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ASTM C309-19
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Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete
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1.1 This specification covers liquid membrane-forming compounds suitable for application to concrete surfaces to reduce the loss of water during the early-hardening period. White-pigmented membrane-forming compounds serve the additional purpose of reducing the temperature rise in concrete exposed to radiation from the sun. The membrane-forming compounds covered by this specification are suitable for use as curing media for fresh concrete, and may also be used for further curing of concrete after removal of forms or after initial moist curing.
Note 1: This specification addresses only those properties listed in Sections 6 through 9. Membrane-forming compounds with special properties including better water retention, minimum solids content, resistance to ultraviolet radiation, acid and alkali resistance and non-interference with adhesives are described in Specification C1315.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| ICS | 91.100.30 : Concrete and concrete products
|
| Number of pages | 4 |
| Replace | ASTM C309-11 |
| Year | 2019 |
| Document history | ASTM C309-11 ASTM C309-07 ASTM C309-06 ASTM C309-03 ASTM C309-98a |
| Country | USA |
| Keyword | ASTM 309;ASTM C309;ASTM C309;10.1520/C0309-19 |