03120.doc

SECTION 03120

PART 1

GENERAL

1.1

SUMMARY

A.

Includes But Not Limited To

1.

Design, construction, and safety of formwork.

2.

Furnish and install required formwork ready for placing of concrete.

3.

Strip and dispose of formwork.

A. Related Sections

1.

Section 03300 - Concrete

1.2 REFERENCES

A. American Society For Testing And Materials

1.

ASTM D 1751-83 (1991), 'Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Non‑extruding and Resilient Bituminous Types)'

1.3

SUBMITTALS

A.

Quality Assurance/Control - Manufacturer’s application instructions for form release agent.

PART 2

PRODUCTS

2.1

COMPONENTS

A.

Forms - Wood, metal, or plastic as arranged by Contractor. Forming material shall be compatible with specified form release agents and with finish requirements for concrete to be left exposed or to receive decorative finish.

B. Form Release Agents

1.

Chemically acting type

2. Approved Manufacturers a.

Crete-Lease 727 or 20-VOC by Cresset Chemical Co, Weston, OH (800) 367-2020 b.

Clean Strip (J-1 or J-3 VOC) by Dayton Superior, Oregon, IL (800) 745-3707 c.

E-Z Strip or DEBOND Form Coating by L & M Construction Chemicals, Omaha, NE (800) 362-3331 d.

Rich Cote or Rich Gold E by Richmond Screw Anchor Co, Fort Worth, TX (817) 284-4981

e. Duogard or Duogard II by W R Meadows, Elgin, IL (800) 342-5976

C. Expansion Joints

1.

Manufactured commercial fiber type meeting requirements of ASTM D 1751 and 1/2 inch thick.

2. Acceptable Manufacturers a.

Flexcell by Celotex Building Products Div, Tampa, FL (813) 873-1700 b.

Conflex by Masonite Building & Industrial Products Group, Chicago, IL (800) 257-7885 c.

Sealtight by W R Meadows Inc, Elgin, IL (800) 342-5976

PART 3

EXECUTION

3.1

INSTALLATION

A.

Forms

1.

Assemble forms so forms are sufficiently tight to prevent leakage.

2.

Properly brace and tie forms.

3.

Provide temporary cleanouts at base of tall forms to facilitate cleaning and inspection.

4.

Make proper form adjustments before, during, and after concreting.

5.

Use new forms, or used forms that have been cleaned of loose concrete and other debris from previous concreting and repaired to proper condition. Provide smooth liner on forms used for concrete to be exposed if necessary to attain specified finish quality.

6.

Use metal cold joint forms when unable to place concrete for footings, foundations, and slabs in continuous pours.

B.

Accessories

1.

Provide for installation of inserts, templates, fastening devices, and other accessories to be set in concrete prior to placing.

2.

Position anchor bolts for hold-down anchors and columns and securely tie in place prior to placing concrete.

C.

Form Release Agents

1.

Apply in accordance with Manufacturer's recommendations.

2.

Film thickness shall be no thicker than as recommended by Manufacturer to attain specified finish. Finish shall be of quality equal to CCS-1 or CCS-2 surface as defined by Cresset Chemical.

3.

Allow no release agent on reinforcing steel or footings.

D.

Expansion Joints - Install at joints between floor slab and foundation wall.

E.

Form Removal - Removal of forms can usually be accomplished in 12 to 24 hours. If temperature is below 50 deg F or if concrete depends on forms for structural support, leave forms intact for sufficient period for concrete to reach adequate strength.

END OF SECTION

03120 - 1 H:\8348\8348003.23\Docs\B-3 Specs\Division 3\03120.doc November 1, 2005