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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: Specifications Should Be Realistic
Author(s): Harry F. Thomson
Publication: Journal Proceedings
Appears on pages(s): 205-218
Keywords: no keywords
Abstract:Specifications for concrete in moderate-sized and lesser construction frequently contain provisions which are ambigious, conflicting in application, or do not fully recognize local materials. Most of these questionable features result from (1) inadaquate understanding of the characteristics of concrete, or (2) use of ready-written specifications without revision for conditions or changes in standard requirements. Among the features discussed are: specifying both method and result; "frozen" specifications; habitual use of "1-2-4"; multiple provisions for quality; strength without naming consistency; recognition of local materials; use of compression tests; time of placing; bin-test of cement. Numeruos quotations from specifications are given, and suggestions offered for bringing the provisions in line with actual conditions.
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