Unformatted text preview: Put aggregate and charges in the abrasion machine. The machine should revolve between 30-33 revolutions/minute for 500 revolutions. For this sample size, 11 spheres should be used. 4. Sieve on a No. 12 sieve. 5. Wash the coarser material and dry. Determine the mass to the nearest 1 g. 6. Calculate the loss as a percentage of the original mass. Calculations • Percent Loss original final original Loss M M M-= % Significance and Use • This test is used to indicate the quality of the aggregate and it’s resistance to drum work....
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- Spring '09
- Debut albums, Standard, 1 g, 2500 g