Section 4107. Plastic Film for Subgrade Treatment
4107.01 general requirements.
A. Use polyethylene film no less than 0.85 mils (21
µm) thick, either clear or white pigmented type. Use strips wide enough to
provide a lap no less than 12 inches (0.3 m) between adjacent strips.
B. Plastic film which has been used no more than once
for curing concrete pavement and has been salvaged in usable condition may be
used for treatment of subgrade.