Preformed Foam Bridge Joint1.pdf
PDF 108 KB Posted
- Attached to
- Small Purchase - Bridge Expansion Joint System
- Solicitation number
- 23-494DOT-DISTR-B-36774
- Issued by
- Illinois
About this file
This document outlines the technical specifications for a Preformed Foam Bridge Joint System for a state and local contract opportunity. The system consists of a cellular polyurethane foam core coated with silicone, an epoxy adhesive primer, and a silicone sealant. The joint seal must be capable of +60%/-60% total movement and be resistant to various environmental factors. It must meet specific physical property requirements for tensile strength, UV resistance, density, and temperature range. The adhesive and sealant components must also meet stringent performance criteria. This opportunity is being issued by the State of Illinois for a Small Purchase - Bridge Expansion Joint System contract.
The contract will require the successful bidder to provide the specified Preformed Foam Bridge Joint System product and related materials. Pricing terms, funding sources, and other commercial details are not provided in the technical specifications document. No information is given regarding any set asides, incumbent contractors, or the current competitive environment for this procurement.
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Other files
| File | Type | Posted |
|---|---|---|
| Bid Terms and Conditions~16.docx | DOCX document | |
| bejs-bridge-expansion-joint-system-tech-data-sheet-emseal.pdf | ||
| standard terms and conditions~3.pdf |
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Text version
BRIDGE EXPANSION JOINT SYSTEM
Preformed Pre-compressed, Silicone Coated, Self-Expanding Sealant System. This Sealant system shall be comprised of three components: 1) cellular polyurethane foam impregnated with hydrophobic 100% acrylic, water-based emulsion, factory coated with highway-grade, fuel resistant silicone; 2) field-applied epoxy adhesive primer, 3) field-injected silicone sealant bands.
The preformed, pre-compressed silicone joint seal shall be Sika Emseal BEJS or equivalent, according to the following:
• The joint seal shall be held in place by a non-sag, high modulus silicone adhesive.
• The joint seal shall be compatible with the epoxy and header material.
• The joint seal shall withstand the effects of vertical and lateral movements, skew movements and rotational movement without adhesive or cohesive failure.
• The joint seal shall be designed so that, the material is capable of movement of +60%, -
60% (120% total) of nominal material size. The gland shall not contain any open, unsealed joints along its length it its final condition.
• Changes in plane and direction shall be executed using factory fabricated transition assemblies fabricated to the angle(s) specified on the plans. The transitions shall be watertight at the inside and outside corners through the full movement of the product.
• The depth of the joint shall be recessed 3/4 in. (19 mm) below the riding surface throughout the normal limits of joint movement.
• The joint seal shall be resistant to ultraviolet rays.
• The joint seal shall be resistant to abrasion, oxidation, oils, gasoline, salt, and other materials that may be spilled on or applied to the surface.
• The manufacturer shall certify that the joint composition shall be free of any waxes or wax compounds; asphalts or asphalt compounds.
The joint material shall meet the following physical properties:
Property Requirement Test Method
Thermal Movement +60/-60%
ASTM E1399
Tensile Strength of Silicone Coating (min)
140 psi
ASTM D412
Tensile Strength of Foam Core (min.)
18 psi
ASTM D3574
UV Resistance of Joint System No Changes--2000 Hours ASTM G155-00A
Density of Cellular Polyurethane Foam (Unconfined)
4.0 lb/ cu ft (200kg/cu
m) ASTM D545
Heat Aging Effects (Silicone Coating)
No cracking, chalking
ASTM C792
Joint System Operating temp range (min)
-40o F to 185o F
ASTM C711
The adhesive shall be a two-component, 100% solid, modified epoxy meeting the requirements of ASTM C881, Type I, Grade 3, Class B & C. The adhesive shall also have the following properties:
Property Requirement Test method
Tensile Strength 2,500 psi (24 MPa) min. ASTM D638
Compressive Strength 7000 psi (48 MPa) min. ASTM D695
Bond Strength (Dry Cure) 2000 psi (28MPa) min ASTM C882
Water Absorption 0.1% by weight ASTM D570
The silicone band adhesive shall have the following properties:
Property Requirement Test Method
Movement Capability +50/-50% ASTM C719
Elongation at Break >600% ASTM D5893
Slump ≤=0.3" ASTM D2202
Hardness (Shore A) max. 20 ASTM C661
Tack free time (max) 60 minutes ASTM C679
Heat Aging Effects No cracking, chalking ASTM C792
Resilience ≥ 75% ASTM D5329
Bond 0% Adhesive or Cohesive Failure after 5 cycles @100%extension ASTM D5329
Tensile Strength of Silicone (min)
175 psi
ASTM D412
BRIDGE EXPANSION JOINT SYSTEM
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