Air sampling protocol document, 130 Cedar Street, Jan 2005

NYC 9/11 Public Portal Document

130 Cedar Street July 15, 2004 Selective Demolition and Façade Restoration Koenen Associates

• 1. Mortar materials, each material and mortar types. 2. Certification of mortar mix. 3. Flashing material, descriptive literature.

1.05 PRODUCT HANDLING

A. General: Deliver, store, handle and protect all materials form damage, moisture, dirt and Intrusion of foreign matter. Store all masonry units and mortar materials on raised platforms and under ventilated and waterproof cover. Store packaged materials in Manufacturer's unopened containers, marked with manufacturer's name and product brand name. Immediately reseal containers after partial use. Remove and replace damaged materials.

B. Masonry Units: Pack, deliver and store to prevent breakage, cracking, chipping, spalling or other damage. Store, protect and ventilate units at project site.

C. Aggregate: Store with provisions for good drainage.

D. Reinforcement and Anchors: Store and protect so that when placed, joint reinforcementand anchors will be free of soil, dirt, Ice loose rust, scale, or other coatings which would destroy or reduce bond with mortar and will not be disfigured or bent out of shape.

1.06 JOB CONDITIONS

A. In cold weather, when the outside temperature is below forty (40) degrees F., the temperature of the masonry, when laid, shall be above forty (40) degrees F., and maintained on both sides of the masonry wall for at least seventy-two (72) hours. All water, sand and masonry units must be heated so that temperature of masonry when laid will be over forty (40) degrees F,. No anti-freeze admixtures will be allowed. Conform to the requirements of Cold Weather Masonry Construction and Protection Recommendations: publication by Brick Institute of America (BIA).

PART 2.00 - PRODUCTS

2.01 MATERIALS A. Brick

1. Size: Unless otherwise Indicated, provide bricks of size, color and texture to match existing.

2. Facing Brick: ASTM C216, Grade SW, Type FBX.

3. Where brick Is fully concealed provide common brick conforming to ASTM C26, Grade SW.

4. Provide special molded shapes Including lip bricks, where Indicated and for application requiring brick of form, size and finish on exposed surfaces which coat be produced from standard modular brick sizes by sawing.

5. For sills, and similar applications resulting in exposure of brick surfaces which otherwise would be concealed from view, provide uncured units with all exposed surfaces finished.

C] Unit Masonry 04200-2

NYC-WTC 000125159