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PG Grade Selection

PG Grade Selection. Low Pavement Design Temperature T surf - 0.859 Tair + 1.7 T air = 1 day minimum air temperature Note: currently under review High pavement Design Temperature T 20mm = (T air -0.00618Lat 2 + 0.2289Lat + 42.2) x (0.9545) - 17.78

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PG Grade Selection

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  1. PG Grade Selection • Low Pavement Design Temperature • Tsurf - 0.859 Tair + 1.7 • Tair = 1 day minimum air temperature • Note: currently under review • High pavement Design Temperature • T20mm = (Tair-0.00618Lat2 + 0.2289Lat + 42.2) x (0.9545) - 17.78 • T20mm= high design temp at a depth of 20 mm • Tair = 7 day average high air temp • Lat- geographical latitude in degrees

  2. PG Grade Selection

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