Western Asphalt Products’ materials testing laboratory is an AASHTO (AMRL) Accredited Laboratory operating in accordance with the quality management requirements as outlined in AASHTO R-18¹. With superior capabilities in the following sectors, Western Asphalt Products’ offers client access to comprehensive asphalt-binder, cutback asphalt, asphalt emulsion and aggregate testing services as well as Microsurfacing and Slurry Seal mix design formulation.


Western Asphalt’s laboratory is capable of performing all testing of asphalt emulsion or cutback asphalts as may be required by municipal, county, provincial or state specifications. The Laboratory also boasts capabilities in the testing of asphalt-binder and aggregate as used in road construction and maintenance projects. Western Asphalt’s Laboratory is capable of performing the following ASTM test procedures:

Note: All stated methods may also be performed to customer specifications using AASHTO, CGSB, ISO, or other provincial/state standards.

  • ASTM C117 – Materials Finer than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing
  • ASTM C136 – Sieve Analysis of Fine and Coarse Aggregates
  • ASTM D5 – Penetration of Bituminous Materials
  • ASTM D36 – Softening Point of Bitumen (Ring-and-Ball Apparatus)
  • ASTM D88 – Saybolt Viscosity
  • ASTM D92 – Flash Point by Cleveland Open Cup
  • ASTM D95 – Water in Petroleum Products & Bituminous Materials
  • ASTM D113 – Ductility of Bituminous Materials
  • ASTM D139 – Float Test for Bituminous Materials
  • ASTM D243 – Residue of Specified Penetration
  • ASTM D244 – Standard Test Methods and Practices for Emulsified Asphalts
  • ASTM D402 – Distillation of Cutback Asphaltic (Bituminous) Products
  • ASTM D1310 – Flash Point and Fire Point of Liquids by Tag Open-Cup Apparatus
  • ASTM D2042 – Solubility of Asphalt Materials in Trichloroethylene
  • ASTM D2170 – Kinematic Viscosity of Asphalts (Bitumens)
  • ASTM D2171 – Viscosity of Asphalts by Vacuum Capillary Viscometer
  • ASTM D2419 – Sand Equivalent Value of Soils and Fine Aggregate
  • ASTM D6084 – Elastic Recovery of Bituminous Materials by Ductilometer
  • ASTM D6930 – Settlement and Storage Stability of Emulsified Asphalts
  • ASTM D6933 – Oversized Particles in Emulsified Asphalts (Sieve Test)
  • ASTM D6934 – Residue by Evaporation of Emulsified Asphalt
  • ASTM D6935 – Cement Mixing of Emulsified Asphalt
  • ASTM D6936 – Demulsibility of Emulsified Asphalt
  • ASTM D6997 – Distillation of Emulsified Asphalt
  • ASTM D6998 – Evaluating Aggregate Coating using Emulsified Asphalts
  • ASTM D7496 – Viscosity of Emulsified Asphalt by Saybolt-Furol Viscometer


Western Asphalt Products understands that road construction and maintenance issues are as unique as their respective solutions. In light of this, Western Asphalt Products has immense capability in formulating tailored solutions unique to customer’s issues. Western Asphalt’s Laboratory is equipped with a lab-mill capable of direct replication of Western Asphalt’s entire plant, including correlation of particle size-distribution to the micron (literally)! Whatever properties you are after, allow our laboratory to formulate a tailored solution for your company. Western Asphalt Products is behind your goals.

Micro-Surfacing & Slurry Formulation

As Micro-Surfacing and Slurry Seal projects rely heavily on an intimate aggregate-emulsion compatibility, Western Asphalt Products formulates aggregate-specific mix-designs through the use of standards as outlined by the International Slurry Surfacing Association (ISSA). Western Asphalt Products is capable of performing the following mix design procedures:

  • ISSA Technical Bulletin 100 – Wet Track Abrasion of Slurry Surfaces
  • ISSA Technical Bulletin 106 – Measurement of Slurry Seal Consistency
  • ISSA Technical Bulletin 109 – Measurement of Excess Asphalt in Bituminous Mixtures by Use of a Loaded Wheel Tester and Sand Adhesion
  • ISSA Technical Bulletin 113 – Trial Mix Procedure for Slurry Design
  • ISSA Technical Bulletin 114 – Wet Stripping Test for Cured Slurry Seal Mix
  • ISSA Technical Bulletin 139 – Test Method to Classify Emulsified Asphalt/Aggregate Mixture Systems by Modified Cohesion Tester Measurement of Set and Cure Characteristics
  • ISSA Technical Bulletin 144 – Classification of Aggregate Filler-Bitumen Compatability by Schulze-Breuer and Ruck Procedures
  • ISSA Technical Bulletin 145 – Determination of Methylene Blue Adsorption Value (MBV) of Mineral Aggregate Fillers and Fines
  • ISSA Technical Bulletin 147 – Measurement of Stability and Resistance to Compaction, Vertical and Lateral Displacement of Multilayered Fine Aggregate Cold Mixes

Western Asphalt’s Laboratory would be happy to produce a micro-surfacing or slurry mix design for your company. Please contact us for details.


Technical Director

Western Asphalt Products
65 Limestone Road East
Brandon, MB R7A 7L5

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