DURABILITY OF TRAFFIC PAINT UNDER LABORATORY AND SUMMER USE
Work is reported which seeks to modify the vehicle component of traffic paint (vinyl-toluene-modified alkyd resin) by finding a chemical which could speed the curing rate of the paint film at any desired temperature. The mechanism of degradation on the highway was studied by examination of the surface and interface morphology of the paint film with light microscopy and scanning electron microscopy. The relative frequency of each type of failure (failure is of two types: (1) gradual wear or the thinning of the film; (2) complete detachment of entire sections of the film from its substrate usually in small pieces) is determined by the relative strengths of cohesion in the paint film and the adhesion between the paint film samples taken directly from the highway surface. Surface and interface morphology study reveals the mechanism of paint failure and provides information useful for the improvement of paints. Details are given of the kinetic study of the drying rate, the rate of autoxidation of the unsaturation in the alkyd resin. Recommendation for further studies are presented. The study is described of the mechanism of traffic paint failure by light microscopy and scanning electron microscopy. The study of paint wear and weatherings under heavy traffic and non-traffic conditions has provided understanding of how paints fail under summer conditions. A study of the fundamental chemical and physical changes occuring in films of unpigmented paint vehicle upon exposure to air as a function of various drying catalyst kinds and concetrations, revealed no conclusive results. A study of laboratory wear of paint indicates rapid winter wear.
- Record URL:
-
-
Corporate Authors:
University of Connecticut, Storrs
School of Engineering
Storrs, CT United States 06268 -
Authors:
- Shih, L B
- FITCH, R
- Stephens, J S
- Publication Date: 1974-3
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: 59 p.
Subject/Index Terms
- TRT Terms: Alkyd resins; Chemicals; Cohesion; Concrete curing; Durability; Electron microscopes; Kinetics; Laboratory studies; Microscopy; Morphology; Oxidation; Pavements; Polyvinyl chloride; Texture; Toluene; Traffic paint; Weather
- Uncontrolled Terms: Degradation
- Old TRIS Terms: Highway pavement
- Subject Areas: Geotechnology; Highways; Materials; Pavements;
Filing Info
- Accession Number: 00260100
- Record Type: Publication
- Report/Paper Numbers: JHR-74-76
- Files: TRIS
- Created Date: Oct 5 1974 12:00AM