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 1392.0 16.0
20.0 1430.0 32.0
30.0 1528.0 17.0
40.0 1569.0 24.0

Dried

Temperature (C) Specific Heat Mean (J/kg-K) Standard Deviation (J/kg-K)
10.0 1116.0 21.0
20.0 1164.0 18.0
30.0 1216.0 23.0
40.0 1266.0 21.0

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 0.138 0.003
45.0 0.147 0.003

Dried

Temperature (C) Conductivity Mean (W/m-K) Standard Deviation (W/m-K)
15.0 0.123 0.003
45.0 0.129 0.003

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 swells and warps into an arched shape during the fire's decay phase. This was observed in the first test (HF25_R1) and prevented in all subsequent tests by the use of tie wires. The source material is less wide than the required sample width for cone calorimeter tests, therefore each sample was comprised of two boards with the seam on center. Asymmetric burning and non-uniform post test conditions based on each half of the sample were observed in some tests, but no pattern has been determined. For individual test notes and select test pictures, follow the link above to Download raw data.

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 swells and warps into an arched shape during the fire's decay phase. This was observed in the first test (HF25_R1) and prevented in all subsequent tests by the use of tie wires. The source material is less wide than the required sample width for cone calorimeter tests, therefore each sample was comprised of two boards with the seam on center. Asymmetric burning and non-uniform post test conditions based on each half of the sample were observed in some tests, but no pattern has been determined. For individual test notes and select test pictures, follow the link above to Download raw data.

Cone Calorimeter: 75 kW/m2

Cone Calorimeter: 25 kW/m2

Cone Calorimeter: 50 kW/m2

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 swells and warps into an arched shape during the fire's decay phase. This was observed in the first test (HF25_R1) and prevented in all subsequent tests by the use of tie wires. The source material is less wide than the required sample width for cone calorimeter tests, therefore each sample was comprised of two boards with the seam on center. Asymmetric burning and non-uniform post test conditions based on each half of the sample were observed in some tests, but no pattern has been determined. For individual test notes and select test pictures, follow the link above to Download raw data.

Incident Heat Flux [kW/m²] Mean CO Yield [g/g] CO Yield Std. Dev. [g/g]
25 0.009 0.001
50 0.004 0.001
75 0.004 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

Soot Yield

Soot yield [g/g] was calculated from smoke obscuration data collected in cone calorimeter experiments conducted at heat fluxes of 25 kW/m2, 50 kW/m2, and 75 kW/m2.

This material swells and warps into an arched shape during the fire's decay phase. This was observed in the first test (HF25_R1) and prevented in all subsequent tests by the use of tie wires. The source material is less wide than the required sample width for cone calorimeter tests, therefore each sample was comprised of two boards with the seam on center. Asymmetric burning and non-uniform post test conditions based on each half of the sample were observed in some tests, but no pattern has been determined. For individual test notes and select test pictures, follow the link above to Download raw data.

Incident Heat Flux [kW/m²] Mean Soot Yield [g/g] Soot Yield Std. Dev. [g/g]
25 0.001 0.001
50 0.003 0.001
75 0.011 0.001

Effective Heat of Combustion (Δhc)

Effective heat of combustion [MJ/kg] is calculated from data collected in both micro-scale combustion calorimeter experiments and cone calorimeter experiments.

Cone Calorimeter Test Notes:
This material swells and warps into an arched shape during the fire's decay phase. This was observed in the first test (HF25_R1) and prevented in all subsequent tests by the use of tie wires. The source material is less wide than the required sample width for cone calorimeter tests, therefore each sample was comprised of two boards with the seam on center. Asymmetric burning and non-uniform post test conditions based on each half of the sample were observed in some tests, but no pattern has been determined. For individual test notes and select test pictures, follow the link above to Download raw data.

Micro-scale Combustion Calorimeter

Value R1 R2 R3 Mean Std. Dev.
Heat of Combustion (MJ/kg) 12.31 13.38 11.15 12.28 0.91

Cone Calorimeter

Incident Heat Flux [kW/m²] Mean Effective Heat of Combustion [MJ/kg] Effective Heat of Combustion Std. Dev. [MJ/kg]
25 13.7 0.3
50 14.5 0.2
75 15.2 0.3