top of page
FT AGGREGATES INC
Alberta Transportation Specifications Products
Alberta Transportation Specification sand, gravel, and rock are separated into designations and classes. The designation identifies which product can be used in the construction of highways and related infrastructure. The class determines the size of the product to be used.
Designation 2-20 | Des. 2-20
20 mm (3/4") Base course aggregate
Designation 2-40 | Des. 2-40
40mm (1 1/4") Base course aggregate
Designation 4-25 | Des. 4-25
25mm (1") Gravel surfacing aggregate
Designation 5-10 | Des. 5-10
Sanding material
Designation 2-25 | Des. 2-25
25mm (1") Base course aggregate
Designation 4-20 | Des. 4-20
20mm *3/4") Gravel surfacing aggregate
Designation 4-40 | Des. 4-40
40mm (1 1/4") Gravel surfacing aggregate
Designation 6-80 | Des. 6-80
80mm pit run
bottom of page