SECTION 04220

CONCRETE MASONRY UNITS

NOTE ** Smithtown Concrete Products Corp.; architectural concrete masonry units.

NOTE **

NOTE ** This section is based on the products of Smithtown Concrete Products Corporation, which is located at:

NOTE ** Middle Country Road and Arthur Drive

NOTE ** PO Box 612

NOTE ** Smithtown, New York 11787

NOTE ** Tel: 631-265-1815

NOTE ** Fax: 531-265-1977

NOTE ** email: info@smithtownconcrete.com

NOTE ** web: www.smithtownconcrete.com

NOTE **

NOTE ** Smithtown Concrete manufactures a wide variety of concrete masonry units, including Smithstone (a new blasted textured finish), Smooth-Cast (for band coursing and texture changes), Split-Face, Split-Rib, 4-Rib Split-Rib, and Waffle Block. Smithtown Concrete is a third generation family-owned business that is proud of its reputation for producing high quality architectural masonry products.

NOTE **

NOTE ** SECTION 04220 - CONCRETE MASONRY UNITS, Copyright 1999, The Architect's Catalog, Inc.

PART 1 GENERAL

1.1 SECTION INCLUDES

NOTE ** Delete items below not required for project.

A. Concrete masonry units.

B. Reinforcement, anchorage, and accessories.

1.2 RELATED SECTIONS

NOTE ** Delete any sections below not relevant to this project; add others as required.

A. Section 04065 - Mortar and Masonry Grout.

NOTE ** Smithtown recommends the use of cavity vents such as Masonry Technology Inc., CV5010, for weeps in single-wythe concrete masonry walls.

B. Section 04095 - Masonry Weeps and Vents: Weeps for concrete masonry walls.

C. Section 07620 - Sheet Metal Flashing and Trim.

D. Section 07900 - Joint Sealers.

1.3 REFERENCES

NOTE ** Delete references from the list below that are not actually required by the text of the edited section.

A. ASTM A 82 - Standard Specification for Steel Wire, Plain, for Concrete Reinforcement; latest version

B. ASTM A 153/A 153M - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware; 1995.

C. ASTM A 615/A 615M -Standard Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement; latest version.

D. ASTM C 55 - Standard Specification for Concrete Brick; 2002.

E. ASTM C 90 - Standard Specification for Loadbearing Concrete Masonry Units; latest version.

F. ASTM D 226 - Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing; latest version.

G. ASTM C 33 – Standard Specifications for Concrete Aggregates latest version

H. ASTM C 331 – Standard Specification for Lightweight aggregates for concrete masonry units latest version

I. IMIAWC (CW) - Recommended Practices & Guide Specifications for Cold Weather Masonry Construction; International Masonry Industry All-Weather Council; latest version.

J. IMIAWC (HW) - Recommended Practices & Guide Specifications for Hot Weather Masonry Construction; International Masonry Industry All-Weather Council; current edition.

1.4 SUBMITTALS

A. Submit under provisions of Section 01300.

B. Product Data: Provide data for decorative masonry units and fabricated wire reinforcement.

C. Samples: Submit four samples of decorative block units to illustrate color, texture and extremes of color range.

1.5 QUALITY ASSURANCE

A. Water Repellency: Where integral water repellent is required, provide concrete masonry units manufactured so that a water drop placed on an upward-facing, broken concrete textured surface will not be absorbed by the concrete surface for a period of at least four hours; the presence of a salt spot at the location of the water drop after evaporation will provide evidence that the water evaporated and was not absorbed by the concrete masonry unit.

1.6 MOCK-UP

NOTE ** A mock-up panel is strongly recommended; use this Article if finished appearance is a critical project consideration.

A. Construct a masonry wall as a mock-up panel sized 4 feet (1.2 m) long by 4 feet (1.2 m) high, which includes mortar and accessories.

B. Construct mock-up with a southern exposure in location directed by Architect.

C. Maintain mock-up throughout the masonry portion of the work.

D. Remove mock-up when masonry work has been approved by Architect and remove debris from project site.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver, handle, and store concrete masonry units by means that will prevent mechanical damage and contamination by other materials.

