ASTM C1229-94(2023)

Standard Test Method for Determination of Glass Fiber Content in Glass Fiber Reinforced Concrete (GFRC) (Wash-Out Test)

SIGNIFICANCE AND USE
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.
SCOPE
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.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Apr-2023
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C27 - Precast Concrete Products
• Drafting Committee: C27.40 - Glass Fiber Reinforced Concrete

Relations

• Refers: ASTM C1228-96(2009) - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete
• Effective Date: 01-May-2009
• Refers: ASTM C1228-96(2004) - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete
• Effective Date: 01-Dec-2004
• Refers: ASTM C1228-96 - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete
• Effective Date: 01-Jan-1996

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1229 − 94 (Reapproved 2023)
Standard Test Method for
Determination of Glass Fiber Content in Glass Fiber
Reinforced Concrete (GFRC) (Wash-Out Test)
This standard is issued under the fixed designation C1229; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
4.1 Glass fiber contents, determined by this test method, are
1.1 This test method covers determination of the fiber
useful for quality control of GFRC products to ensure that
content in an uncured, glass fiber reinforced concrete (GFRC)
manufacturing equipment has been set up to deliver the correct
sample panel.
proportions of glass fiber reinforcement in a GFRC composite.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
5. Apparatus
conversions to SI units that are provided for information only
5.1 Balance, 2 kg capacity, sensitive to the nearest 0.1 g.
and are not considered standard.
5.2 Mesh Basket or Strainer, approximately 30 in. (493
1.3 This standard does not purport to address all of the
cm ) capacity of woven stainless steel wire and mesh size
safety concerns, if any, associated with its use. It is the
3 1
between ⁄16 (4.5 mm) and ⁄16 (1.5 mm). Overall dimensions
responsibility of the user of this standard to establish appro-
must totally accept the test sample without any overhang, and
priate safety, health, and environmental practices and deter-
depth should be approximately twice the thickness of the test
mine the applicability of regulatory limitations prior to use.
sample. Gage and construction must be such that mesh
1.4 This international standard was developed in accor-
dimension cannot easily enlarge, allowing glass reinforcement
dance with internationally recognized principles on standard-
to escape.
ization established in the Decision on Principles for the
5.3 Drying Chamber, an oven that can be set at 230 6 10°F
Development of International Standards, Guides and Recom-
(110 6 10°C), or a muffle furnace set at 900 6 10°F (482 6
mendations issued by the World Trade Organization Technical
10°C).
Barriers to Trade (TBT) Committee.
5.4 Razor Knife, capable of 6 in. blade extension.
2. Referenced Documents
5.5 Splitting Jig, see Fig. 1.
2.1 ASTM Standards:
6. Sampling
C1228 Practice for Preparing Coupons for Flexural and
Washout Tests on Glass Fiber Reinforced Concrete
6.1 Sampling should be in accordance with governing
specifications.
3. Terminology
7. Test Specimens
3.1 Definitions:
7.1 Cut the coupons with a razor knife from a freshly cast,
3.1.1 glass fiber reinforced concrete (GFRC)—a composi-
damp, uncured sample panel. When cutting out the test coupon,
tion of cementitious material, aggregates, water, admixtures,
the sample panel shall have sufficient cohesiveness such that:
and alkali-resistant glass fiber.
(a) a clean cut can be made without pulling out fibers from the
test coupon or the adjacent material, and (b) that material is not
lost from the test coupon prior to determining mass.
This test method is under the jurisdiction of ASTM Committee C27 on Precast
2 2
Concrete Products and is the direct responsibility of Subcommittee C27.40 on Glass
7.2 The test specimen shall be between 12 in. (78 cm ) and
2 2
Fiber Reinforced Concrete.
16 in. (103 cm ).
Current edition approved May 1, 2023. Published May 2023. Originally
approved in 1993. Last previous edition approved in 2015 as C1229 – 94(2015).
8. Procedure
DOI: 10.1520/C1229-94R23.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.1 Cut two test coupons with a razor knife from a freshly
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
produced, damp, uncured sample panel as done i
...