Alternative Fire Protection for CL - Timber : A Pilot Study

Sammanfattning: This essay is a feasibility study on alternative fire protection materials for CLT elements. The purpose isto investigate and compile reasonable alternatives to gypsum board and mineral wool which theproject can then continue to work on and to test and evaluate its fire engineering properties.The fire protection standards that exists today in Sweden and the EU for CLT elements are described inoverview as well as the process of material testing at a facility like RISE.The thesis concludes that clay in plaster and board format is a material with great potential from a firetechnical and environmental point of view and is the most suitable material to proceed with forfurther tests and evaluation.The report “Material properties of clay and lime plastics for structural fire design” by Johanna L, JudithK, Alar J, Birgit M, Siim P, 2019, reports good results for the clay's fire-technical properties and shouldbe used as guidance in the project for further studies.This essay also provides suggestions on cross sections to investigate further before testing it’s fireprotection properties.It is also clear that there is a great lack of harmonizing product standards when it comes to clay as abuilding material and that the environmental documentation is deficient compared to traditionalbuilding materials such as plasterboard. The same applies to building boards that are magnesiumoxide-based, these have also had problems with moisture and the quality assurance is uncertain.