Abstract

Concrete for construction material, comparing with steel, has characteristics that the quality is affected very much by practical construction procedures in site. For minimizing defects of concrete structures it is important to pay our attention not only to the methodology of construction itself but also to the management system such as a format of specifications. Recently highlighted problems have been discussed that cover a relationship between slump value and workability of fresh concrete, and between curing period and methods. A new format for special specification of the articles on concreting is proposed for practical use of Proposed Recommendation on Durability Design for Concrete Structures published by JSCE.

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