From Polymers in Asphalt
Polymer Degradation and Stability
86, No. 2, 2004, p. 275 82
EFFECT OF THE THERMAL DEGRADATION OF SBS COPOLYMERS DURING THE AGEING OF MODIFIED ASPHALTS
Cortizo M S; Larsen D O; Bianchetto H; Alessandrini J L
Buenos Aires, INIFTA; La Plata, Universidad Nacional; CONICET; CIC
The thermooxidative degradation of styrene-butadiene-styrene block copolymers having different structures and molec.wts. in the presence of asphalt was investigated under different ageing conditions using size exclusion chromatography and IR spectroscopy. The physicochemical properties of the polymer modified asphalts before and after ageing were determined and changes in these properties explained on the basis of the structural modifications arising as a result of thermal degradation. 20 refs.
Accession no. 928757
34, No. 11, Nov. 2004, p. 83
ROAD PAVING WITH WASTE PLASTIC
It is briefly reported that a sixteen year old girl from British Columbia has received a gold medal and a 2, 000 US dollars scholarship at the 2002 Canada-wide Science Fair for PolyAggre Road, a proprietary road paving material she developed that uses 6% recycled plastic pellets from plastic bottles, 6% asphalt and 88% aggregate.
Accession no. 926662
55, No. 11, Nov. 2003, p. 13 6
ASPHALT-RUBBER SETS THE BAR FOR MODIFIED BINDERS
Carlson D J
Asphalt-Rubber was first defined in 1988 by ASTM as "a blend of asphalt cement, reclaimed tyre rubber and certain additives in which the rubber component is at least 15% by weight of the total blend and has...
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