MONOKOTE Z-146T High Density Cementitious Fireproofing
MONOKOTE® Z-146T high density cementitious fireproofing has been developed by GCP Applied Technologies to meet specialty and industrial fireproofing requirements requiring greater resistance to harsh environmental conditions.
MONOKOTE® Z-146T is a Portland cement-based, factory-mixed material requiring only the addition of water on the job site for application. It is spray applied, providing up to 4 hours of fire resistance. Its physical characteristics are excellent for areas exposed to environmental or climatic conditions.
MONOKOTE® Z-146T may be used in areas where high durability and corrosion resistance is required such as substrates subjected to exterior exposure.
Approvals
- Up to 4 hours in accordance with the Rijkswaterstaat (RWS) fire curve
- Jet fire testing in accordance with HSE standard OTI 95 634
- Up to 4 hours in accordance with UL 263 (ASTM E119)
- Up to 4 hours in accordance with UL 1709 hydrocarbon test
- Investigated by UL for exterior use
Features & Benefits
MONOKOTE® Z-146T offers the following advantages to architects, engineers and applicators:
- Factory pre-mixed - Ready to use. No job site proportioning required. Simply add water in a standard paddle-type plaster mixer and apply with conventional plastering equipment.
- Non-toxic - The factory-mixed blend of common Portland cement and other inert materials requires only the addition of water for mixing and application.
- Attractive finishes - MONOKOTE® Z-146T may be sprayed or hand troweled after spraying to achieve a lightly textured appearance.
- Equipment versatility - MONOKOTE® Z-146T can be mixed in a standard plaster mixer. After mixing, MONOKOTE® Z-146T may be spray-applied with commonly available pumping and spraying equipment.
- Corrosion inhibition - MONOKOTE® Z-146T neither prevents nor promotes the corrosion of steel, however, the inclusion of calcium nitrite as a corrosion inhibitor has been shown to retard the rate of corrosion due to salt and other aggressive environmental conditions.
- Moisture resistant - The Portland cement base affords excellent fire protection characteristics in areas subjected to high humidity.
- Durable - Hardness and durability help resist accidental physical damage.
- Weatherable - Able to withstand freeze/thaw, wind, rain and other climatic conditions.
Uses
MONOKOTE® Z-146T may be used in roadway tunnels and in exterior environments where a highly durable fireproofing is required and a threat of steel corrosion is present.
Performance Characteristics
PHYSICAL PROPERTIES | RECOMMENDED SPECIFICATION | LABORATORY TESTED* VALUES | TEST METHOD ** |
---|---|---|---|
Dry density, minimum average | Min. 40 pcf (640 kg/m3) | See note below*** | ASTM E605 |
Bond strength | Min. 10,000 psf (478 kN/m2) | 16,727 psf (800 kPa) | ASTM E736 |
Compression, 10% deformation | 500 psi (3.45 MPa) | 561 psi (3.87 MPa) | ASTM E761 |
Air erosion | Max 0.000 g/ft2 (0.00 g/m2) | 0.000 g/ft2 (0.00 g/m2) | ASTM E859 |
High velocity air erosion | No continued erosion after 4 hours | No continued erosion after 4 hours | ASTM E859 |
Hardness | 40 | 49 | ASTM D2240 |
Bond impact | No cracking, spalling or delamination | No cracking, spalling or delamination | ASTM E760 |
Deflection | No cracking, spalling or delamination | No cracking, spalling or delamination | ASTM E759 |
Resistance to mold growth | No growth after 28 days | No growth after 28 days | ASTM G21 |
Surface burning characteristics | Flame spread = 0 Smoke developed = 0 | Flame spread = 0 Smoke developed = 0 | ASTM E84 |
Combustibility | Less than 5 MJ/m2 total, 20 kw/m2 peak heat release |
Less than 5 MJ/m2 total, 20 kw/m2 peak heat release |
ASTM E1354 |
* Independent laboratory tested value. Report available upon request.
** ASTM International test methods modified for Bond Strength and Compressive Strength, where required, for high density, high performance products.
*** All in-place performance tests should be conducted at or below the minimum recommended specification density.