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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: Void spacing in exposed concrete flat-work
Author(s): L.E. Rodway
Publication: Concrete International
Appears on pages(s): 83-89
Keywords: cold weather construction; concrete cores;
concrete durability; concretes; curing; long-time study; mix
proportioning; sidewalks; tests.
Abstract:Exposed sidewalks, curb, and gutter in the city of Calgary were used as examples of a means of improving concrete durability. Nearly 200 items affect durability of concrete both in temperate climates and cold regions. The Calgary concrete was subject to rigorous inspection at the time of placing, and each year, for 25 years. At placing it met standard compressive strength requirements, the plastic entrained air requirements, and slump, i.e., it had con-ventionally accepted specifications and materials, and was subjected to conventional enforcement. It was estimated that up to 16 percent of this type of concrete placed in the 25 years prior to 1972 had failed because of scaling, spalling, pitting, and general lack of durability. [Author]
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