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ASTM Selected Technical Papers
Science and Technology of Building Seals, Sealants, Glazing, and Waterproofing
By
CJ Parise
CJ Parise
1
Smith, Hinchman & Grylls
,
Detroit, MI 48226
;
symposium chairman and editor
.
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ISBN-10:
0-8031-1482-6
ISBN:
978-0-8031-1482-1
No. of Pages:
176
Publisher:
ASTM International
Publication date:
1992

Due to changes in environmental conditions, such as temperature, building joints move continuously. Accordingly, sealants in joints are subjected to such movements from the time of application. Failures of sealant in joints, such as cracking, breakage, and deformation, particularly those which occur in the short period of time after a sealant has been applied, may be caused by the movement of joints during the sealant curing. Up to the present, various research and testing methods in building material standards do not focus on performance against these failures. To study the relation between failure of sealants and the movement of joints, a testing apparatus was designed and dynamic outdoor exposure tests were conducted of various kinds of sealants. Failure of sealant attributable to joint movement during curing was found to occur in four patterns. These findings correspond to sealant failures actually observed in buildings in service.

1.
Kato
,
M.
, “
The Study of Influence of Movements Under Cure
” (in Japanese),
Summaries of Technical Papers of Annual Meeting 1971
,
Architectural Institute of Japan
.
2.
Koike
,
M.
, “
Study on the Durability of Sealants
” (in Japanese),
Summaries of Technical Papers of Annual Meeting 1977
,
Architectural Institute of Japan
.
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