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WR Bonsal Co. Tile Setting Products Concrete Backerboard/Fire Rated Wall
Concrete
Backerboard |
General
UTIL-A-CRETE® is a
lightweight concrete backerboard designed to be used as a permanent substrate for ceramic
wall and floor tiles; countertops and ceilings. It is ideal for high impact areas and can
be used both for interior and exterior applications. Meets ANSI A 118.9.
Features
-Contains portland cement, fiberglass mesh and lightweight aggregate
-Wrapped, tapered edge
-Moisture-resistant
-No additives or fillers
-Available in 1/4", 1/2" and 5/8" thicknesses and lengths up to 8' long by
3' wide
-Low coefficient of expansion and contraction -Approved for interior and exterior use |
Benefits
-Easy to cut, score and install
-Superior fastener pull-through resistance
-Unsurpassed flexural and compressive strength
-Will not soften, swell, rot or delaminate
-Less susceptible to environmental changes
-Vermin proof
-Increases in strength and hardness over time
-Can be fastened with nails or screws
-1/4" UTIL-A-CRETE ideal for countertops, floors, and curved surfaces.
Recognition
-CABO NER-419
-ICBO, SBCCI, BOCA
-City of New York MEA 293-89-M
-UL Listed 42 x 2 "Floor Protectors and Wall Shields" |
Performance Properties
UTIL-A-CRETE®, when tested
by independent testing laboratories*, using Standard ASTM test methods, has the following
performance properties:
|
| Performance Property |
Test Method |
Value |
| Compressive Strength (Indentation) |
ASTM-D-2394 |
>2600 psi |
| Flexural Strength |
ASTM-C-947 |
>1500psi |
Linear Variations with
change in
moisture to air day (50%
R.H., 73º) C-34-84 |
ASTM-D-1037 |
|
| Width |
|
0.02% |
| Length |
|
0.02% |
| Surface Burning |
ASTM-E-84 |
Flame Spread-5 |
| Characteristics |
Smoke level-0 |
|
| Fire Rating |
ASTM-199 |
1 hour rating |
| Density Weight per sq. ft. |
|
Avg. 2.9 lbs. |
| Fastener pull-through |
ASTM-D-1037 |
>195psi |
| Bond Strength |
ANSI-A-118.1 |
>50 |
| Ceramic Tile (wet and dry) |
A118.4 |
>50 |
*Independent laboratory test reports
available upon request.
|
| Thickness |
Width |
Lengths |
Edge |
| 1/4" |
4', 5', 64" |
3' |
Wrapped |
| 1/2" |
4', 5', 64", 6'
(8'**) |
3' |
Wrapped |
| **5/8" |
4', 5', 64", 6'
(8'**) |
3' |
Wrapped |
Fire Rated Wall Assemblies
|
| UTIL-A-CRETE®
backerboard units have been approved for use in construction which requires a
fire-resistant rated wall. A one-hour rated wall assembly consists of 20-gauge
3-1/2" steel studs, one layer of 7/16" UTIL-A-CRETE® on one side and one layer
of 5/8" type X gypsum wallboard on the opposite side, with mineral fiber insulation
batts in the stud cavities. Uniquely, this rating was achieved without any facing material
(e.g., ceramic tile or marble) over either the UTIL-A-CRETE or gypsum board, which allows
the owner, architect or contractor greater flexibility in designing the finished surface,
while retaining or even enhancing the one-hour rating. (Tests were conducted pursuant to
ASTM E-119-83, as a non-load-bearing wall, fire-rated both sides, under the supervision of
Construction Technology Laboratories.) |

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