- 808 - SECTION 1018 -- EPOXY COMPOUNDS AND ADHESIVES
1018.01 Description
1.This Specification provides requirements for two-component, epoxy-resin bonding systems for use in non-load bearing applications and resin adhesives for application to Portland cement concrete.
1018.02 Material Characteristics
1.Epoxy-resin bonding systems sha ll conform to the requirements of ASTM C 881. Approved systems are show n on the Department’s Approved Products List.
2.The classification of Epoxy-Resin Bonding Systems is as follows: a. Type I - For use in non-load bearing applications for bonding hardened concrete and other material to hardened concrete. Type II For use in non-load bearing applications for bonding freshly mixed concrete to hardened concrete. Type III For use in bondi ng skid resistant materials to hardened concrete, and as a binder in epoxy mortars or epoxy concretes.
b.Grade 1 Low viscosity. Grade 2 Medium viscosity. Grade 3 Non-sagging consistency.
c.Class A For use below 40°F (4 C); the lowest allowable temperature to be defined by the manufacturer of the product. Class B For use between 40°F and 60°F (4 C and 15 C). Class C For use above 60°F (15 C); the highest allowable temperature to be defined by the manufacturer of the product. Class D For use between 40°F and 65°F (4 C and 18 C). Class E For use between 60°F and 80°F (15 C and 26C). Class F For use between 75°F and 90°F (24 C and 32C).
1018.03 Procedures
1.The compounds shall be of the type and grade specified in the contract or as directed by the Engineer.
2.The class of the compounds shall be selected for use according to climatic conditions at t he time of application.
3.All bonding surfaces shall be clea n and free of all oil, dirt, grease, or any other materials which would prevent bonding.
4.Mixing and application shall be in strict accordance with the manufacturer's instructions. Epoxy Compounds and Adhesives 1018.04 - 809 - 1018.04 -- Acceptance Requirements
1.Epoxy-resin bonding systems and resin adhesives approved for use are shown on the Department ’s Approved Products List.
2.Epoxy compounds that are not on the Department’s Approved Products List may be accepted based on a manufacturer's certificate of compliance. - 810 - SECTION 1019 -- SEALING COMPOUNDS
1019.01 Description
1.The sealing compounds covered are elastomeric single-component compounds.
1019.02 Material Characteristics
1.Type I (self-leveling) is a compound which has sufficient flow to give a smooth, level surface when applied in a horizontal joint at temperatures between 40°F and 122°F (4 C and 50 C).
2.Type II (non-sag) is a compound which allows application in vertical joints without sagging at temperatures between 40°F and 122°F (4 C and 50C).
3.The elastomeric single-component compound shall conform to the requirements of Federal Specific ation TT-S-230C "Sealing Compound, Elastomeric Type, Single Component".
4.Joint sealing material shall conform to the requirements in Table 1019.01, and documents shall be submitted that confirm the properties in Table 1019.01. Table 1019.01 Joint Sealing Compound Requirement As Supplied: Specific Gravity 1.010-1.515 ASTM D 792 Work Time, minutes 10 Tack-Free Time, at 77 F (25C), days 20-360 Cure Time, at 77 F (25C), days 14 Max. Full Adhesion, days 21 Max. As Cured - at 73.4+ 3.6 F (23+2C) and 50+5 RH:: Elongation, Percent Durometer Hardness Non-sag, Shore A Self-leveling, Shore 00 Joint Movement Capability, Percent Tensile Stress, psi (kPa) (at 150% elongation) 800% Min. 10-25 40 Min. +100/-50 Min. 45 Max. (310 Max.) ASTM D 412 ASTM D 2240 ASTM D 2240 ASTM C 719 ASTM D 412
5.Sampling and testing of sealing compounds shall be in accordance with Federal Specification TT-S-230C for single-component sealing compounds.
1019.03 Procedures
1.Single-Component Sealing Compounds include polysulfides and polyurethanes.
2.The single-component sealing compounds (Type I or Type II) may also be used to seal joints in all types of structures where some movement is expected and where a tight seal against dust, dirt, wind, and water is required.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 842–843 of 1,048.