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Foundation Specifications for WTC River Intake Relocation

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Construction specifications document detailing foundation requirements for the World Trade Center river water intake system relocation project.

NYC-WTC_000165112–000165243

Folder label: “WORLD TRADE CENTER - RELOCATION OF RIVER WATER INTAKE LINES & PUMP STATION ELECT. POWER & COMM. LINES

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NYC 9/11 Public Portal Document

Battery City Commercial Center Bldg. 'B* WTC River Water Intake System Relocations

tion A615-80. G. Conerete Design 1. Concrete shall be composed of materials meeting the requirements of this section, proportioned so as to provide the minimum specified compressive strength for that portion of the work. 2. The working consistency of the concrete shall be the slump test described in ASTM Specification C- 143-81 Current Edition. 3. Each of the constituent materials of the concrete shall be accurately measured by weight, unless otherwise specified or approved by the Contractor, and the method of measurement shall be such as to secure the specified proportions in each batch. 4. Coarse aggregate shall have a maximum size of 3/4 inch unless the size is otherwise limited by the spacing of the reinforcing in the concrete. 5. The Subcontractor shall employ and pay for, as part of his contract price, and approved Testing Laboratory to design a series of concrete mixes using the materials and sources which he proposed to employ during the Construction of the Work. Concrete design mixes shall produce an average strength 15% higher than the minimum 28"<3ay strength specified.

PART III ~ EXECUTION A. Batching of Material 1. The materials shall be measured in conformance with the requirements of the ASTM Specification C94-78. Weight-batch apparatus for conventional type mixers shall also meet the same requirements. z> Bulk cement shall be weighed on scales having a degree of control and accuracy such that the de­ livered weight shall be correct within one per­ cent. The scale and weight hopper shall be sepa­ rate and distinct from those used for other mater­ ials. Cement may be batched on a bag basis; the weight of a bag of Portland Cement (U.S.) shall be taken as 94 pounds and only whole units are to be

Concrete For Mechanical Work 15050-3 NYC-WTC_000165192

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NYC-WTC_000165192Source: NYC Law Department, mirrored locally

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NYC-WTC_000165064 · Box DEP Box 44

Request documentation regarding the relocation of river water intake lines and pump station utilities at the World Trade Center.

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