Standard Test Method for Determining Tensile Breaking Strength of Glass Fiber Reinforcing Mesh for Use in Class PB Exterior Insulation and Finish Systems (EIFS), after Exposure to a Sodium Hydroxide Solution

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1.1 This test method covers procedures for determining the breaking force of glass fiber mesh following their conditioning in an alkali solution. The method is applicable to glass fiber mesh used in Class PB Exterior Insulation and Finish Systems (EIFS) with base coats that contain portland cement as an ingredient.
1.2 Breaking force is expressed both as force per unit width of mesh and as a percentage of the breaking force of the mesh that has not been exposed to alkali conditioning.
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.

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09-Jul-2000
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ASTM E2098-00 - Standard Test Method for Determining Tensile Breaking Strength of Glass Fiber Reinforcing Mesh for Use in Class PB Exterior Insulation and Finish Systems (EIFS), after Exposure to a Sodium Hydroxide Solution
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E2098–00
Standard Test Method for
Determining Tensile Breaking Strength of Glass Fiber
Reinforcing Mesh for Use in Class PB Exterior Insulation
and Finish Systems (EIFS), after Exposure to a Sodium
Hydroxide Solution
This standard is issued under the fixed designation E 2098; 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 3.2 Breaking force is determined by mounting a test speci-
men in a tensile testing machine and applying a force to the
1.1 This test method covers procedures for determining the
specimen until it breaks.
breaking force of glass fiber mesh following their conditioning
in an alkali solution. The method is applicable to glass fiber
4. Significance and Use
mesh used in Class PB Exterior Insulation and Finish Systems
4.1 Glass fiber reinforcing meshes are used to strengthen
(EIFS) with base coats that contain portland cement as an
EIFS. The reinforcing meshes are embedded into base coats
ingredient.
that contain portland cement, which potentially exposes the
1.2 Breaking force is expressed both as force per unit width
glass fibers in the reinforcing meshes to weakening by the
of mesh and as a percentage of the breaking force of the mesh
action of alkali. The breaking force following alkali exposure
that has not been exposed to alkali conditioning.
as determined by this method, is a factor used to comparatively
1.3 This standard does not purport to address all of the
evaluate the alkali resistance of EIFS glass fiber reinforcing
safety concerns, if any, associated with its use. It is the
meshes in the laboratory.
responsibility of the user of this standard to establish appro-
4.2 This test method does not purport to simulate the
priate safety and health practices and determine the applica-
conditions that may be encountered in service. The perfor-
bility of regulatory limitations prior to use.
mance of an EIFS is a function of many factors, such as proper
2. Referenced Documents installation, rigidity of supporting construction and resistance
of the EIFS to deterioration by other causes.
2.1 ASTM Standards:
D 579 Specification for Greige Woven Glass Fabrics
5. Apparatus and Reagents
D 5035 Breaking Force and Elongation of Textile Fabrics
5.1 Tensile Testing Machine, of the controlled rate of
D76 Specification forTensileTesting Machines forTextiles
extension type, as defined in D76, clumps and jaw faces
2.2 Other Documents:
conforming to those in D 5035.
EIFS Industry Members Association (EIMA) Guideline
5.2 Container and container cover for alkali solution—
Specification for Exterior Insulation and Finish Systems
material inert to alkali of suitable dimensions to permit unbent
(EIFS), Class PB
mesh specimens to be fully covered with a depth of 25 mm (1
3. Summary of Test Method in) of alkali solution. The cover for the container shall be of
suitable design to prevent evaporative loss from the solution
3.1 Specimens are tested for breaking force with and with-
which would increase its concentration.
out conditioning. Conditioning is immersion for 28 days in an
5.3 Distilled water
aqueous solution of 5% sodium hydroxide.
5.4 Reagent Grade Sodium Hydroxide
6. Sampling
ThistestmethodisunderthejurisdictionofASTMCommitteeE06onBuilding
6.1 Laboratory Sample—from a sample roll, cut 30 speci-
Constructions and is the direct responsibility of Subcommittee E06.58 on Exterior
mens 50 6 3 mm (2 in) wide at least 600 mm 6 13 mm (24
Insulation and Finish Systems (EIFS).
Current edition approved July 10, 2000. Published July 2000. in) long; 15 specimens with their long dimensions parallel to
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E2098–00
the machine (warp) direction, and 15 specimens with their long 10.5 If specimen slips in the jaw, or breaks at the edge of, or
dimensions parallel to the cross (fill) direction. in the jaws, discard the result and take another specimen.
6.2 The actual number of yarns shall be equal within the Continue until 5 acceptable breaks have been obtained for each
width dimensional tolerance allowed (63mm[ ⁄8 in]), and the of:
actual number of yarns shall be reported.
(a) Unconditioned specimens with their long direction
6.3 Specimens shall be spaced across the width of the fabric parallel to the warp.
to ensure representation of different warp yarns. Fill specimens
(b) Conditioned specimens with their long direction paral-
shall be from widely spaced locations within the sample roll. lel to the warp.
(c) Unconditioned specimens with their long direction
7. Preparation of Specimens
parallel to the fill.
7.1 Number each specimen at both ends and then cut the
(d) Conditioned specimens with their long direction paral-
specimens in half crosswise to provide one set for determining
lel to the fill.
the conditioned breaking force and another set for determining
NOTE 1—The fragile nature of the specimens and the resultant test
the unconditioned breaking force. This allows for breaks on
variability will make it ob
...

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