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Standard Specification for Steel Fibers for Fiber-Reinforced Concrete
Automaticky přeložený název:
Standard Specification pro ocelová vlákna na vlákno, železobeton
NORMA vydána dne 1.10.2011
Označení normy: ASTM A820/A820M-11
Poznámka: NEPLATNÁ
Datum vydání normy: 1.10.2011
Kód zboží: NS-4392
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
acceptance testing, classification, fiber-reinforced concrete, steel fibers, tensile strength, testing procedures: Concrete reinforcement--specifications, Melt-extracted steel fibers, Steel bars (concrete reinforcement- specifications), Steel fibers, Steel wire (concrete reinforcement applications)--specifications, ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
1. Scope | ||||||||||||||
1.1 This specification covers minimum requirements for steel fibers intended for use in fiber-reinforced concrete. Five types of steel fibers for this purpose are defined as pieces of smooth or deformed cold-drawn wire; smooth or deformed cut sheet; melt-extracted fibers; mill-cut or modified cold-drawn wire steel fibers that are sufficiently small to be dispersed at random in a concrete mixture. 1.2 This specification provides for measurement of dimensions, tolerances from specified dimensions, and required minimum physical properties, and prescribes testing procedures to establish conformance to these requirements. 1.3 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of a conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail. The purchase order requirements shall not take precedence if they, in any way, violate the requirements of the product specification or this specification; for example, by the waiving of a test requirement or by making a test requirement less stringent. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. |
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2. Referenced Documents | ||||||||||||||
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