ASTM C171-03

Standard Specification for Sheet Materials for Curing Concrete

SCOPE
1.1 This specification covers materials in sheet form used for covering the surfaces of hydraulic cement concrete to inhibit moisture loss during the curing period and, in the case of the white reflective type materials, to also reduce temperature rise in concrete exposed to radiation from the sun. The following types are included:
1.1.1 Curing Paper:
1.1.1.1 Regular.
1.1.1.2 White.
1.1.2 Polyethylene Film
1.1.2.1 Clear.
1.1.2.2 White Opaque.
1.1.3 White-Burlap-Polyethylene Sheet.
1.2 The values stated in SI units are to be regarded as the standard. Inch-pound units are provided in parentheses for information only.
Note 1—This specification does not cover materials such as burlap, cotton mats, or rugs used with additional applications of water to maintain a water-saturated environment on such surfaces. Procedures employing these materials are discussed in ACI 308R. Sheet materials having additional characteristics such as insulating properties and the ability to carry additional water to the curing region are commercially available but are not currently addressed in this specification.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes shall not be considered as requirements of the standard.

General Information

• Status: Historical
• Publication Date: 09-Jan-2003
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.22 - Materials Applied to New Concrete Surfaces

Relations

• Replaces: ASTM C171-97a - Standard Specification for Sheet Materials for Curing Concrete
• Effective Date: 10-Jan-2003
• Replaced By: ASTM C171-07 - Standard Specification for Sheet Materials for Curing Concrete
• Effective Date: 01-Nov-2007
• Referred By: ASTM C1581/C1581M-18a - Standard Test Method for Determining Age at Cracking and Induced Tensile Stress Characteristics of Mortar and Concrete under Restrained Shrinkage
• Effective Date: 10-Jan-2003
• Referred By: ASTM C1140/C1140M-11(2019) - Standard Practice for Preparing and Testing Specimens from Shotcrete Test Panels
• Effective Date: 10-Jan-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 171 – 03
Standard Specification for
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Sheet Materials for Curing Concrete
This standard is issued under the fixed designation C 171; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * E 1347 Test Method for Color and Color-Difference Mea-
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surement by Tristimulus (Filter) Colorimetry
1.1 This specification covers materials in sheet form used
2.2 ACI Standard:
for covering the surfaces of hydraulic cement concrete to
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ACI 308R Standard Practice for Curing Concrete
inhibit moisture loss during the curing period and, in the case
of the white reflective type materials, to also reduce tempera-
3. Terminology
ture rise in concrete exposed to radiation from the sun. The
3.1 Definitions:
following types are included:
3.1.1 curing paper, n—a composite consisting of two layers
1.1.1 Curing Paper:
of kraft paper bonded together with a bituminous material and
1.1.1.1 Regular.
reinforced with fiber, used for covering the surface of fresh
1.1.1.2 White.
concrete to inhibit moisture loss during the curing period.
1.1.2 Polyethylene Film:
1.1.2.1 Clear.
4. Ordering Information
1.1.2.2 White Opaque.
4.1 The purchaser shall specify the type of curing material
1.1.3 White-Burlap-Polyethylene Sheet.
to be furnished under this specification.
1.2 The values stated in SI units are to be regarded as the
4.2 Lengths and widths of the rolls or mats of the sheet
standard. Inch-pound units are provided in parentheses for
materials furnished shall be as agreed upon between the
information only.
purchaser and seller.
NOTE 1—This specification does not cover materials such as burlap,
cotton mats, or rugs used with additional applications of water to maintain
5. Performance Requirements
a water-saturated environment on such surfaces. Procedures employing
5.1 The sheet materials furnished under this specification
these materials are discussed in ACI 308R. Sheet materials having
shall be tough, strong, resilient, and capable of withstanding
additional characteristics such as insulating properties and the ability to
normal job use without puncturing or tearing.
carry additional water to the curing region are commercially available but
5.2 The sheet material shall exhibit a water vapor transmis-
are not currently addressed in this specification.
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sion rate (WVTR) of no more than 10 g/m in 24 h when tested
1.3 The text of this standard references notes and footnotes
according to Procedure E of Test Methods E 96.
which provide explanatory material. These notes and footnotes
5.3 The daylight reflectance of the white side of white
shall not be considered as requirements of the standard.
curing paper shall be at least 50 % when measured by Test
2. Referenced Documents MethodE 1347.Thedaylightreflectanceofwhitepolyethylene
film and the polyethylene side of white burlap-polyethylene
2.1 ASTM Standards:
sheet shall be at least 70 % when measured according to Test
D 829 Test Methods for Wet Tensile Breaking Strength of
2 Method E 1347.
Paper and Paper Products
D 4397 Specification for Polyethylene Sheeting for Con-
NOTE 2—Daylight reflectance is total luminous reflectance factor, CIE
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struction, Industrial and Agricultural Applications tristimulus value Y for the CIE 1931 (2°) standard observer and CIE
standard illuminant C or D65.
E 96 Test Methods for Water Vapor Transmission of Mate-
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rials
6. Physical Requirements
6.1 Curing Paper shall consist of two sheets of kraft paper
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This specification is under the jurisdiction of ASTM Committee C09 on
cemented together with a bituminous material in which are
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
C09.22 on Materials Applied to New Concrete Surfaces.
Current edition approved Jan. 10, 2003. Published March 2003. Originally
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approved in 1942. Last previous edition approved in 1997 as C 171–97a. Annual Book of ASTM Standards, Vol 06.01.
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Annual Book of ASTM Standards, Vol 15.09. Available fromAmerican Concrete Institute (ACI), P.O. Box 9094, Farmington
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Annual Book of ASTM Standards, Vol 08.03. Hills, MI 48333.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C171–03
embedded cords or strands of fiber running in both directions 6.2.2 The impact resistance and mechanical properties shall
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and not more than 32 mm (1 ⁄4 in.) apart. The paper shall be be as required in Specifi
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