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Division 41 — Construction Materials

4106Plastic Film and Insulating Covers for Curing Concrete

IA · 2023 Standard Specifications✓ Full text on BuildSpecBook pages 1075–1075 Save this section

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4106.01 A.

B.

PLASTIC FILM. Comply with the following: 1.

Tough, pliable, moisture proof, and durable

2.

Material will retain its moisture proof properties while it is in place on the surface of the concrete.

3.

White pigmented material that is opaque.

4.

No less than 0.85 mils thick.

5.

No less than 70% daylight reflectance relative to magnesium oxide when tested according to ASTM E 1347.

If the thickness of plastic film is less than 3.4 mils, do not use it more than once for curing concrete.

4106.02INSULATING COVERS

Comply with the following: A.

Cellulosic fiber sheeting with a nominal 3/4 inch thickness.

B.

Similar to sheeting specified in ASTM C 208.

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Source: Iowa Standard Specifications for Highway and Bridge Construction, 2023 Edition. Pages 1075–1075 of 1,288. View official source ↗

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