NYC 9/11 Public Portal Document
Battery Park city
Commercial Center Bldg. ’B*
WTC River Water Intake
System Relocations
than No. 200 Sieve in Aggregates (A.S.T.M. Desig
nation: C117) of the American Society for Testing
and Materials.
2. Coarse aggregate shall consist of clean, hard,
strong, durable gravel or curshed stone. Crushed
stone shall be dolomitic limestone or trap rock,
Coarse aggregate shall be free from injurious
amounts of soft. friable, thin, elongated or lami-
nated pieces, alkali, loam, clay, organic or other
deleterious matter, and shall be free from, an
amount of material finer than No. 200 sieve in ex"
cess of one-half of one percent, and shall be
graded in accordance with ASTM designation C136.
C. CEMENT
1. Cement shall be Portland Cement, Type IZt, comply
ing with the requirements of ASIM Designation C-
175.
D. WATER
1. Water for mixing and curing concrete and mortar
shall be fresh, clean water suitable for drinking
purposes.
E. REINFORCEMENT
1. Reinforcement shall be as shown on dravnings snd ns
specified in this Section.
F. FORMS
1. Forms shall be constructed and of sufficient
strength so that the finished concrete will con
form to the shapes, lines and dimensions shown on
the Contract Drawings. They shall be substan
tially built and sufficiently tight to prevent
leakage of water and grout and shall be properly
and securely braced in order to maintain their
true position and shape within the required toler
ances. If any form loses its proper shape or
position, it shall be immediately repaired to the
satisfaction of the Constructor or removed and im
mediately replaced with a new form.
2. The inside of forms shall be thoroughly cleaned
before concrete is placed in contact with the
form, and except where a scored finish is re-
Concrete For
Electrical Work
Ifin^n-T
NYC-WTC_000165238
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