Product Name: 60/70 Asphalt Cement
Origin: Produced by blending refinery bitumen, a heavy oil residue from the refining of
crude petroleum, with naturally occurring Trinidad Lake Asphalt.
Other Names: Trinidad Modified Asphalt (TMA), Trinidad Lake Asphalt Cement, Modified
Asphalt, 60/70 Pen. Asphalt Cement.
Composition: Homogenous blend of 27-37% Trinidad Lake Asphalt and 63-73% Refinery
Bitumen
Approximate Percentages of Components:
Bitumen Content 77 – 90%
Mineral Matter 7.5 – 19%
Water of Hydration of Minerals 1.2 – 1.6%
Other Organic matter 0.9 – 1.2%
2. Physical and Chemical Properties
Appearance: A semi-solid, brown to black material
Properties:
Penetration (25 oC) - 60 - 70
Specific Gravity (25 oC) - 1.10– 1.15g/cm3
Softening Point (R & B) - 45 – 50oC