Characterization of stone wool properties for fire safety engineering calculations

Research output: Contribution to journalArticle


Prediction of the insulating capability of building products in fire conditions would support the product development process. Stone wool insulation is a widely used material in fire barrier constructions. Due to the combustion of its organic content, the temperature inside stone wool can rise above the temperature of the exposed boundary. This temperature rise is difficult to predict. An extensive test program was performed to obtain the thermal and reaction kinetic properties of stone wool. The test methods included modified slug calorimeter, thermogravimetric analysis, differential scanning calorimetry, micro-scale combustion calorimetry and bomb calorimetry. The thermal conductivity in elevated temperatures was similar for all the investigated products. Two positive mass loss rate and heat release rate peaks were observed in temperatures between 20°C and 700°C. Reaction kinetic parameters were obtained and used in a finite difference model predicting the temperature increase in stone wool upon linear heating.


External organisations
  • Danish Institute of Fire and Security Technology
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Other Civil Engineering


  • micro combustion calorimeter, slug calorimeter, Stone wool, thermal properties, thermogravimetric analysis
Original languageEnglish
Pages (from-to)202-223
Number of pages22
JournalJournal of Fire Sciences
Issue number3
Publication statusPublished - 2018 May 1
Publication categoryResearch

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