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Div. 07920  |
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Guide Spec. No. 790
SEALTIGHT® CERA-ROD®
| Specifier Notes: This guide specification is written according to the Construction Specifications Institute (CSI) Format. The section must be carefully reviewed and edited by the Architect or Engineer to meet the requirements of the project. Coordinate this section with other specification sections and the drawings. |
| Specifier Notes: W.R. Meadows SEALTIGHT CERA-ROD Nongassing, Heat-Resistant Backer Rod is a round, flexible, continuous-length, nonabsorbent, nongassing, nonstaining, nonshrinking, cross-linked, closed-cell polyethylene backer rod for use in hot-pour sealing applications in joints and large cracks in concrete and asphalt. |
PART 1 GENERAL
1.1 SECTION INCLUDES
- A. Backer rod for hot-pour sealing applications in joints and large cracks in concrete and asphalt.
1.2 RELATED SECTIONS
| Specifier Notes: Edit the list of related sections as required for the project. List other sections dealing with work directly related to this section. |
- A. Section 02740 - Flexible Pavement.
- B. Section 02750 - Rigid Pavement.
- C. Section 02760 - Pavement Joint Sealant.
- D. Section 03300 - Cast-in-Place Concrete.
1.3 REFERENCES
- A. ASTM D 5249 - Backer Material for Use with Cold- and Hot-Applied Joint Sealants in Portland-Cement Concrete and Asphalt Joints.
1.4 SUBMITTALS
- A. Comply with Section 01330 - Submittal Procedures.
- B. Submit manufacturer's product data and installation instructions.
1.5 DELIVERY, STORAGE, AND HANDLING
- A. Delivery: Deliver materials to site in manufacturer's
original, unopened containers and packaging, with labels clearly identifying
product name and manufacturer.
- B. Storage: Store materials in a cool, clean, dry area indoors in accordance with manufacturer's instructions. Keep containers sealed until ready for use.
- C. Handling: Protect materials during handling and installation to prevent damage.
PART 2 PRODUCTS
2.1 MANUFACTURER
- A. W.R. Meadows, Inc., PO Box 338, Hampshire, Illinois 60140-0338. (800) 342-5976. (847) 683-4500. Fax (847) 683-4544. Web Site www.wrmeadows.com.
2.2 MATERIALS
- A. Backer Rod: SEALTIGHT CERA-ROD Nongassing,
Heat-Resistant Backer Rod.
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- 1. Description: Round, flexible, continuous-length, nonabsorbent, nongassing, nonstaining, and nonshrinking. Extruded from a cross-linked polyethylene.
- 2. Compliance: ASTM D 5249, Type 1.
- 3. Compression/Deflection: Approximately 25 percent at 8 psi (55.2 kPa).
- 4. Color: Red.
- 1. Description: Round, flexible, continuous-length, nonabsorbent, nongassing, nonstaining, and nonshrinking. Extruded from a cross-linked polyethylene.
- 5. Diameter: [3/8 inch (10 mm)] [1/2 inch
(13 mm)] [5/8 inch (16 mm)] [7/8 inch (22 mm)] [1 inch (25 mm)]
[1-1/4 inches (32 mm)] [1-1/2 inches (38 mm)] [2 inches (51 mm)]
[As indicated on the drawings].
Specifier Notes: Specify required backer rod diameter based on joint width.
PART 3 EXECUTION
3.1 EXAMINATION
- A. Examine joints and cracks to receive backer rod. Notify Architect if conditions are not acceptable. Do not begin surface preparation or installation until unacceptable conditions have been corrected.
3.2 SURFACE PREPARATION
- A. Prepare joints and cracks in accordance with
manufacturer's instructions.
- B. Remove dirt and foreign matter.
3.3 INSTALLATION
- A. Install backer rod in accordance with manufacturer's
instructions at locations indicated on the drawings.
- B. Insert backer rod into joints and cracks without stretching or puncturing.
C. Hold backer rod in compression.- D. Rod Diameter:
- 1. Joint Widths Up to 3/4 Inch (19 mm): 1/8
inch (3 mm) larger than joint width.
2. Joint Widths 3/4 Inch (19 mm) and Larger: 1/4 inch (6 mm) larger than joint width.
- E. Apply hot-applied joint sealants over backer rod as specified in Section 02760.
3.4 PROTECTION
- A. Protect backer rod from damage until covered with joint sealants.
END OF SECTION