Section 4.6.1
Frost and Cold Weather
When concrete is undertaken in during colder weather, curing periods should be adjusted according to environmental conditions. Concrete should not be placed where the ground, oversite or surfaces that will be in contact with the concrete are frozen.
Thermometer must be place at the north facing side of the office with the sensor placed outside a window.
The minimum temperature of ready-mix concrete when delivered should be 5°.
