Rev. April 2003
GC
Products, Inc. GFRC* - Glass Fiber Reinforced Cement
1.0
General
1.
Glass fiber cement fabrications as
indicated on the drawings.
1.2
Related
Sections:
1.
Section
04720 – Cast Stone
2.
Section
05500 – Metal Fabrications
3.
Section
06100 – Rough Carpentry
4.
Section
09900 – Paints and Coatings
1.3
References:
1.
ASTM C 150 –
Standard Specification for Portland Cement
2.
ASTM E 84 –
Standard Test Method for Surface Burning
Characteristics
1.4
Manufactures:
GC Products,
Inc.
1045 West
National Dr., Suite 7
Sacramento, CA
95834-1930
P.
916.263.9892 F. 916.263.9893
www.gypcemproducts.com
1.5
Submittals and Samples:
1. Product
Data: Manufactures data sheets, including
dimensions, finishes, installation recommendations
and storage and handling requirements.
2.
Shop
Drawings: Provide drawings showing dimensions and
joint details.
3. Samples:
Submit two samples, minimum size 6 inches (150 mm)
square, representing actual product, color and
patterns.
1.6
Substitutions:
1.
Not
permitted
GC Products, Inc.
GFRC* - Glass Fiber Reinforced Cement
2. Requests
for substitutions will be considered in accordance
with provisions of Section 01600.
1.7
Quality Assurance:
1.
Installer Qualifications: Regularly engaged and
experienced in the installation of glass fiber
reinforced cement or pre-cast units.
2.0
Products
2.1
Materials:
1. Glass
Fiber Reinforced Cement Fabrications: GFRC units
shall be prefabricated with Polymer Glass Fiber
Reinforced Cement.
2.
Reinforced
as required.
3.
GFRC to be
ready to receive finish coatings as specified.
4.
GFRC is
supplied in natural grey color and requires finish
by others.
A. Shell
Thickness
+1/8” – 1/16”
B.
Thickness Total Unit
+1/4” – 1/8”
C.
Variation from Dimensions
+1/8” – 1/8”
D.
Surface Burning Characteristics Flame
Spread 0
Smoke Developed 5
Fuel Contribution 5
E.
Flexural Strength
1000 to 1800 PSI
F.
Weight
2 ½ to 6 lbs./sq. ft.
G.
Compressive Strength
Over 5000 PSI
3.0
Execution
3.1
Examination
1. Do not
begin installation until substrates have been
properly construction; verify that substrates are
plumb and true.
GC Products, Inc.
GFRC* - Glass Fiber Reinforced Cement
2. If
substrate preparation is the responsibility of
another installer, notify Architect of
unsatisfactory preparation before proceeding.
3. Check
field dimensions before beginning installation. If
dimensions vary too much from design dimensions for
proper installation, notify Architect and wait for
written instructions before proceeding.
3.2
Preparation:
1.
Clean
surfaces thoroughly prior to installation.
2. Prepare
surfaces using the methods recommended by the
manufactures for achieving the best results for the
substrate under the project conditions.
3. Install
supplementary temporary and permanent supports as
required for proper installation.
3.3
Installation:
1. Install
in accordance with applicable code and manufactures
recommendations, plumb and true to line; shim where
necessary.
2.
Provide
control joints at not more than 35 feet on center if
not indicated on drawings.
3.
Provide
expansion joints where moving joints in substrates
occur.
4.
Patch
exposed anchor points to texture of unit.
3.4
Protection:
1.
Protect installed products until completion of
project.
3.
Touch-up,
repair or replace damaged products before
Substantial Completion.
