Tolerances in Concrete Construction AWCI（在混凝土施工AWCI公差）.pdf

Tolerances in concrete construction We need greater clarity and realism in specifications and also agreement on how tolerances are to be measured and what to do in specific instances of noncompliance By the Editorial Staff of precision in building, and the rela- wall may be small compared with the Concrete Construction tion of all this to cost. surface of a dam to be viewed from a The need to specify tolerances considerable distance. Within a hen a contractor finds that hydraulic structure tolerances must From among the possible defini- Wsomething won’t fit, or when tions of tolerance the one we have be specified to ensure that friction the architect or owner thinks that the losses are not high enough to signif- chosen to use in this article is given in walls aren’t vertical or straight or icantly reduce hydraulic capacity or that the floors aren’t flat or level Cement and Concrete Terminology, efficiency. Tolerances in hydraulic by American Concrete Institute enough, someone is unhappy with the conduit