AASHTO PP 74-12

AASHTO PP 74-12

Standard of Method of Test for Protective Sealers for Portland Cement Concrete American Association of State and Highway Transportation Officials / 2012 / 9 pages

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This practice describes measuring size and roundness of translucent glass beads used in traffic markings with computerized optical equipment. This practice is intended for glass beads from 0.15 mm to 2.35 mm in diameter.



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