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Title: Effects of prestrain, outdoor aging, and simultaneous strain cycling on the durability of building sealants

Source: In: Proceedings, 41st annual meeting of the adhesion society. San Diego, CA: 4p.

Author(s)Schueneman, Gregory T.; Lacher, Steven ; Hunt, Christopher G.

Publication Year: 2018  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4707-1B

Abstract: Elastomeric sealants are vital to the construction of energy efficient and water tight buildings. Sealants are a small fraction of the construction budget. Upon failure their removal and reinstallation, and repair of moisture/mold damage can run in to the 10’s of millions with the added risk of illness based litigation. In this research program we are seeking to discern the significance of environmental and strain effects on sealant durability as well as the initial state of stress (aka installation/cure conditions). Sealant bonded specimens are fixtured on automated test instruments and static specimen holders outdoors with three prestrains to simulate winter, spring/fall, and summer installation. The automated test frame imposes hot compression/ cold tension strain cycling in accordance with the temperature of exterior building components simulated here by a section of poly(vinyl chloride) (PVC) pipe. Herein we report the results of 45 months of continuous outdoor exposure.

Keywords: Durability; building sealant; effective modulus; installation condition

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 811 kb(s)

Date posted: 08/09/2018

This publication is also viewable on Treesearch:  view
RITS Product ID: 90952
Current FPL Scientists associated with this product (listed alphabetically)
Hunt, Christopher G.
Research Chemist
Schueneman, Gregory
Supervisory Research Materials Engineer

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