armoroc physical mechanical properties

 ARMOROC STRUCTURAL CEMENT BOARD

published 9/29/15

 

PHYSICAL & MECHANICAL PROPERTIES

PROPERTY

VALUE

STANDARD / REFERENCE

Modulus of Elasticity, psi

(machine direction, dry)

435,000 psi / 3000 Mpa

ISO 8335 Standard*

Modulus of Rupture, psi

2,611

ASTM C120

Shear Strength, psi

1,308.27

ASTM D732

Bending Strength, psi

≥ 1,305 psi / 9 Mpa

ISO 8335 Standard*

Tensile Strength, psi (machine direction, dry)

963.39

ASTM D1037

Compressive Strength, psi (machine direction, dry)

2,937.96

ASTM D1037

Thermal Conductivity
7/8″ (22mm)

‘K’ value = 1.511  Btu / hr.ft 2.oF

‘R’ value = 0.669  o F.ft2.h / Btu

ASTM C518

Linear Variation With Change In Moisture (from 50% to 90% relative humidity)

Length=0.05%


Weight=2.04%

ASTM D1037

 

Saturated Thickness Swelling (24-hour water immersion)

 

Thickness = 1.5%
 Volume = 0.27%
 Weight = 9.41%

 

ASTM D1037

 

Dimensional Tolerances

Length & Width:± 5mm

Thickness 6mm to 12mm: ± 1.0 mm

Thickness 12 to 20mm: ±1.5mm

Thickness 20mm or greater: ± 2.0mm

Thickness on calibrated product: ± 0.3mm

Straightness of Edges (Length & Width): 1mm / m

Squareness of Edges:  2mm / m

 

ISO 8335 Standard*

Shear Diaphragm

(19mm, ultimate shear)

1,703 PLF  (with glue)

1,000 PLF (w/out glue)

ASTM E455  ‡

Lateral Nail Resistance Max Load, lbf

491.39

ASTM D1761

Nail Head Pull Through, lbf (dry)

804.04

ASTM D1037

PH Value

11 – 12

ISO 8335 Standard*

Density – Oven Dry

≥ 62.4 lbs/ft3

ISO 8335 Standard*

Moisture Content (at 65% RH)

6% – 12%

ISO 8335 Standard*

Frost Resistance

50 cycles, zero damage

ISO 8335 Standard*

Formaldehyde Content

Zero

MSDS

Asbestos Content

Zero

MSDS

Rot & Termite
Resistance

Resistant to destruction

Resistant / No Food Value

Surface Burning Characteristics

CLASS A (0 Flame / 0 Smoke)

ASTM E84/UL 723/ULC S102

Noncombusitiblity

10 Minutes

ASTM E136

UL Listed

File # R25825

UL 723

Fire Rated Floor & Roof Assemblies

Yes – Refer to Test Reports

UL & NYC MEA

*These values are the minimum allowable performance requirements of ISO 8335 International Standard for CBPB. ARMOROC® is in compliance with the ISO 8335 Standard and performance shall be equal to or greater than values set forth by the standard.
† These values are from Bodycote Test Report 0606_M03551 R.3. Sep. 20, 2007, which was an evaluation test on 22mm thick Armoroc, uncalibrated boards. Performance of other thicknesses and finishes may vary but shall still meet or exceed the ISO 8335 Standard.
‡ Shear Diaphragm is reported in Ultimate Shear, allowing the engineer to apply the appropriate safety factor for wind, seismic as suggested by their preferred method of load calculation. Please refer to shear diaphragm test assembly for complete details.
1 ) All ARMOROC® installations must be designed and reviewed by a qualified architect or engineer. Panels perpendicular to supports. 3/4″ minimum for floors, subject to load table and building code limitations. Refer to installation specifications for additional information on proper use and installation of Armoroc.
2 ) This technical data sheet replaces all previously published technical data sheets or physical & mechanical property sheets

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