ASTM C1229-94(2009)

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

SIGNIFICANCE AND USE
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2009
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C27 - Precast Concrete Products
• Drafting Committee: C27.40 - Glass Fiber Reinforced Concrete

Relations

• Replaces: ASTM C1229-94(2001) - Standard Test Method for Determination of Glass Fiber Content in Glass Fiber Reinforced Concrete (GFRC) (Wash-Out Test)
• Effective Date: 01-May-2009
• Referred By: ASTM C1228-96(2023) - Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete
• Effective Date: 01-May-2009

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C1229 − 94(Reapproved 2009)
Standard Test Method for
Determination of Glass Fiber Content in Glass Fiber
1
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.
3
1. Scope 5.2 Mesh Basket or Strainer, approximately 30 in. (493
3
cm ) capacity of woven stainless steel wire and mesh size
1.1 This test method covers determination of the fiber
3 1
between ⁄16 (4.5 mm) and ⁄16 (1.5 mm). Overall dimensions
content in an uncured, glass fiber reinforced concrete (GFRC)
must totally accept the test sample without any overhang, and
sample panel.
depth should be approximately twice the thickness of the test
1.2 The values stated in inch-pound units are to be regarded
sample. Gage and construction must be such that mesh
as standard. The values given in parentheses are mathematical
dimension cannot easily enlarge, allowing glass reinforcement
conversions to SI units that are provided for information only
to escape.
and are not considered standard.
5.3 Drying Chamber, an oven that can be set at 230 6 10°F
1.3 This standard does not purport to address all of the
(110 6 10°C), or a muffle furnace set at 900 6 10°F (482 6
safety concerns, if any, associated with its use. It is the
10°C).
responsibility of the user of this standard to establish appro-
5.4 Razor Knife, capable of 6 in. blade extension.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5.5 Splitting Jig, see Fig. 1.
2. Referenced Documents
6. Sampling
2
2.1 ASTM Standards:
6.1 Sampling should be in accordance with governing
C1228 Practice for Preparing Coupons for Flexural and
specifications.
Washout Tests on Glass Fiber Reinforced Concrete
7. Test Specimens
3. Terminology
7.1 Cut the coupons with a razor knife from a freshly cast,
3.1 Definitions:
damp,uncuredsamplepanel.Whencuttingoutthetestcoupon,
3.1.1 glass fiber reinforced concrete (GFRC)—a composi-
the sample panel shall have sufficient cohesiveness such that:
tion of cementitious material, aggregates, water, admixtures,
(a) a clean cut can be made without pulling out fibers from the
and alkali-resistant glass fiber.
test coupon or the adjacent material, and (b) that material is not
lost from the test coupon prior to determining mass.
4. Significance and Use
2 2
7.2 The test specimen shall be between 12 in. (78 cm ) and
4.1 Glass fiber contents, determined by this test method, are
2 2
16 in. (103 cm ).
useful for quality control of GFRC products to ensure that
manufacturing equipment has been set up to deliver the correct
8. Procedure
proportions of glass fiber reinforcement in a GFRC composite.
8.1 Cut two test coupons with a razor knife from a freshly
5. Apparatus
produced, damp, uncured sample panel as done in Practice
C1228. Place the coupons in a mesh basket of known mass
5.1 Balance, 2 kg capacity, sensitive to the nearest 0.1 g.
(W 1) and record the total mass (W2). The basket and contents
are held under a stream of running water and the composite is
1
This test method is under the jurisdiction ofASTM Committee C27 on Precast
worked with fingers to break it up. Take care to ensure that no
Concrete Products and is the direct responsibility of Subcommittee C27.40 on Glass
Fiber Reinforced Concrete.
glass is lost. See Fig. 2.
Current edition approved May 1, 2009. Published May 2009. Originally
8.2 When all the cement and fine aggregate (if any) are
approved in 1993. Last previous edition approved in 2001 as C1229 – 94(2001).
DOI: 10.1520/C1229-94R09.
washed away, dry the basket and contents in an oven at 230 6
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10°F (110 6 10°C), (or muffle furnace at 900 6 10°F (483 6
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
10°C) to a constant mass, as determined by taking three
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. measurements at 10 min intervals. After drying, tap the basket
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C1229 − 94 (2009)
of dried glass against the countertop to dislodge adhered sand
particles that would induce an error in the glass content
measurement. Be careful not to lose any glass particles. The
last value of mass is recorded as W3, provided it differs from
the previous value by less than 0.1 %.
NOTE 1—Microwave ovens should not be used t
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