NYC 9/11 Public Portal Document
Battery Park^Kty
Commercial Center Bldg. ’B’
WTC River Water Intake
System Relocations
6. Any concrete which fails to meet the minimum
strength requirements of these Specifications
shall be considered rejected pending verification
of the adequacy of the material by other m.eans.
D. CONCRETE HANDLINGS^ PLACID
1. Concrete for duct bank encasement and manholes
shall, be placed in the dry. Before placing any
concrete all equipment for mixing and transporting
the concrete shall be clean, all debris and ice
shall be removed from the spaces to be occupied by
the concrete and the reinforcement thoroughly
cleaned of ice of other deleterious coatings. All
accumulated water shall be removed from the place
of deposit before concrete is placed.
E. REINFORCEMENT
1. The Subcontractor shall prepare and submit shop
drawings of bar reinforcement for the Contractor's
approval in accordance with the requirements of
the General Conditions. Such drawings sheill .show:
the element identification, bending diagrams, cut
ting lists, inserts, spacers, etc. and shall com
pletely demonstrate the location, size, spacing,
length and bending of the bar reinforcement. Shop
drawings for concrete reinforcement shall be pre-
pared in accordance with the American Concrete
Institute "Manual of Standard Practice: for De-
tailing Reinforced Concrete Structures", ACI-315-
80.
2. Reinforcing cages for each element shall be com
pletely assembled and securely tied and braced so
as to maintain dimensional rigidity during placing
of concrete.
F. FORMS
Forms shall conform to the shape, lines and dimensions
of the elements shown on the Contract Drawings and
shall be substantially free from surface defects and
sufficiently tight to prevent leakage of mortar. They
shall, be properly braced so as to maintain position and
shape during the placing of concrete. Forms shall meet
the requirements of ACI-341-68, "Recommended Practice
for Concrete Framework", and ACI-SP NO. 4, "Framework
for Concrete".
Concrete For
Electrical Work
16030-6
NYC-WTC_000165241
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