Bioasphalt: Difference between revisions

'''Bioasphalt''' is an [[Asphalt concrete|asphalt]] alternative made from non-petroleum based [[renewable resource]]s.

These sources include [[sugar]], [[wikt:molasses|molasses]] and [[rice]], [[maize|corn]] and [[potato]] [[starch]]es, natural tree and gum resins, natural latex rubber and vegetable oils, [[lignin]], [[cellulose]], [[palm oil]] waste, coconut waste, peanut oil waste, canola oil waste, dried [[sanitary sewer|sewerage]] effluent and so on.<ref>[http{{Cite web | url=https://gtkppatents.google.com/uploads/public/documents/Knowledgepatent/Eco-road%20Technologies%20Review-a.pdfCA2801866A1 ]{{dead link|datetitle =June 2010Asphalt compositions and products comprising tall oil derived materials, and methods for making and using same}}</ref> 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.<ref>[http://pittsh.com.au/documents/20070727NewsletterMarch2006.pdf ] {{deadwebarchive |url=https://web.archive.org/web/20080720091421/http://pittsh.com.au/documents/20070727NewsletterMarch2006.pdf link|date=JuneJuly 20, 2008 2010}}</ref>

Non-petroleum based bitumen binders can be colored, which can reduce the temperatures of road surfaces and reduce the [[Urban heat island]]s.<ref>{{cite web|url=http://www.epa.gov/heatisland/about/index.htm |title=Basic Information &#124; Heat Island Effect &#124; U.S. EPA |publisher=Epa.gov |date=2006-06-28 |accessdateaccess-date=2010-06-07}}</ref>

Because of concerns over [[Peak oil]], [[pollution]] and [[climate change]], as well the [[oil price increases since 2003]], non-[[petroleum]] alternatives 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, [[Urban heat islands|heat islands]] are of growing concern. This phenomenon describes urban and suburban temperatures that are {{convert|1 |to |6°|C (2 to 10°-change|F)-change}} 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. Fortunately, thereThere 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.<ref>{{cite web |url=http://epa.gov/heatisland/ |title=Heat Island Effect &#124; U.S. EPA |publisher=Epa.gov |access-date= |accessdate=2010-06-07 |archive-date=2015-08-14 |archive-url=https://web.archive.org/web/20150814070412/http://www.epa.gov/heatisland/ |url-status=dead }}</ref><ref>{{cite web |url=http://unep.org/Documents.Multilingual/Default.asp?DocumentID=469&ArticleID=5132&I=en |title=Press Releases - February 2006 - Environmentally Sound Technology Fair Offers Innovative Solutions - United Nations Environment Programme |publisher=UNEP |access-date=2010-06-07 |accessdatearchive-url=https://web.archive.org/web/20101130192421/http://www.unep.org/Documents.Multilingual/Default.asp?DocumentID=469&ArticleID=5132&I=en |archive-date=2010-0611-0730 |url-status=dead }}</ref>

Asphalt made with vegetable oil based binders was patented by Colas SA in France in 2004.<ref>{{cite web|url=http://answers.com/topic/colas-s-a?cat=biz-fin |title=Colas S.A.: Information and Much More from |publisher=Answers.com |access-date= |accessdate=2010-06-07}}</ref><ref>[http://colas-cst.com/_ACTU_TECH/nouveauxproduits.php?fiche=0 COLAS CST - Végécol] {{webarchive |url=https://web.archive.org/web/20071012084340/http://colas-cst.com/_ACTU_TECH/nouveauxproduits.php?fiche=0 |date=October 12, 2007 }}</ref>

[[Shell Oil Company]] paved two public roads in Norway in 2007 with vegetable-oil-based asphalt. Results of this study are still premature.<ref>[http://shell.com/static/bitumen-en/downloads/wrc/bioflux.pdf ] {{deadwebarchive |url=https://web.archive.org/web/20081006110736/http://shell.com/static/bitumen-en/downloads/wrc/bioflux.pdf link|date=JuneOctober 6, 2008 2010}}</ref>

On October 6, 2010, a bicycle path in [[Des Moines, Iowa]], was paved with [[bio-oil]] based asphalt through a partnership between [[Iowa State University]], the City of Des Moines, and [[http://www.avellobioenergy.com/ Avello Bioenergy]] Inc. Research is being conducted on the asphalt mixture, derived from plants and trees to replace petroleum-based mixes.<ref>[{{Cite web | url=http://www.news.iastate.edu/news/2010/oct/Bioasphalt] | title=Bioasphalt(R) developed at Iowa State to be used, tested on des Moines bike trail • News Service • Iowa State University}}</ref>

*[[Asphalt concrete|Asphalt]]