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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.
Showing 1-5 of 8 Abstracts search results
June 1, 1993
Editor: D. Gerry Walters
An ACI publication providing information on an assortment of polymer concrete-related topics. Polymers are gaining increasing use in concrete due to the fantastic properties that they can provide. Polymer concrete is used for repairs, bridge deck and floor overlays, precast products, and structural members. Other uses are continuously under development.
H. H. Weber, Jr..
There is a growing interest in rapid-setting and high-strength materials of construction that can also reduce the rising costs of maintenance and improve productivity. The Sulphur Institute, in cooperation with the Bureau of Mines and a small group of dedicated construction contractors, has encouraged research and development activities to devise new and advanced sulfur construction materials. Sulfur polymer cement concrete (SC) is used in hostile chemical environments where corrosion due to acid and/or salt exposure results in failure of such conventional materials as portland cement concrete. SC is also finding valuable uses in other applications. SC is gaining recognition in the increasing market for corrosion-resistant materials. Examples of construction and maintenance projects utilizing SC are described for chemical environments encountered during production of sulfuric acid, ammonium sulfate, phosphoric acid, potash, and other fertilizer materials, and compared with the performance of conventional construction materials. SC materials show no signs of deterioration due to acid and salt corrosion after approximately 9 years of industrial testing. New and expanding applications for SC are also explored. In addition to the summary of industrial projects, newly developed construction equipment, SC precast production, and other new and innovative applications are presented. 140-393
Y. Ohama, K. Demura, S. N. Pareek, and M. A. R. Bhutta
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.
M. Kawakami, H. Tokuda, M. Kagaya, and R. Nasu
Reinforced concrete pipe used as sewer pipe is required to have excellent durability, especially chemical resistance, in addition to high strength and good economy. A precast composite pipe, in which a reinforced concrete pipe is lined with polymer mortar as soon as centrifugal compaction and drainage have been completed, was developed and investigated. Chemical resistance of the polymer mortar exposed to acidic and alkaline water was studied first by immersion tests and manufacturing process of the composite pipe was introduced next. Subsequently, load tests were carried out and elastic behavior, cracking, and breakable strength of the pipes were investigated. Finally, a reasonable design method for the composite pipe is discussed and proposed.
J. J. Fontana
Steel fiber reinforced polymer concretes were developed for utilization in large precast vaults. The data obtained indicate that polyester resin concrete reinforced with steel fibers will provide a ductile composite allowing structural engineers to design vaults capable of withstanding HS-20 loadings. Epoxy resin concretes exhibit higher flexural strengths; however, they do not carry loads beyond the yield point of the composite and are considered too brittle for this application. Several vaults were cast and have been placed in service.
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