ASTM C1229-94(2001)

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 the standard. The values given in parentheses are provided for information only.
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: 14-Oct-1994
• 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 - Standard Test Method for Determination of Glass Fiber Content in Glass Fiber Reinforced Concrete (GFRC) (Wash-Out Test)
• Effective Date: 15-Oct-1994
• Replaced By: ASTM C1229-94(2009) - 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: 15-Oct-1994

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2001)
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 C 1229; 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 depth should be approximately twice the thickness of the test
sample. Gage and construction must be such that mesh
1.1 This test method covers determination of the fiber
dimension cannot easily enlarge, allowing glass reinforcement
content in an uncured, glass fiber reinforced concrete (GFRC)
to escape.
sample panel.
5.3 Drying Chamber, an oven that can be set at 230 6 10°F
1.2 The values stated in inch-pound units are to be regarded
(110 6 10°C), or a muffle furnace set at 900 6 10°F (482 6
as the standard. The values given in parentheses are provided
10°C).
for information only.
5.4 Razor Knife, capable of 6 in. blade extension.
1.3 This standard does not purport to address all of the
5.5 Splitting Jig, see Fig. 1.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Sampling
priate safety and health practices and determine the applica-
6.1 Sampling should be in accordance with governing
bility of regulatory limitations prior to use.
specifications.
2. Referenced Documents
7. Test Specimens
2.1 ASTM Standards:
7.1 Cut the coupons with a razor knife from a freshly cast,
C 1228 Practice for Preparing Coupons for Flexural and
damp,uncuredsamplepanel.Whencuttingoutthetestcoupon,
Washout Tests on Glass Fiber Reinforced Concrete
the sample panel shall have sufficient cohesiveness such that:
3. Terminology (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
3.1 Definition:
lost from the test coupon prior to determining mass.
3.1.1 glass fiber reinforced concrete (GFRC)—a composi-
2 2
7.2 The test specimen shall be between 12 in. (78 cm ) and
tion of cementitious material, aggregates, water, admixtures,
2 2
16 in. (103 cm ).
and alkali-resistant glass fiber.
8. Procedure
4. Significance and Use
8.1 Cut two test coupons with a razor knife from a freshly
4.1 Glass fiber contents, determined by this test method, are
produced, damp, uncured sample panel as done in Practice
useful for quality control of GFRC products to ensure that
C 1228. Place the coupons in a mesh basket of known mass
manufacturing equipment has been set up to deliver the correct
(W 1) and record the total mass (W2). The basket and contents
proportions of glass fiber reinforcement in a GFRC composite.
are held under a stream of running water and the composite is
5. Apparatus
worked with fingers to break it up. Take care to ensure that no
glass is lost. See Fig. 2.
5.1 Balance, 2 kg capacity, sensitive to the nearest 0.1 g.
8.2 When all the cement and fine aggregate (if any) are
5.2 Mesh Basket or Strainer, approximately 30 in. (493
washed away, dry the basket and contents in an oven at 230 6
cm ) capacity of woven stainless steel wire and mesh size
3 1
10°F (110 6 10°C), (or muffle furnace at 900 6 10°F (483 6
between ⁄16 (4.5 mm) and ⁄16 (1.5 mm). Overall dimensions
10°C) to a constant mass, as determined by taking three
must totally accept the test sample without any overhang, and
measurements at 10 min int
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