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Cement stabilized macadam base construction specification stipulates that the temperature shall not be lower than what.
The daily minimum temperature shall be above 5 degrees Celsius, and the construction shall be completed 15~30 days before the first refreezing in the heavily frozen area (generally -3 ~-5 degrees).

See current industry standard JTG/T F20-20 15 Technical Rules for Construction of Highway Pavement Base 5. 1.6.

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