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ASTM A886/A886M-10
Standard Specification for Steel Strand, Indented, Seven-Wire Stress-Relieved for Prestressed Concrete
5 стр.
Заменен
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96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
77.140.15 Steels for reinforcement of concrete / Стали для армирования бетона
Сборник (ASTM):
01.04 Steel--Structural, Reinforcing, Pressure Vessel, Railway / Сталь - Конструкционная, арматурная, для сосудов под давлением, рельсовая
Тематика:
Steel--Structural, Tubes, Plate, Coated
Описание
Реферат

This specification covers seven-wire uncoated, indented, stress-relieved carbon steel strands for use in pre-stressed concrete construction. Wire dimensions, indentations, and mechanical properties shall be in accordance to the values specified in this specification. The carbon steel strand is produced to satisfy only the specified mechanical properties, this specification contains no information on the chemical composition of the wires.

Область применения

1.1 This specification covers seven-wire uncoated, indented, stress-relieved steel strand for use in pretensioned prestressed concrete construction. Grade 250I and Grade 270I have minimum ultimate strengths of 250 ksi [1725 MPa] and 270 ksi [1860 MPa], respectively, based on the nominal area of the strand.

1.2 Supplement I describes low-relaxation strand and relaxation testing for that product. Low-relaxation strand shall be furnished when specifically ordered and furnished in place of stress-relieved strand if mutually agreed to by the purchaser and supplier.

1.3 This specification is applicable for orders in either inch-pound units (as Specification A886) or in SI units (as Specification A886M).

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standards. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

Ключевые слова:
indentations; prestressed concrete; seven-wire strand (tendon); steel wire; Indentation; Prestressed concrete; Concrete reinforcement--specifications; Seven-wire strand (tendon); Steel wire (prestressed concrete); Steel wire strand--specifications; Uncoated steel