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Keywords: sealant
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7712-3
... damages to sealed joints. In addition, we assessed damages to sealed joints when joint movements were added during the curing process. The small fatigue testing device consists of three parts: a displacement regulator part that repetitively applies specific deformation to sealants, a load measurement part...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
ISBN: 978-0-8031-7653-9
... Studies concerning the relative weatherabilities of sealants are often made by comparing the different polymer backbones, e.g., silicone versus polyurethane or silane-terminated polymers. In 2014, ASTM Committee C24 presented a comparison of different sealant types after accelerated weathering...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
ISBN: 978-0-8031-7653-9
... A description of the sealant jointing product test device is given herein that includes information on its operation and results from its use in subjecting sealant products to fatigue resistance tests. In the first instance, a novel benchtop sealant test device was developed that permits...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
ISBN: 978-0-8031-7653-9
... The recent introduction of ASTM C1735, Standard Test Method for Determining Tensile Adhesion Properties of Structural Sealants , allows a durability assessment of a sealant joint assembly without incurring destruction. Conventional testing of sealant assemblies to ASTM C1135, Standard Test...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
ISBN: 978-0-8031-7653-9
... Determining design life in less than real time has eluded researchers for decades. ASTM has recently issued a new standard, ASTM C1850, that outlines a procedure for developing accelerated testing methods to determine the design life of a sealant. This paper will use this new standard...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
ISBN: 978-0-8031-7653-9
... concerns. However, in developing and implementing repairs for existing buildings, the application of an air barrier can require repair solutions from the interior due to site conditions, budget constraints, building occupants, or other factors. Sealants, in combination with SPFs, have been successfully...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7611-9
... Comparisons concerning the durability of sealants are often made by focusing on different polymer backbones such as silicones versus polyurethanes or silane-modified polymers. At first sight, this approach seems to give a clear and coherent picture of all products and types of polymers...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7611-9
... Many questions have been raised on how we can practically measure and predict the durability and service life of structural silicone sealants. Meanwhile, facade engineers have many requirements for the reliability of structural silicone sealants. Thus, accelerated reliability engineering...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7611-9
... An empirically based statistical method has been created to predict the relative change in modulus for a sealant exposed to outdoor weathering. This method has not been validated. The underlying high-precision data supporting this method was obtained using the National Institute of Standards...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7611-9
... This study evaluated panel staining around sealed joints using outdoor-exposure and indoor-accelerated staining tests. The outdoor-exposure staining test was performed for one-component silicone sealant (SR-1) and one-component modified silicone sealant (MS-1) at exposure sites in South Korea...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7611-9
... There are many elastomeric joint sealant applications in construction such as structural glazing, weatherproofing, and insulating glass fabrication, etc. Each sealant joint requires unique durability functions to perform well through building life cycle. The use of elastomeric joints...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7611-9
... was unable to accommodate the crack displacement and dynamic movement, resulting in tearing of the membrane. Inadequate concrete reinforcement and an absence of control joints or concrete crack treatment prior to membrane placement contributed to the membrane tearing. Details involving sealant joint design...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7611-9
... The working life of a sealed joint depends on its inherent durability—determined by joint design, sealant selection, and installation—and on its regular maintenance. Considerable work in the past has focused on the durability of building joint sealants, while less emphasis has been placed...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-3426-3
... Silicone sealants have a long history of successful use in high performance windows and curtainwalls, such as structural glazing systems. With the recent threat of terrorist attacks, there has been an increased use of windows designed to mitigate the impact of bomb blasts. Due to the high...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-3426-3
... This paper presents information on the weatherability of construction sealants based on a newly developed test specimen design that allows simultaneous exposure of the sealant to forced compression and extension movement in a single specimen. In this study, exposure to cyclic movement...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-3426-3
... The current measurement test method to assess elastomeric sealant durability is ASTM C719. This method requires a minimum of five weeks of curing and conditioning before being subjected to ten movement cycles at room temperature and then ten movement cycles at variable temperatures. This method...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-3426-3
... The effects of applied strain on sealants exposed to outdoor weathering were examined for two sealant formulations, Sealants A and C. Both static and dynamic strain was applied to the sealants during the summer in a Gaithersburg, MD outdoor location. Both sealants exhibited a reversible change...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2006
ISBN-10: 0-8031-3414-2
ISBN: 978-0-8031-3414-0
... The premise is that if one reduces sealant fatigue by lowering modulus while leaving other characteristics of a sealant unchanged, its durability will improve. Reducing sealant fatigue is seen as a positive consequence of lowering the modulus of elasticity of a sealant. The data shows the effect...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2006
ISBN-10: 0-8031-3414-2
ISBN: 978-0-8031-3414-0
... Although construction sealants are used for all kinds of construction joints such as static joints with little movement, dynamic joints with thermal or seismically induced movement, and so on, the general test methods employed in the evaluation of the weatherability of construction joint...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2006
ISBN-10: 0-8031-3414-2
ISBN: 978-0-8031-3414-0
... of times. Second, the three criteria required to create a joint design method were investigated, i.e., type of sealant, effect of cross-sectional size and shape of the sealed joint, and fatigue resistance of the sealant at intersectional zones of sealed joints to the sliding and rocking motions of curtain...