Measured Data
Specific Heat
Experiments for specific heat [J/(kg K)], or heat capacity, were conducted using a heat flow meter on unconditioned and dried samples at 10 °C, 20 °C, 30 °C and 40 °C.
Unconditioned
| Temperature (C) | Specific Heat Mean (J/kg-K) | Standard Deviation (J/kg-K) |
|---|---|---|
| 10.0 | 1658.0 | 342.0 |
| 20.0 | 1722.0 | 381.0 |
| 30.0 | 1843.0 | 433.0 |
| 40.0 | 1789.0 | 397.0 |
Dried
| Temperature (C) | Specific Heat Mean (J/kg-K) | Standard Deviation (J/kg-K) |
|---|---|---|
| 10.0 | NaN | NaN |
| 20.0 | NaN | NaN |
| 30.0 | NaN | NaN |
| 40.0 | NaN | NaN |
Thermal Conductivity
Experiments for thermal conductivity [W/(m K)] were conducted using a heat flow meter on unconditioned and dried samples at 15 °C and either 45 °C or 65 °C.
Unconditioned
| Temperature (C) | Conductivity Mean (W/m-K) | Standard Deviation (W/m-K) |
|---|---|---|
| 15.0 | 0.029 | 0.001 |
| 65.0 | 0.035 | 0.002 |
Dried
| Temperature (C) | Conductivity Mean (W/m-K) | Standard Deviation (W/m-K) |
|---|---|---|
| 15.0 | 0.028 | 0.001 |
| 65.0 | 0.033 | 0.001 |
Mass Loss Rate (MLR)
Initial-mass-normalized mass loss rate [1/s] was measured in the simultaneous thermal analyzer experiments at three heating rates: 3 K/min, 10 K/min, and 30 K/min and mass loss rate [g/s] in the cone calorimeter at three heat fluxes: 25 kW/m2, 50 kW/m2, and 75 kW/m2.
Cone Calorimeter Test Notes:
This material was tested with and edge frame and calcium silicate substrate.
Simultaneous Thermal Analyzer
Cone Calorimeter: 25 kW/m2
Cone Calorimeter: 50 kW/m2
Cone Calorimeter: 75 kW/m2
Heat Release Rate Per Unit Area (HRRPUA)
Experiments for heat release per unit area [kW/m2] were conducted on samples conditioned at 20°C and 50% relative humidity using a cone calorimeter at three different heat fluxes: 25 kW/m2, 50 kW/m2, and 75 kW/m2.
This material was tested with and edge frame and calcium silicate substrate.
Cone Calorimeter: 25 kW/m2
| 25 kW/m² R1 | 25 kW/m² R2 | 25 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 14.00 | 15.25 | 13.75 |
| Time to Peak HRRPUA (s) | 8.75 | 8.00 | 7.75 |
| Peak HRRPUA (kW/m²) | 202.01 | 226.46 | 212.98 |
Cone Calorimeter: 50 kW/m2
| 50 kW/m² R1 | 50 kW/m² R2 | 50 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 4.75 | 5.25 | 4.75 |
| Time to Peak HRRPUA (s) | 5.25 | 5.75 | 5.50 |
| Peak HRRPUA (kW/m²) | 276.02 | 309.43 | 291.44 |
Cone Calorimeter: 75 kW/m2
| 75 kW/m² R1 | 75 kW/m² R2 | 75 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 2.75 | 3.00 | 2.50 |
| Time to Peak HRRPUA (s) | 4.75 | 4.00 | 4.25 |
| Peak HRRPUA (kW/m²) | 367.18 | 315.91 | 346.37 |
Carbon Monoxide (CO) Yield
Carbon monoxide yield was measured during cone calorimeter experiments conducted at heat fluxes of 25 kW/m2, 50 kW/m2, and 75 kW/m2.
This material was tested with and edge frame and calcium silicate substrate.
| Incident Heat Flux [kW/m²] | Mean CO Yield [g/g] | CO Yield Std. Dev. [g/g] |
|---|---|---|
| 25 | 0.005 | 0.001 |
| 50 | 0.004 | 0.001 |
| 75 | 0.003 | 0.0 |
Specific Heat Release Rate
Experiments for specific heat release rate [W/g], were conducted using a micro-scale combustion calorimeter at a heating rate of 30 K/min.
Derived Data
Effective Heat of Combustion (Δhc)
Effective heat of combustion [MJ/kg] is calculated from data collected in micro-scale combustion calorimeter experiments.
Micro-scale Combustion Calorimeter
| Value | R1 | R2 | R3 | Mean | Std. Dev. |
|---|---|---|---|---|---|
| Heat of Combustion (MJ/kg) | 11.86 | 11.68 | 12.72 | 12.09 | 0.45 |
Temperature at Onset of Decomposition
The temperature at onset of decomposition [Tonset] is a derived quantity computed from data collected in simultaneous thermal analyzer experiments.
| 3 °C/min | 10 °C/min | 30 °C/min | |
|---|---|---|---|
| Mean Onset Temperature (°C) | 276 | 294 | 312 |
| Std. Dev. Onset Temperature (°C) | NaN | 3 | 2 |
| Mean Normalized MLR at Onset (1/s) | 1.14e-03 | 1.04e-03 | 9.51e-04 |
| Std. Dev. Normalized MLR at Onset (1/s) | NaN | 0.03e-03 | 0.04e-04 |
| Mean Mass Fraction at Onset | 0.96 | 0.96 | 0.97 |
| Std. Dev. Mass Fraction at Onset | NaN | 0.00 | 0.00 |
| Mean Temperature at end of Decomposition (°C) | 367 | 390 | 414 |
| Std. Dev. Temperature at end of Decomposition (°C) | NaN | 0 | 0 |
Band Averaged Emissivity
Band averaged emissivity was calculated from reflectance measurements conducted with an integrating sphere and Fourier transform infrared spectrometer.
| Source Temperature [K] | Emissivity | Std. Dev. |
|---|---|---|
| 600.0 | 0.895 | 0.002 |
| 800.0 | 0.867 | 0.003 |
| 1000.0 | 0.834 | 0.005 |
| 1200.0 | 0.798 | 0.007 |
| 1400.0 | 0.765 | 0.010 |
| 1600.0 | 0.738 | 0.012 |
| 1800.0 | 0.715 | 0.015 |
| 2000.0 | 0.696 | 0.017 |