NYC 9/11 Public Portal Document
D. CONCRETE HANDLING & PLACING
1. Foundations Concrete for pile caps, scabs, beams, girders
retaining walls and miscellaneous member's shall- be placed in the dry.
Before placing any concrete ail 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 or
other deleterious coatings. All accumulated water shall
be removed from the place of deposit before concrete is
placed. Dropping of concrete through water will not be
permitted.
2. The Subcontractor's attention is drawn to the expected
difficulty involved in transporting materials across the
aforementioned utility lines by truck unless a temporary
bridge is installed.
E. REINFORCEMENT
1.. The Subcontractor shall prespare and submit shop drawings
of bar reinforcement for the Contractor’s approval in accord
ance with the requirements of the General Conditions. Such
drawings shall show; the element identification, bending dic--
grams, cutting, lists, inserts, spacers etc. and shall
completely demonstrate the location, size, spacing, length
and bending of the bar reinforcement. Shop drawings for
concrete reinforcement shall be prepared i.n accordance with the
American Concrete Institute "Manual of Standard Practice for
Detailing Reinforced Concrete Structures", ACI-315.
2. Reinforcing cages for each element shall be completely
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, work", and
ACI-SP No. 4, "Formwork for Concrete".
BPC-COMMERCIAL CENTER 03315-5
FOUNDATION CONCRETE
CUL-DE-SAC
NYC-WTC_000165156
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