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This specification covers the performance requirements for membrane-forming liquids suitable for use as curing compounds and sealers for fresh and hardened concrete. Each membrane should have good alkali resistance, acid resistance, adhesion-promoting qualities, and resistance to degradation by UV light. The materials are limited to clear or translucent and white pigmented materials, all of which are classified into non-yellowing, moderately yellowing, or yellows or darkens unrestrictedly.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification provides requirements for membrane-forming liquids suitable for use as curing compounds and sealers on freshly placed concrete and as sealers on hardened concrete. These membranes have special properties, such as, alkali resistance, acid resistance, adhesion-promoting qualities, and resistance to degradation by UV light.
Note 1—For liquid membrane-forming curing compounds specified primarily by their ability to retain water in newly placed concrete (and by drying time, and for white pigmented products, reflectance), see Specification C309.
1.2 The values stated in SI units are to be regarded as the standard. (Inch pound units are shown in parentheses).
1.3 The following precautionary caveat pertains only to the test methods portion, Section 8, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.4 This is a performance specification. The allowable composition of products covered by this specification is limited by various local, regional, and national regulations. Issues related to air quality (solvent emission), worker exposure, and other hazards are not addressed here. It is the responsibility of the producers and users of these materials to comply with pertinent regulations.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C156 Test Method for Water Loss [from a Mortar Specimen] Through Liquid Membrane-Forming Curing Compounds for Concrete
C309 Specification for Liquid Membrane-Forming Compounds for Curing Concrete
D869 Test Method for Evaluating Degree of Settling of Paint
D1308 Test Method for Effect of Household Chemicals on Clear and Pigmented Organic Finishes
D1309 Test Method for Settling Properties of Traffic Paints During Storage
D1544 Test Method for Color of Transparent Liquids (Gardner Color Scale)
D1734 Practice for Making Cementitious Panels for Testing Coatings
D2369 Test Method for Volatile Content of Coatings
D2371 Test Method for Pigment Content of Solvent-Reducible Paints
D3723 Test Method for Pigment Content of Water-Emulsion Paints by Low-Temperature Ashing
D4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers
E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
G154 Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials
Other StandardANSIA136.1–19 Type I Organic Adhesives for Installation of Ceramic Tile American National Standard Specifications for the Installation of Ceramic Tile, 1992, Tile Council of America, P.O. Box 1787, Clemson, SC 29633-1787.
ICS Number Code 91.100.50 (Binders. Sealing materials)
UNSPSC Code 30111500(Concrete and mortars)