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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: Concrete Mixtures and Construction Needs
Author(s): James M. ShilstoneE, Sr. and James M. Shilstone, Jr.
Publication: Concrete International
Appears on pages(s): 53-57
Keywords: concrete construction; concrete durability; mix proportioning; mortars (material); rheological properties; workability; Construction
Abstract:Describes the problems that occur with concrete placement that contribute to progress delays, unnecessary rework, rejections and replacement, high safety factors, and variable durability. The problems are rooted in the changes that have occurred in needs and materials without comparable changes in practices. The solutions lie in providing well-balanced, consistent mixtures with good rheological properties, control and maintenance of an adequate slump, and provision of adequate mortar for pumpability and finishability. Other parameters which may be important for a particular project include low water demand, minimization of bleeding, rapid or slow time of set, and early strength to facilitate form cycling.
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