00377906

Component

https://onlinepubs.trb.or...trcircular/262/262-007.pdf

Stripping of asphalt from the aggregate, in the presence of water, has been observed by many people. This may be caused by incompatability of certain asphalts with different aggregates in the presence of moisture. Most asphalt technicians recognize that the presence of asphaltic acids in the asphalt gives better adhesion to non-acid or limestone type aggregates, however in contrast this may cause stripping if used with siliceous aggregates. Numerous studies of these conditions have been made and many anti-stripping additives have been developed. However, the writers' observations indicate that the long range benefits of these additives are still to be proved. With the advent of the elevated grades on most modern highways, it is seldom that we find an asphalt pavement submerged in water for long periods of time. This, I believe, has pretty much solved the stripping problem in Michigan and, more than likely, in most other states. (Author)

This paper appeared Transportation Research Circular No. 262, Second Look at Moisture Restrictions in Hot-Mix Plant Operations and Construction. 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.

p. 20-23

1983-8

Transportation Research Circular

Digital/other

Acids; Anthracite; Bituminous mixtures; Bituminous pavements; Limestone aggregates; Moisture content; Silicates; Stripping (Pavements)

Construction; Highways; Maintenance and Preservation; Materials; Vehicles and Equipment; I52: Construction of Pavements and Surfacings

TRIS, TRB

Dec 30 1983 12:00AM

• ASPHALT PAVING MIXTURES--DRUM DRYER (DISCUSSION)
• HAULING, SPREADING, AND ROLLING--CONVENTIONAL MIX SYSTEM (DISCUSSION)
• INFLUENCE OF MOISTURE AND HOW MUCH YOU HAVE TO CONTROL IN A CONVENTIONAL PLANT (DISCUSSION)
• LABORATORY MEASUREMENT OF THE EFFECT OF MOISTURE ON WORKABILITY AND PERFORMANCE OF ASPHALT TREATED MIXES (DISCUSSION)
• MOSITURE MONITORING (DISCUSSION)
• SECOND LOOK AT MOISTURE RESTRICTIONS IN HOT-MIX PLANT OPERATIONS AND CONSTRUCTION (DISCUSSION AND CLOSURE)
• SYNOPSIS OF PAUL SERAFIN'S PAPER EFFECT OF MOISTURE IN BITUMINOUS MIXTURES AS EXPERIENCED IN FIELD PAVEMENT OPERATIONS IN MICHIGAN (DISCUSSION)