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Abstract
Since a few years, the waterproofing sector has changed a lot in the field of products and membranes as well as application methods. As for the stiff concrete decks, they are slowly giving way to lighter steel decks, and the thickness of the insulation layer has grown thicker to reach very high thermal resistance values. The aim of this work is to present the study carried out on dimensional stability of waterproofing membranes and to prove the interst of a new test trial on a larger scale. Several methods can be used in the lab to measure the dimensional stabilty of the membranes. The correlation obtained between these results and the roof's results is not perfect. That's why we developed a new test method, on a larger scale, taking into account much more parameters as size of overlap, scale effect. The results obtained bring the evidence into light of the relation between the type(s) of reinforcements composig the membrane and its stability. In view of this knowledge, the application method can be improved and optimized so as to ensure the roof's longevity.
Since a few years, the waterproofing sector has changed a lot in the field of products and membranes as well as application methods. As for the stiff concrete decks, they are slowly giving way to lighter steel decks, and the thickness of the insulation layer has grown thicker to reach very high thermal resistance values. The aim of this work is to present the study carried out on dimensional stability of waterproofing membranes and to prove the interst of a new test trial on a larger scale. Several methods can be used in the lab to measure the dimensional stabilty of the membranes. The correlation obtained between these results and the roof's results is not perfect. That's why we developed a new test method, on a larger scale, taking into account much more parameters as size of overlap, scale effect. The results obtained bring the evidence into light of the relation between the type(s) of reinforcements composig the membrane and its stability. In view of this knowledge, the application method can be improved and optimized so as to ensure the roof's longevity.
Date
6/1998
6/1998
Author(s)
Patrick Cogneau; Greg Perkins; Philippe Thiriaux
Patrick Cogneau; Greg Perkins; Philippe Thiriaux
Page(s)
391-403
391-403
Keyword(s)
modified bitumen; dimensional stability
modified bitumen; dimensional stability