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// CODE SNIPPET

1905.1.3 Basis of F'c

NYC Building Code 2014 > 19 Concrete > 1905 Concrete Quality, Mixing and Placing > 1905.1 General > 1905.1.3 Basis of F'c
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Unless otherwise specified, f'c shall be based on 28-day tests. If other than 28 days, test age for f'c shall be as indicated in construction documents. If at any time during the concrete operations, the concrete is not in conformance with ASTM C 94 or is otherwise compromised, it shall be rejected. If it is placed, the location of the load shall be recorded and a pair of cylinders shall be molded from the load per ASTM C 31 and included in the average f'c.

Related Code Sections


1905.1.3 Concrete, Basis of F'C
Unless otherwise specified, f' c shall be based on 28-day tests. If other than 28 days, test age for f' c shall be as indicated ...
NYC Building Code 2008 > 19 Concrete > 1905 Concrete Quality, Mixing and Placing > 1905.1 General > 1905.1.3 Basis of F'C
1905.1.3 Concrete, Basis of F'c
Unless otherwise specified, f' c shall be based on 28-day tests. If other than 28 days, test age for f' c shall be as indicated in construction ...
NYC Building Code 2014 > 19 Concrete > 1905 Concrete Quality, Mixing and Placing > 1905.1 General > 1905.1.3 Basis of F'c
1905.1.3 Concrete, Basis of F'c
Unless otherwise specified, f' c shall be based on 28-day tests. If other than 28 days, test age for f' c shall be as indicated in construction ...
NYC Building Code 2022 > 19 Concrete > 1905 Concrete Quality, Mixing and Placing > 1905.1 General > 1905.1.3 Basis of F'c
Article 19 Reinforced Concrete and Plain Concrete Construction [PDF] (page 13)
of concrete shown below f'c=2000 f'c=2500 f'c=3000 f'c=3500 f'c=4000 psi psi psi psi psi Maximum value psi n=15* n=12* n=10* n=8.6* n=7.5* f'c=5000 psi n ...
NYC 1938 Code [PDF] > 19 Reinforced Concrete and Plain Concrete Construction
1809.6.2.1 Soils and Foundations, Materials
Concrete shall have a 28-day specified compressive strength ( f'c ) of not less than 3,000 psi (20.68 MPa) ...
NYC Building Code 2014 > 18 Soils and Foundations > 1809 Driven Piles > 1809.6 Precast Concrete Piles > 1809.6.2 Precast Nonprestressed Piles > 1809.6.2.1 Materials
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