TY - JOUR A1 - Bartholmai, Matthias A1 - Schartel, Bernhard T1 - Assessing the performance of intumescent coatings using bench-scaled cone calorimeter and finite difference simulations T2 - Fire and materials N2 - A method was developed to assess the heat insulation performance of intumescent coatings. The method consists of temperature measurements using the bench-scaled experimental set-up of a cone calorimeter and finite difference simulation to calculate the effective thermal conductivity dependent on time/temperature. This simulation procedure was also adapted to the small scale test furnace, in which the standard time-temperature curve is applied to a larger sample and thus which provides results relevant for approval. Investigations on temperature and calculated effective thermal conduction were performed on intumescent coatings in both experimental set-ups using various coating thicknesses. The results correspond to each other as well as showing the limits of transferability between both fire tests. It is shown that bench-scaled cone calorimeter tests are a valuable tool for assessing and predicting the performance of intumescent coatings in larger tests relevant for approval. The correlation fails for processes at surface temperatures above 750°C, which are not reached in the cone calorimeter, but are attained in the small scale furnace set-up. PB - Heyden CY - London KW - Intumescent coatings KW - Cone calorimetry KW - Numerical analysis KW - Small scale test furnace PY - 2007 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/14645 AN - OPUS4-14645 SN - 0308-0501 SN - 1099-1018 VL - 31 IS - 3 SP - 187 EP - 205 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany