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Bioasphalt

From Wikipedia, the free encyclopedia

Bioasphaltis anasphaltalternative made from non-petroleum basedrenewable resources.

These sources includesugar,molassesandrice,cornandpotatostarches,natural tree and gum resins, natural latex rubber and vegetable oils,lignin,cellulose,palm oilwaste, coconut waste, peanut oil waste, canola oil waste, driedsewerageeffluent and so on.[1]Bitumen can also be made from waste vacuum tower bottoms produced in the process of cleaning used motor oils, which are normally burned or dumped into land fills.[2]

Non-petroleum based bitumen binders can be colored, which can reduce the temperatures of road surfaces and reduce theUrban heat islands.[3]

Petroleum, environmental, and heat concerns

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Because of concerns overPeak oil,pollutionandclimate change,as well theoil price increases since 2003,non-petroleumalternatives have become more popular. This has led to the introduction of biobitumen alternatives that are more environmentally friendly and nontoxic.

For millions of people living in and around cities,heat islandsare of growing concern. This phenomenon describes urban and suburban temperatures that are 1 to 6 °C (34 to 43 °F) hotter than nearby rural areas. Elevated temperatures can impact communities by increasing peak energy demand, air conditioning costs, air pollution levels, and heat-related illness and mortality. There are common-sense measures that communities can take to reduce the negative effects of heat islands, such as replacing conventional black asphalt road surfaces with the new pigmentable bitumen that gives lighter colors.[4][5]

History and implementation

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Asphalt made with vegetable oil based binders was patented by Colas SA in France in 2004.[6][7]

A number of homeowners seeking an environmentally friendly alternative to asphalt for paving have experimented with waste vegetable oil as a binder for driveways and parking areas in single-family applications. The earliest known test occurred in 2002 in Ohio, where the homeowner combined waste vegetable oil with dry aggregate to create a low-cost and less polluting paving material for his 200-foot driveway. After five years, he reports the driveway is performing as well or better than petroleum-based materials.[citation needed]

Shell Oil Companypaved two public roads in Norway in 2007 with vegetable-oil-based asphalt. Results of this study are still premature.[8]

HALIK Asphalts LTDfrom Israel has been experimenting with recycled and secondary road building since 2003. The company is using various wastes such asvegetable fats & oils,waxandthermoplastic elastomersto build and repair roads. The results reported are so far satisfying.

On October 6, 2010, a bicycle path inDes Moines, Iowa,was paved withbio-oilbased asphalt through a partnership betweenIowa State University,the City of Des Moines, andAvello BioenergyInc. Research is being conducted on the asphalt mixture, derived from plants and trees to replace petroleum-based mixes.[9] Bioasphalt is a registered trademark of Avello Bioenergy Inc.

Dr. Elham H. Fini, at North Carolina A&T University, has been spearheading research that has successfully produced bio asphalt from swine manure.

Since November 2014 the DutchWageningen University & Research centreis running a pilot in the Dutch province ofZeelandwith bioasphalt in which the binder of bitumen was substituted bylignin.[10][11]

In 2015, French researchers published their results about the usage of microalgaes as a source of asphalt binding material.[12]

See also

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References

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  1. ^"Asphalt compositions and products comprising tall oil derived materials, and methods for making and using same".
  2. ^[1]ArchivedJuly 20, 2008, at theWayback Machine
  3. ^"Basic Information | Heat Island Effect | U.S. EPA".Epa.gov. 2006-06-28.Retrieved2010-06-07.
  4. ^"Heat Island Effect | U.S. EPA".Epa.gov. Archived fromthe originalon 2015-08-14.Retrieved2010-06-07.
  5. ^"Press Releases - February 2006 - Environmentally Sound Technology Fair Offers Innovative Solutions - United Nations Environment Programme".UNEP. Archived fromthe originalon 2010-11-30.Retrieved2010-06-07.
  6. ^"Colas S.A.: Information and Much More from".Answers.com.Retrieved2010-06-07.
  7. ^COLAS CST - VégécolArchivedOctober 12, 2007, at theWayback Machine
  8. ^[2]ArchivedOctober 6, 2008, at theWayback Machine
  9. ^"Bioasphalt(R) developed at Iowa State to be used, tested on des Moines bike trail • News Service • Iowa State University".
  10. ^"Bioasphalt with lignin in Zeeland".www.wur.nl.28 November 2014. Archived fromthe originalon 26 November 2016.Retrieved26 November2016.
  11. ^EOS Wetenschap (6 October 2015)."Dit is de snelweg van de toekomst (en hij loopt door Nederland)".HP/De Tijd(in Dutch). Sas van Gent, Zeeland, The Netherlands. Archived fromthe originalon 21 August 2016.Retrieved26 November2016.
  12. ^Audo, Mariane; Paraschiv, Maria; Queffélec, Clémence; Louvet, Isabelle; Hémez, Julie; Fayon, Franck; Lépine, Olivier; Legrand, Jack; Tazerout, Mohand (2015-04-06)."Subcritical Hydrothermal Liquefaction of Microalgae Residues as a Green Route to Alternative Road Binders"(PDF).ACS Sustainable Chemistry & Engineering.3(4): 583–590.doi:10.1021/acssuschemeng.5b00088.S2CID101025379.