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ASTM C150

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Hotmix Paving<br />

• Minimum ambient temperature requirements:<br />

– 32°F for base courses > 2”<br />

– 40°F for base, binder, or wearing course ≤ 2”<br />

– 50°F for wearing or surface courses ≤ 1”<br />

– 60° to 65°F for open-graded and certain polymer surface<br />

courses<br />

• Succeeding course should not be placed until the<br />

previous course has cooled to < 140°F<br />

• Traffic should not be allowed on pavement until the<br />

surface temperature has cooled to < 140°F

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