Abstract
The influence of waste eggshell powder on the combustion characteristics was studied in cork-based materials. The test composite materials which consist of cork particle, eggshell powder and adhesive were formed under high pressure at 150 °C. The combustion characteristics of test samples were evaluated using cone calorimeter according to ASTM E1354. Results were analyzed statistically based on fire safety criterion to determine the effect of the eggshell powder. Results indicated that the eggshell powder has an influence on ignition, heat release rate and CO concentration in all samples. Higher percent weight of eggshell powder leads to longer ignition time on fire and less CO production rate. The cork–eggshell composites burned with low peak of heat release rate, while a larger first peak and earlier second peak were found in no eggshell powder one. This study revealed that the waste eggshell powder significantly retards the fire in cork-based materials.
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