Reaction-to-Fire of Wood Products and Other Building Materials: Part II, Cone Calorimeter Tests and Fire Growth Models.

摘要

This Part II work evaluated results from the bench-scale cone calorimeter tests (ISO 5660-1) for 11 different un-treated wood products, three different fire-retardant-treated (FRT) plywood materials, Type X gypsum board, and FRT polyurethane foam, which were also used in the assessment of reaction-to-fire of common materials using the full-scale room/corner test (ISO 9705) in the Part I report. The evalu-ation consisted of (1) comparing relative flammability of a variety of wood products and deriving thermophysical and fire properties needed for modeling, (2) developing fire growth models for room/corner fire tests that use the cone calorimeter data to predict heat release rate (HRR) develop-ment, and (3) devising reasonable correlations for relating time to flashover to global cone calorimeter data reported as time to ignition (TTI), peak HRR (PHRR), HRR, or peak smoke extinction area (SEA), which provide the link to regulatory test values as described in the Part I report.