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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Comparison of Sealant Specifications
Author(s): Julian R. Panek
Publication: Special Publication
Appears on pages(s): 193-202
Keywords: adhesion; curing; hardness; joint sealers; performance; specifications; tests; Construction
Abstract:A review of dynamic sealant specifications reveals loopholes that are abused. The inadequate exposure of test assemblies does not reflect actual conditions facing sealants on the jobsite. The low requirements and loose criteria of most specifications allows borderline sealants to pass but have been observed to fall on outdoor exposure--thus pointing to inadequacies in present specifications. Aging criteria have been reviewed. Recommendations are given for closing the loop holes, broadening testing to include tests on sealants before and after any heat aging followed by water immersion, and heat aging followed by water immersion that are average conditions facing sealants on any jobsite. Performance requirements have also been upgraded to better reflect less volatile components in sealant systems. The recommendations given can be met by some sealants available on the market today.
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