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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: Identification and Control of Consolidation-Related Surface Defects in Formed
Author(s): ACI Committee 309
Publication: Concrete International
Appears on pages(s): 55-65
Keywords: aggregates; amplitude; concretes; consistency; consolidation; discoloration; formwork (construction); mix proportioning; placing; preplaced aggregate concrete; quality control; surface defects
Abstract:Provides guidelines for identifying and controlling consolidation-related surface defects in precast or cast-in-place concrete. A summary of direct and in-direct causes of such defects, some of which are frequently attributed to inadequate consolidation, is included. An outline to assist reporting surface condi-tions, and photographs illustrating typical concrete surface defects are also included. Surface defects may be minimized by planning during design and specification stages. Equally important is employing trained and motivated supervisory and construction personnel to achieve intended concrete finishes and surface textures. The report emphasizes consolidation factors that prevent surface defects. The reader is cautioned that concrete is a handcrafted product; therefore, other potential causes may exist beyond those listed in this report.
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