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It is a polymeric dispersant and cross-linking rubber
polymer. It changes the asphalt binder from thermoplastic (soft)
material to a thermoset (hard) material.
It is a mixture of linear and macrocyclic polymers that
exhibit special structural features when added to rubberized asphalt
concrete:
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Low initial viscosity during initial mixing operation
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Increased viscosity after polymerization to prevent
drain down
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Chemical bonding of the GTR to the asphalt
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Chemical bonding of the final rubberized asphalt to the
aggregate to reduce stripping.
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Conversion of the thermoplastic asphalt to a thermoset
polymer, which reduces cracking and rutting.
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Vestenamer®
solves mixing and paving problems:
GTR alone as a modifier functions as a
non-reactive additive to asphalt. When heated, the GTR/asphalt mix exhibits
high tackiness, which causes processing and application problems. When
terminal blended in tanks, the GTR tends to seperate.
EVALUATION OF VESTENAMER REACTIVE
MODIFIER
IN CRUMB RUBBER ASPHALT
PERFORMANCE EVALUATION OF
VESTENAMER (TOR) USING DRY AND WET MIXING PROCESSES IN HOT MIX ASPHALT -
(see summary report below)
Summary Report
VESTENAMER
BROCHURE
MTE RESEARCH
REPORT--CONFIDENTIAL
RESULTS OF TESTING CRUMB RUBBER PLUS VESTENAMER MIXES
COMPARED TO PG 64-22 CONTROL MIX FOR APAC TRIAL
MTE RESEARCH REPORT--CONFIDENTIAL
RESULTS OF TESTING CRUMB RUBBER MIXES COMPARED
TO PG 64-22 CONTROL MIX
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