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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: Underwater Adhesion of Polymethyl Methacrylate Mortars
Author(s): Y. Ohama, K. Demura, S. N. Pareek, and M. A. R. Bhutta
Publication: Special Publication
Appears on pages(s): 93-108
Keywords: adhesion; bonding; coupling agents; mortars (material); strength; polymethyl methacrylate; underwater construction; Materials Research
Abstract:There is no reported work on the placing or bonding of polymethyl methacrylate (PMMA) mortars underwater. In this paper, PMMA mortars with and without coupling agents are prepared, and the applicability of underwater placing and bonding of PMMA mortars is examined, with the objective of performing underwater construction, which has gained popularity in recent years. PMMA mortars are tested for adhesion in flexure and tension to preplaced PMMA mortar substrates, and for flexural and tensile strength. It is concluded from the test results that the strength properties of PMMA mortars placed and bonded underwater are somewhat improved by the addition of a silane coupling agent, permitting the mortars to develop suitable strength and adhesion. PMMA mortars are applicable for underwater concreting if their appropriate binder system formulations are selected.
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