POLYESTER OVERLAYS FOR PORTLAND CEMENT CONCRETE SURFACES - AND DISCUSSION

THE USE OF THERMOSETTING POLYESTER RESINS IN PROTECTIVE COATINGS FOR PORTLAND CEMENT CONCRETE /PCC/ SURFACES IS DESCRIBED. SPECIFIC REFERENCE IS MADE TO THE USE OF POLYESTER-AGGREGATE SYSTEMS AS COATINGS ON PCC BRIDGE DECKS. TWO POLYESTER OVERLAY SYSTEMS ARE EXAMINED. ONE USES ORDINARY SEAL COAT APPLICATION METHODS IN WHICH POLYESTER RESIN IS SPRAYED DIRECTLY ONTO A CAREFULLY CLEANED PCC SURFACE. STONE CHIPS ARE ADDED FOR SKID RESISTANCE. THE SECOND SYSTEM USES A POLYESTER-SAND MORTAR APPLIED AS A 1/4- IN. OVERLAY. THIS TYPE OF SYSTEM ALSO ACTS AS A LEVELING COURSE WHICH ALLOWS READJUSTMENT OF IRREGULAR WEARING SURFACES TO A DESIRED GRADE. SELECTIVE GRADATION OF THE AGGREGATE AND PROPER PROPORTIONING OF THE GRADED AGGREGATE WITH POLYESTER RESIN GIVE A DENSE IMPERMEABLE MORTAR OVERLAY. THE VARIATION OF COMPRESSIVE STRENGTH WITH AGGREGATE GRADING IS DEMONSTRATED. THE PROPERTIES OF SELECTED POLYESTER MORTARS ARE EXAMINED IN THE LABORATORY. THE MORTAR IS SHOWN TO REACH 80 PERCENT OF ITS ULTIMATE COMPRESSIVE STRENGTH IN LESS THAN 24 HR. THE COMPLETED MORTAR IS ALSO SHOWN TO BE RESISTANT TO HYDROCARBON SOLVENTS. METHODS USED FOR SURFACE PREPARATION AND FOR APPLYING THE POLYESTER OVERLAYS ARE EXAMINED. SPECIAL CONSTRUCTION EQUIPMENT IS DESCRIBED. BOTH OVERLAY SYSTEMS HAVE BEEN SHOWN TO BE EFFECTIVE IN SEVERAL LARGE-SCALE FIELD TESTS. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/onlinepubs/hrr/1963/14/14-006.pdf
• Supplemental Notes:
  • No 14, pp 44-59, 12 FIG, 6 TAB, 17 REF Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Santucci, L E
• Publication Date: 1963

Media Info

• Monograph Title: Concrete bridge decks and pavement surfaces
• Serial:
  • Highway Research Record
  • Issue Number: 14
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregate gradation; Applications; Coatings; Compression tests; Construction equipment; Crash investigation; Field tests; Hydrocarbons; Laboratory tests; Mortar; Overlays (Pavements); Polyester resins; Portland cement concrete; Proportioning; Resins; Sand; Solvents; Sprays (Materials); Studies; Surfaces; Thermosetting resins
• Uncontrolled Terms: Preparation
• Old TRIS Terms: Compressive strength tests
• Subject Areas: Geotechnology; Highways; Materials; Research; Safety and Human Factors;

Filing Info

• Accession Number: 00215778
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jul 14 1994 12:00AM