REVIEW OF FORMULATION AND TESTING PROCEDURES FOR COAL TAR EPOXY (SSPC PAINT 16-68T)
The Corps of Engineers uses the Steel Structures Painting Council (SSPC) specification 16-68T for coal tar epoxy paint extensively. Although performance of the material is unquestioned, difficulty in obtaining the coal tar pitch used in its manufacture has been experienced during energy shortages; this problem has stimulated efforts to revise the specification. This study critically examined the test methods and requirements set forth in the specification and evaluated several pitches as possible replacements. It is recommended that the sag test be simplified without altering the test requirement; that the nonvolatiles requirement be altered if a proposed change in the packaging ratio is implemented; and that coal tar pitch RT-12 be used as a replacement for the pitch now specified--if requirements can be written to provide a pitch with a minimum of water-extractable material, and if the odor requirement of the present specification is eliminated.
Army Construction Engineering Research LaboratoryP.O. Box 4005
Champaign, IL USA 61820
- BEITELMAN, A
- Publication Date: 1976-9
- Features: Appendices; Tables;
- Pagination: 56 p.
- TRT Terms: Coal tars; Epoxides; Formulations; Pitch (Materials); Specifications; Test procedures
- Old TRIS Terms: Epoxy
- Subject Areas: Geotechnology; Highways; Materials;
- Accession Number: 00142382
- Record Type: Publication
- Report/Paper Numbers: CERL-TR-M-192 Final Rpt.
- Files: TRIS
- Created Date: Dec 15 1976 12:00AM