DEVELOP METHODS OF REDUCING COST OF ELECTRIFICATION MAINTENANCE
A METHOD IS DISCUSSED OF PROTECTING CATENARY SUPPORT STRUCTURES THAT IS BELIEVED TO BE SUPERIOR TO A CONVENTIONAL PAINT SYSTEM. THE FIRST STEP IS TO CLEAN THE FOUNDATION AREA AND THE COLUMN UP TO A HEIGHT OF SIX FEET WITH CONVENTIONAL SAND-BLASTING EQUIPMENT TO REMOVE RUST, LOOSE SCALE, AND PAINT. THEN A BITUMINOUS COMPOUND COMPOSED OF A SPECIAL BLEND OF ASPHALTS, PETROLEUM RESINS, PLASTICIZERS, ASBESTOS, MICA, AND SOLVENT IS PUMPED FROM DRUMS, ATOMIZED AND APPLIED TO COLUMNS WITH A HAND-OPERATED SPRAY GUN TO A FILM THICKNESS OF BETWEEN 100-130 MILS. THE COMPOUND AFFORDS PROTECTION AGAINST CORROSION, ABRASION, SUNLIGHT AND WEATHERING. WHILE BEING APPLIED IT FOLLOWS THE CONTOUR OF THE SURFACE EXACTLY, LEAVING NO VOIDS, RIDGES, OR UNPROTECTED AREAS. PRIOR TO DRYING, BLACK CERAMIC GRANULES WERE SPRAYED ON THE MASTIC. THE GRANULES FORM AN INTEGRAL PART OF THE COATING. /AUTHOR/
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Supplemental Notes:
- Vol 69, No 610, PP 251-252
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Authors:
- Mulrenan, C F
- Publication Date: 1967-12
Media Info
Subject/Index Terms
- TRT Terms: Abrasion resistant coatings; Bituminous mixtures; Blast cleaning; Catenaries (Railroads); Ceramic coatings; Corrosion protection; Maintenance practices; Painting; Steel structures; Sunlight; Weathering
- Subject Areas: Highways; Maintenance and Preservation;
Filing Info
- Accession Number: 00218301
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 29 1994 12:00AM