1.8 ENVIRONMENTAL REQUIREMENTS

A. Cold Weather Requirements: Comply with recommendations of IMIAWC (CW).

B. Hot Weather Requirements: Comply with recommendations of IMIAWC (HW).

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Provide concrete masonry units as manufactured by Smithtown Concrete Products Corporation, 441 Middle Country Road PO Box 612, Smithtown, New York 11787. ASD. Tel: (631) 265-1815. Fax: (631) 265-1977.

B. Requests for substitutions will be considered in accordance with provisions of Section 01600.

NOTE ** Delete paragraph above or below; coordinate with Division 1 requirements.

C. Substitutions: Not permitted.

2.2 CONCRETE MASONRY UNITS

A. Architectural Concrete Block: Comply with referenced standards and as follows:

1. Load-Bearing Units: ASTM C 90, latest version; except high strength concrete with net area compressive strength of 3500 psi (24.13 MPa); manufactured with integral water repellent.

2. Size: Standard units with nominal face dimensions of 8 x 16 inches (200 x 400 mm) and nominal depths as indicated on the drawings for specific locations.

NOTE ** Delete paragraph above or below.

NOTE **

NOTE ** Standard sizes include nominal 8 x 16 inch face size in depths of 2, 4, 6, 8, 10, and 12 inches.

NOTE **

NOTE ** Nominal face size of 4 x 16 inch is available in nominal 4 inch depth.

NOTE ** 3. Size: Units with nominal face size of 4 x 16 in (100 x 400 mm) and nominal depth of 4 in (100 mm).

NOTE ** Select pattern from options listed below; delete those not required for project.

4. Pattern: Smithstone (simulated stone).

a. Unscored.

b. Center scored.

c. Twin scored.

d. Triple scored.

5. Pattern: Smooth-Cast.

a. Unscored.

b. Center scored.

c. Twin scored.

d. Triple scored.

6. Pattern: Split-Face.

a. Unscored.

b. Center scored.

c. Tri-scored.

7. Pattern: Split-Rib.

8. Pattern: 4-Rib Split-Rib.

9. Pattern: Waffle Block.

10. Special Shapes: As indicated on the drawings for special conditions.

NOTE ** Insulation is optional in 6 inch, 8 inch, 10 inch, and 12 in nominal block sizes. Delete paragraph below if not required. If insulation must be installed in some other location than that described below, edit to suit requirements.

11. Insulation: Include Korfil Block Insulation in all concrete masonry units forming the exterior envelope.

12. Coloring: Color concrete masonry block units with integrally mixed, lightfast, weather-resistant pigment, maintaining uniform color throughout project.

NOTE ** Delete all but one of the following paragraphs describing colors. Each group of colors is a cost category. Even if the actual color is not specified now, it is advisable to choose a color category so that the range of colors to choose from is acceptable. Available colors at publication time are listed below -- verify actual colors for each project.

13. Color: As selected by Architect from manufacturer's Earthtone color range.

14. Color: As selected by Architect from manufacturer's Pastel color range.

15. Color: As selected by Architect from manufacturer's Arctic Frost color range.

16. Color: ________.

NOTE ** - Earthtone Colors:

NOTE ** Natural Grey

NOTE ** Buff Orange

NOTE ** Nathan's Brown

NOTE ** Chocolate

NOTE ** Red

NOTE ** Burnt Orange

NOTE ** Mauve LS

NOTE ** Brick Red

NOTE ** Military Tan

NOTE ** Pekoe Orange

NOTE ** Charcoal L/S

NOTE ** Natural Grey Series 70

NOTE ** - Pastel Colors:

NOTE ** Off White

NOTE ** Beige

NOTE ** Straw Yellow

NOTE ** Peach

NOTE ** Pastel Buff

NOTE ** Dusty Rose

NOTE ** Squash

NOTE ** Antique White

NOTE ** Cocoa EC

NOTE ** Dashboard Green