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ASTM C1228-96

(Practice)

Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete

Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete

SCOPE
1.1 This practice covers preparation of test coupons to be used in tests of plant manufactured thin-section glass fiber reinforced concrete (GFRC).
1.2 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.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.

General Information

Status
Historical
Publication Date
31-Dec-1995
ICS
91.100.30 - Concrete and concrete products
Technical Committee
C27 - Precast Concrete Products
Drafting Committee
C27.40 - Glass Fiber Reinforced Concrete
Current Stage
Ref Project

Relations

Replaced By
ASTM C1228-96(2004) - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete
Effective Date
01-Dec-2004
Referred By
ASTM C1560-03(2023) - Standard Test Method for Hot Water Accelerated Aging of Glass-Fiber Reinforced Cement-Based Composites
Effective Date
01-Jan-1996
Referred By
ASTM C947-03(2023) - Standard Test Method for Flexural Properties of Thin-Section Glass-Fiber-Reinforced Concrete (Using Simple Beam With Third-Point Loading)
Effective Date
01-Jan-1996
Referred By
ASTM C1229-94(2023) - Standard Test Method for Determination of Glass Fiber Content in Glass Fiber Reinforced Concrete (GFRC) (Wash-Out Test)
Effective Date
01-Jan-1996

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ASTM C1228-96 - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced ConcreteASTM C1228-96 - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete
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ASTM C1228-96 - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 1228 – 96
Standard Practice for
Preparing Coupons for Flexural and Washout Tests on
Glass Fiber Reinforced Concrete
This standard is issued under the fixed designation C 1228; 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.
1. Scope 4. Apparatus
1.1 This practice covers preparation of test coupons to be 4.1 Form—The form shall be rectangular in shape; made
used in tests of plant manufactured thin-section glass fiber from wood, fiberglass reinforced plastic (FRP), GFRC, or steel
reinforced concrete (GFRC). with dimensions of ⁄2 in. (13 mm) deep by 18 in. (450 mm)
1.2 This standard does not purport to address all of the wide and 48 in. (1200 mm) long.
safety concerns, if any, associated with its use. It is the 4.2 Steel Trowel, at least 20 in. (500 mm) long.
responsibility of the user of this standard to establish appro- 4.3 Serrated Roller, with handle.
priate safety and health practices and determine the applica- 4.4 Strike-Off Bar (screed), at least 20 in. (500 mm) long,
bility of regulatory limitations prior to use. for leveling and thickness control of specimens.
1.3 The values stated in inch-pound units are to be regarded
5. Sampling
as the standard. The values given in parentheses are provided
for information only. 5.1 Sampling shall be in accordance with governing speci-
fications.
2. Referenced Documents
6. Procedure
2.1 ASTM Standards:
6.1 For plant manufactured product quality control pur-
C 947 Test Method for Flexural Properties of Thin-Section
Glass-Fiber-Reinforced Concrete (Using Simple Beam poses, spray the glass fiber reinforced material into the test
form using the same method as used in production. The
with Third-Point Loading)
C 1229 Test Method for Determination of Glass Fiber methods and conditions should be the same as for production
Content in Glass Fiber Reinforced Concrete (GFRC) materials except no mist coat or face mix should be used.
6.2 Trimoffexcessmaterialfromthesidesoftheformusing
(Wash-Out Test)
a steel trowel.
3. Significance and Use
6.3 Trowel surface smooth using a steel trowel.
3.1 Flexuralstrengths,asdeterminedbyTestMethodC 947, 6.4 See Fig. 1 for cutting layout for flexural test coupons
are used for quality control and design of GFRC products and and washout test coupons.
may be used to verify compliance with specific
...

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SIGNIFICANCE AND USE
3.1 Flexural strengths, as determined by Test Method C947, are used for quality control and design of GFRC products and may be used to verify compliance with specifications and to collect data in research and development programs. It is, therefore, important that coupons be prepared according to a standard practice. The coupons are used to make test specimens for Test Method C947 and for Test Method C1229 to determine the amount of glass fiber reinforcement per unit volume of GFRC for quality control purposes.
SCOPE
1.1 This practice covers preparation of test coupons to be used in tests of plant manufactured thin-section glass fiber reinforced concrete (GFRC).  
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4.1 Glass fiber contents, determined by this test method, are useful for quality control of GFRC products to ensure that manufacturing equipment has been set up to deliver the correct proportions of glass fiber reinforcement in a GFRC composite.
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1.1 This test method covers determination of the fiber content in an uncured, glass fiber reinforced concrete (GFRC) sample panel.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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3.1 Tensile loads determined by this test method are useful for quality control of GFRC architectural panels manufactured using the steel panel frame support design. In addition, test results may be used to verify compliance with governing specifications, research and development, and generating data for use in product design.
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1.1 This test method covers determination of the tensile load capacity of glass-fiber reinforced concrete (GFRC) bonding pads used for attaching steel anchors to GFRC architectural panels.  
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2.1 Material properties determined by this test method are useful for quality control of glass-fiber reinforced concrete, ascertaining compliance with governing specifications, and research and development.
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1.1 This test method covers the determinations of dry and wet bulk density, water absorption, and apparent porosity of thin sections of glass-fiber reinforced concrete.  
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Depending upon the pore size distribution and the pore entry radii of the specimen and on the purposes for which the test results are desired, the procedures of this method may be adequate, or they may be insufficiently rigorous. In the event that it is desired to fill more of the pores than will be filled by immersion, various techniques involving the use of vacuum treatment or increased pressure may be used. If a rigorous measure of total pore space is desired, this can only be obtained by determining absolute specific gravity by first reducing the sample to discrete particles, each of which is sufficiently small so that no impermeable space can exist within any of the particles.  
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3.1 The basis for this test as an indicator of the long term behavior of fiber reinforced composites is that elevated temperature and moisture content accelerate the formation of the products of hydration of the cement in the matrix, particularly calcium hydroxide.  
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1.1 This test method provides a way of accelerating the aging of glass fiber reinforced cementitious composites in order to develop data that will indicate real-life natural weathering performance.  
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