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Evaluation of a gypsum based fire seal by finite element calculations: Development of material parameters for Firesafe AS fire sealant, FS-GPG
2014 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Constructing a workable computational model for a specific material can in many ways ease the design of the use of the material in different applications. More precise here, to be able to calculate the thickness of FS-GPG fire mortar sufficient for fire classification according to standards without being forced to make unnecessary tests.Designing a model with material parameters can be made in several different ways. It can either be done by practical inquiry, e.g. scanning different reactions, measure other parameters etcetera or you can make it by estimations of the properties based on the material compounds and construct a model by trial and error. FS-GPG resembles plasterboard/gypsum in many ways. Therefore the model is constructed with properties close to plasterboards properties found in literature. FS-GPG as well as plasterboard or gypsum contains considerable amounts of water. When the material is heated, free water will at first merge from the material. When further heated, dehydration will take place. Two reactions will occur at different temperatures due to dehydration where the gypsum forms new products. At these two reactions, energy is consumed by the water released from the crystals, delaying the temperature enhancement. The greatest achievement from the final model devloped is the comparison of calculated and measured temperature rise after 100 minutes in a specific application. They are almost identical.

Place, publisher, year, edition, pages
2014. , 61 p.
Keyword [en]
Keyword [sv]
Teknik, FS-GPG, Gips, Perlite, Glasfiber, TASEF, Värmeöverföringsmodellering, Brandtätning, Specifik volumetrisk entalpi, FEM
URN: urn:nbn:se:ltu:diva-54376Local ID: b554661b-f64b-4a32-8537-5808614e1b43OAI: diva2:1027757
Subject / course
Student thesis, at least 15 credits
Educational program
Fire Protection Engineer, bachelor's level
Validerat; 20141216 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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