Our onsite laboratories allow us to constantly monitor our products and adjust for variations in processing the natural resource, thereby maintaining product quality & specifications. The laboratories are regularly certified by the Canadian Council of Independent Laboratories (CCIL) as Type C labs. Yearly proficiency testing is carried out at each of our certified labs to meet the requirements of the Ministry of Transportation (MTO) & CCIL. If you have any questions about our processes or certifications feel free to contact our Quality Control Department.
(Sieve Analysis) - The determination of the particle size distribution of fine and coarse aggregates. We typically produce our products to meet the OPSS gradation requirements. See Below for the gradation requirements by material category.
Surface Treatment Aggregates
Testing performed to determine the physical characteristics of fine and coarse aggregates. The chart below shows some of the typical tests performed on the aggregates. The application helps dictate which physical tests are required for a product.
Materials finer than 75um by Washing
Relative Density & Absorption of Course Aggregate
Soundness of Aggregates by use of Magnesium Sulphate
Determination of Percent Crushed Particles
Determination of % Flat & Elongated Particles
Petrographic Analysis of Course Aggregate
Freezing and Thawing of Course Aggregate
Micro-Deval Abrasion (Coarse Aggregate)
Micro-Deval Abrasion (Fine Aggregate)
Accelerated Mortar Bar Expansion
Determination of Amount of Asphalt Coated Particles
Determination of Amount of Contamination