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Experimental results obtained with proposed RILEM durability test method for curtain wall sealants



Title: Experimental results obtained with proposed RILEM durability test method for curtain wall sealants
Author(s): T. G. B. Jones, A. R. Hutchinson, A. T. Wolf
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 34
Issue: 240
Issue date: 2001-07-01
Publication year: 2001
Pages: 332 - 341
Total Pages: 10
Nb references: 11
Language: English


Abstract: Over the past six years,RILEM TC 139-DBS has been developing a RILEM Technical Recommendation (RTR)for a durability test method for curtain wall joint sealants.
As the committee started to converge towards the final test method,the importance of evaluating the behaviour of a set of sealants under comparative conditions became apparent in order to validate the proposed durability test method.
This paper provides a summary of the results obtained with the procedure described in the April 1999 draft.
The study shows that the test method is able to differentiate between products with regard to their resistance to accelerated ageing and mechanical cycling.
The type of failure and the changes in surface appearance observed during the test regime are similar to those observed in actual service conditions.
Sealant degradation resulting from the durability cycles was slower than had been anticipated for most sealant systems.
The dynamic conditioning procedure (mov ment during cure)reduced joint durability for some of the tested products,but increased it for others.
The fatigue cycling clearly accelerated sealant degradation.


Online publication: 2001-05-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13717


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