ASTM C1229-94

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

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
• Technical Committee: C27 - Precast Concrete Products
• Drafting Committee: C27.40 - Glass Fiber Reinforced Concrete

Relations

• Replaced By: ASTM C1229-94(2001) - Standard Test Method for Determination of Glass Fiber Content in Glass Fiber Reinforced Concrete (GFRC) (Wash-Out Test)
• 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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: C 1229 – 94
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
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 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 sample. Gage and construction must be such that mesh
dimension cannot easily enlarge, allowing glass reinforcement
1.1 This test method covers determination of the fiber
to escape.
content in an uncured, glass fiber reinforced concrete (GFRC)
5.3 Drying Chamber, an oven that can be set at 230°F 6 10°
sample panel.
(110°C 6 10°), or a muffle furnace set at 900°F 6 10°
1.2 This standard does not purport to address all of the
(482°C6 10°).
safety concerns, if any, associated with its use. It is the
5.4 Razor Knife, capable of 6 in. blade extension.
responsibility of the user of this standard to establish appro-
5.5 Splitting Jig, see Fig. 1.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
6. Sampling
1.3 The values stated in inch-pound units are to be regarded
6.1 Sampling should be in accordance with governing
as the standard. The values given in parentheses are provided
specifications.
for information only.
7. Test Specimens
2. Referenced Documents
7.1 Cut the coupons with a razor knife from a freshly cast,
2.1 ASTM Standards:
damp, uncured sample panel. When cutting out the test coupon,
C 1228 Practice for Preparing Coupons for Flexural and
2
the sample panel shall have sufficient cohesiveness such that:
Washout Tests on Glass Fiber Reinforced Concrete
(a) a clean cut can be made without pulling out fibers from the
3. Terminology
test coupon or the adjacent material, and (b) that material is not
lost from the test coupon prior to determining mass.
3.1 Definition:
2 2
7.2 The test specimen shall be between 12 in. (78 cm ) and
3.1.1 glass fiber reinforced concrete (GFRC)—a composi-
2 2
16 in. (103 cm ).
tion of cementitious material, aggregates, water, admixtures,
and alkali-resistant glass fiber.
8. Procedure
4. Significance and Use
8.1 Cut two test coupons with a razor knife from a freshly
produced, damp, uncured sample panel as done in Practice
4.1 Glass fiber contents, determined by this test method, are
C 1228. Place the coupons in a mesh basket of known mass
useful for quality control of GFRC products to ensure that
(W 1) and record the total mass (W2). The basket and contents
manufacturing equipment has been set up to deliver the correct
are held under a stream of running water and the composite is
proportions of glass fiber reinforcement in a GFRC composite.
worked with fingers to break it up. Take care to ensure that no
5. Apparatus
glass is lost. See Fig. 2.
8.2 When all the cement and fine aggregate (if any) are
5.1 Balance, 2 kg capacity, sensitive to the nearest 0.1 g.
3
washed away, dry the basket and contents in an oven at 230°F
5.2 Mesh Basket or Strainer, approximately 30 in. (493
3
6 10° (110°C 6 10°), (or muffle furnace at 900°F 6 10°
cm ) capacity of woven stainless steel wire an
...