3755Linseed Oil Membrane Curing Compound

MN · 2025 Standard Specifications✓ Full text on BuildSpecBook pages 1002–0 Save this section

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3755.1SCOPE

Provide extreme service white pigmented, heavy bodied linseed oil emulsion for application as a membrane cure and sealer.

3755.2REQUIREMENTS

Provide membrane curing compounds meeting the following requirements:

(1)All membrane-curing compound pre-approved by the Department before use; the most

current approved lots and batches with product expiration dates are available on the APL

(2)Meets the requirements of the Department’s Curing Compound Manufacturer Approval

Program, including pre-testing of Materials by the manufacturer

(3)Composed of a blend of boiled linseed oil and high viscosity, heavy bodied linseed oil

emulsified in a water solution meeting the requirements of ASTM C309, Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete, Type 2, except the Department will waive the drying time

(4)The Engineer will not allow the use of curing compound that is over 1 year from the

manufacture date

(5)Sprayable at temperatures of at least 40°F

(6)Formulated to maintain the specified properties of Table 3755.2-1

Table 3755.2-1 Chemical Requirements of Linseed Oil Membrane Curing Compound (volumes exclusive of added pigment) Material Requirements Percent by Weight Oil phase (50± 4 percent by volume): Boiled linseed oil 80 Z-8 viscosity linseed oil 20 Water phase (50 ± 4 percent by volume)

3755.3SAMPLING AND TESTING

Provide samples for testing meeting the requirements of the Schedule of Materials Control . Test membrane curing compound at an application rate of 200 square feet per gallon.

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Source: Minnesota Standard Specifications for Construction, 2025 Edition. Pages 1002–0 of 1,081. View official source ↗

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