Mehr Parsian Bitumen 40-50
Bitumen 50-40 Mehr Parsian
Numbers in naming the type of bitumen, such as 50-50, mean the permeability of bitumen in the penetration test, which is used to determine the hardness of bitumen. In this experiment, a standard needle is penetrated into the bitumen at a temperature of 25 degrees for 5 seconds under a 100 g load. The amount of penetration is called in tenths of a millimeter of penetration. The lower the degree of penetration, the harder the bitumen and the minimum number 40 and the maximum penetration number 50.
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Bitumen 50-40 Mehr Parsian
Numbers in naming the type of bitumen, such as 50-50, mean the permeability of bitumen in the penetration test, which is used to determine the hardness of bitumen. In this experiment, a standard needle is penetrated into the bitumen at a temperature of 25 degrees for 5 seconds under a 100 g load. The amount of penetration is called in tenths of a millimeter of penetration. The lower the degree of penetration, the harder the bitumen and the minimum number 40 and the maximum penetration number 50.
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