Fire tests on coverings with a substrate of cellular plastics

Riitta Kajastila

Research output: Book/ReportReport

Abstract

The report contains results from various small scale fire tests carried out on typical coverings on a substrate of cellular plastic materials. The ordinary testing of coverings is presently done on a substrate of particle board, but the results obtained here show that the fire protection time obtained in these tests may not always be applicable to other substrates. For the same covering the fire protection time may vary by a factor of almost 10 depending on the substrate. The report also states that a temperature of 190 °C is considered to be a safe critical surface temperature for a substrate of polyurethane and 100 °C for a substrate of polystyrene. The critical temperatures for substrates can be determined accurately with both an ignitability apparatus in accordance with ISO 5657 or a cone calorimeter, both operated at a heat flux level of 30 kW/m2. The results also showed that one must also take into consideration the interaction between the covering and the substrate and not base classification only on the deterioration temperature of the polymeric substrates. It was particularly noticed that humidity from water containing covering materials causes strong deformations of substrates of cellular plastics.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages42
ISBN (Print)951-38-3508-1
Publication statusPublished - 1989
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Number632
ISSN0358-5077

Fingerprint

coverings
plastics
critical temperature
deterioration
surface temperature
calorimeters
humidity
heat flux
polystyrene
cones
temperature
causes
water

Keywords

  • fire tests
  • fire protection
  • fire resistance
  • coverings
  • cellular plastics
  • substrates
  • critical temperature
  • surface temperature

Cite this

Kajastila, R. (1989). Fire tests on coverings with a substrate of cellular plastics. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 632
Kajastila, Riitta. / Fire tests on coverings with a substrate of cellular plastics. Espoo : VTT Technical Research Centre of Finland, 1989. 42 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 632).
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Kajastila, R 1989, Fire tests on coverings with a substrate of cellular plastics. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 632, VTT Technical Research Centre of Finland, Espoo.

Fire tests on coverings with a substrate of cellular plastics. / Kajastila, Riitta.

Espoo : VTT Technical Research Centre of Finland, 1989. 42 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 632).

Research output: Book/ReportReport

TY - BOOK

T1 - Fire tests on coverings with a substrate of cellular plastics

AU - Kajastila, Riitta

PY - 1989

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AB - The report contains results from various small scale fire tests carried out on typical coverings on a substrate of cellular plastic materials. The ordinary testing of coverings is presently done on a substrate of particle board, but the results obtained here show that the fire protection time obtained in these tests may not always be applicable to other substrates. For the same covering the fire protection time may vary by a factor of almost 10 depending on the substrate. The report also states that a temperature of 190 °C is considered to be a safe critical surface temperature for a substrate of polyurethane and 100 °C for a substrate of polystyrene. The critical temperatures for substrates can be determined accurately with both an ignitability apparatus in accordance with ISO 5657 or a cone calorimeter, both operated at a heat flux level of 30 kW/m2. The results also showed that one must also take into consideration the interaction between the covering and the substrate and not base classification only on the deterioration temperature of the polymeric substrates. It was particularly noticed that humidity from water containing covering materials causes strong deformations of substrates of cellular plastics.

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KW - fire protection

KW - fire resistance

KW - coverings

KW - cellular plastics

KW - substrates

KW - critical temperature

KW - surface temperature

M3 - Report

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T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports

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ER -

Kajastila R. Fire tests on coverings with a substrate of cellular plastics. Espoo: VTT Technical Research Centre of Finland, 1989. 42 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 632).