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Specifications of Bitumen 40/50: PROPERTY UNIT 40/50 TEST METHODS Specific Gravity @ 25°C - 1.01 – 1.06 ASTM D-70 Penetration @ 25°C, 100gm, 5 Sec 0.1MM 40 – 50 ASTM...
The penetration grading system was developed in the early 1900s to characterize the consistency of semi-solid asphalts. Penetration grading quantifies the following asphalt concrete...