Specifications.pdf
PDF 19 KB Posted
- Attached to
- Open Cell Foam Joint System
- Solicitation number
- 300000287818593
- Issued by
- Missouri
About this file
This is a specifications document for an Open Cell Foam Joint System issued by the Missouri Department of Transportation - St. Louis. The system comprises three integrated components supplied by a single manufacturer: cellular polyurethane foam impregnated with 100% hydrophobic polymer and factory-coated with highway-grade, fuel-resistant silicone; field-applied epoxy adhesive primer; and field-applied silicone sealant bands for sealing gaps and locking field splices. The contract period extends from the Date of Award through October 31, 2027, with options to extend for two additional one-year periods. The joint system is designed for bridge structures and must meet specific performance standards including a working range of 50% in tension and 50% in compression, a service temperature range of -40°F to 185°F per ASTM C 711, resistance to bleeding at elevated temperatures, and UV resistance of no changes at 2,000 hours per ASTM G 155.
The specifications include detailed material requirements and testing standards. The epoxy adhesive must be a 100% solids, two-component moisture-sensitive modified epoxy meeting ASTM C 881, while the silicone sealant must be a one-part, cold-applied chemically curing silicone meeting ASTM D 5893. Pricing is structured as a line-item bid format with unit pricing per linear foot for various joint configurations, including different depths of seal (1", 2", 3", and 4") and mean temperature variations. The foam impregnation agent must be free of waxes or asphalts. Multiple product codes and supplied lengths are specified, including 12 LF reels and 6.56 LF stick configurations, with bidders required to provide pricing for each configuration listed in the specifications table.
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| File | Type | Posted |
|---|---|---|
| MODOT SL 0000000088SL_SUPPLIER.pdf |
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Text version
Section 1073 - Joint Material for Structures
1073.6 Open Cell Foam Joint System. All components of the system shall be supplied by one manufacturer.
The joint system shall be comprised of the following components.
(a) Cellular polyurethane foam impregnated with 100% hydrophobic polymer, water based emulsion and factory coated, on the roadway surface, with highway-grade, fuel resistant silicone.
(b) Field-applied epoxy adhesive primer.
(c) Field-applied silicone sealant bands that seal the gap between the edge of the bridge and the silicone topping on the joint. This silicone will also be used for locking field splices in the joint together.
1073.6.1 General Movement Requirements. The seal shall have a working range of 50% in tension and 50% in compression. Changes in plane and direction shall be executed using factory fabricated watertight transition assemblies conforming to the plans and specifications.
1073.6.2 Seal Properties. The seal shall be able to meet the following properties:
Property Requirement Temperature Service Range, ASTM C 711 -40° F to 185° F Bleeding None at 180° F @ 50% compression for 3 hrs.
UV Resistance, ASTM G 155 No Changes at 2000 hrs.
Polymer impregnation agent Free of any waxes or asphalts
1073.6.3 Adhesive Properties. The epoxy adhesive shall be a 100% solids, two component moisture sensitive modified epoxy adhesive which meets ASTM C 881.
1073.6.4 Sealant Properties. The silicone sealant shall be a one part, cold applied chemically curing silicone joint sealant which meets ASTM D 5893.
Pricing:
Supplied Length Product Code Joint at MeanT Depth of Seal Price/LF Univ. 90’s
12 LF Reel ________ ½” 1 ¾” ______ ______ ________ 1” 1 ¾” ______ ______ ________ 1 ¼” 2” ______ ______
6.56 LF sticks ________ 1 ½” 2 ½” ______ ______
________ 2” 2 ½” ______ ______ ________ 2 ½” 2 ¾” ______ ______ ________ 3” 2 ¾” ______ ______ ________ 3 ½” 3 ½” ______ ______ ________ 4” 3 ½” ______ ______
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