From Polymers in Asphalt

Item 1
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.

ARGENTINA

Accession no. 928757

Item 2
Reuse/Recycle
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.

Ingenia Polymers

CANADA

Accession no. 926662

Item 3
Rubber India
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...

Copyright Rapra Technology Limited 2004 under license agreement with Books24x7

Products & Services
Road Construction and Paving Services
Road construction and paving services specialize in the building of roads, highways, interchanges, and associated utilities.
Paving Machines
Paving machines are used to pave roadways, walkways, or parking areas.
Plastic and Rubber Balls
Plastic and rubber balls are rolling, spherical elements that have low friction values and require little or no lubrication. They are lighter than metal balls and resistant corrosion and abrasion. Some plastic balls resist high temperatures, but others do not. Rubber balls are characterized by a high degree of flexibility and elasticity.
Thermoplastics and Thermoplastic Resins
Thermoplastics and thermoplastic materials soften when heated and harden when cooled. They can withstand many heating and cooling cycles and are often suitable for recycling.
Anaerobic Adhesives and Anaerobic Sealants
Anaerobic adhesives and anaerobic sealants cure in the absence of air or oxygen.

Topics of Interest

AIA Asphalt Industry Alliance ASTM American Society for Testing and Materials ATS Asphalt thin surfacing BBA British Board of Agr ment BSI British Standards Institute CPD Construction...

Polymer modified asphalt is increasingly used in road surfacing. Unmodified asphalt is sensitive to extremes in temperature, it becomes brittle and cracks in cold conditions and softens at higher...

Item 10 International Polymer Science and Technology 32, No.7, 2005, p. T/25-7 INVESTIGATION OF THE FORMATION OF A LAYER OF FLUORINE-CONTAINING INGREDIENTS ON THE SURFACE OF A VULCANISATE Dedov A V;...

5.1 Overview The various proprietary polymer-modified binders used in the UK asphalt industry are based mainly on thermoplastic elastomers or thermoplastic plastomers (Figures 22 and 23), although...

Item 6 Food Additives and Contaminants 22, No.10, Oct.2005, p.968-74 NEW PHENYLENEDIAMINE ANTIOZONANTS FOR COMMODITIES BASED ON NATURAL AND SYNTHETIC RUBBER Kruger R H; Boissiere C; Klein-Hartwig K;...

Product Announcements
Clean Harbors Environmental Services, Inc.
Energy Control Systems
Energy Control Systems