing and determining the density of HMA cylinders.

Rice Specific Gravity Setup

AASHTO TP39: Method for determining the maximum specific gravity of loose HMA's.

MTS System

AASHTO TP62: Dynamic modulus of HMA's.
AASHTO T292: Creep compliance and flow characteristics of HMA's resilient modulus of subgrade soils.

CoreLok Device

ASTM D6752/ D6857: HMA and aggragate determination by vacuum bagging.

Aggregate Testing Capabilities

 

Sieve Analysis

AASHTO T27: Sieve analysis of fine and coarse aggregate.

Specific Gravity Setup

AASHTO T84: Specific gravity and absorption of fine aggregate.
AASHTO T85: Specific gravity and absorption of coarse aggregate.

Aggregate Shape Device

ASTM 4791: Flat or elongated particles in coarse aggregate.

Fine Aggregate Angularity

AASHTO T304: Uncompacted void content of fine aggregate.

2-D and 3-D Imaging Capabilities

 

2-D ImageAnalysis System

For characterizing HMA's and aggregates.

3-D Imaging System

WCAT is affiliated with the Washington State High Resolution X-Ray Computed Tomography Laboratory (WAX-CT).

 

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