00625621

Component

http://onlinepubs.trb.org...trr/1992/1335/1335-001.pdf

https://scholar.google.co...hang&publication_year=1992

Research was conducted to evaluate generic types of sealer and coating systems for use on nonwearing concrete surfaces in Indiana. Although significant variations exist among six generic classes of coating systems subject to accelerated weathering, water absorption and vapor transmission, and rapid chloride ion permeability tests, certain generic chemical formulations of coating systems appear to exhibit comparatively better performance than others. The epoxies were comparatively better barriers to chloride and water absorption but deteriorated and discolored slightly in the accelerated weathering test. The straight penetrants (straight silanes, silicone, and siloxane) were relatively good in terms of their ability to resist water and chloride absorption and showed little sign of deterioration in the weathering test. The materials that were combinations of the above penetrants did not perform as well as the straight penetrants. Masonry coatings were ineffective chloride barriers, but they did have aesthetic qualities. The urethane and methyl methacrylate did not perform consistently across all tests.

This paper appears in Transportation Research Record No. 1335, Concrete Technology. 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

01404958

English

p. 1-9

1992

Transportation Research Record

0309051738

References (6) ; Tables (6)

Absorption; Accelerated weathering; Chlorides; Coatings; Concrete; Epoxides; Methyl methacrylate; Performance evaluations; Permeability; Sealing compounds; Silane; Silicones; Urethane

Water absorption

Highways; Materials; I32: Concrete

TRIS, TRB, ATRI

Dec 29 1993 12:00AM

• ANALYTICAL EXPRESSIONS FOR UNIAXIAL TENSILE STRENGTH OF CONCRETE IN TERMS OF UNIAXIAL COMPRESSIVE STRENGTH (ABRIDGMENT)
• ASPECTS OF CONCRETE STRENGTH AND DURABILITY
• CONSTITUTIVE RELATIONS AND FAILURE MODEL FOR PLAIN CONCRETE AND STEEL-FIBER-REINFORCED CONCRETE (ABRIDGMENT)
• CONSTRUCTION OF A THIN-BONDED PORTLAND CEMENT CONCRETE OVERLAY USING ACCELERATED PAVING TECHNIQUES
• DESIGN AND CONSTRUCTION OF BONDED FIBER CONCRETE OVERLAY OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENT
• EFFECTS OF AGGREGATE, WATER/CEMENT RATIO, AND CURING ON THE COEFFICIENT OF LINEAR THERMAL EXPANSION OF CONCRETE
• EPOXY INJECTION OF BRIDGE DECK DELAMINATION
• HISTORY OF THE RAPID CHLORIDE PERMEABILITY TEST
• NONDESTRUCTIVE TESTING OF CONCRETE BLOCK FOUNDATIONS FOR TELECOMMUNICATION TOWERS (ABRIDGMENT)
• TWENTY-YEAR PERFORMANCE OF LATEX-MODIFIED CONCRETE OVERLAYS