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Kalltillverkad asfaltbeläggning
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
Trafikverket.
2015 (Swedish)Report (Other academic)Alternative title
Cold asphalt mixture pavements (English)
Abstract [sv]

En kunskapsöversikt över kalltillverkade asfaltbeläggningar både i Sverige och andra länder presenteras i syfte att vidareutveckla kalltekniken som en miljöanpassad asfaltbeläggning. Kall asfaltteknik har periodvis använts i Sverige under många år, dock endast på lågtrafikerade vägar, både i slit- och bärlagermassor. Under senare år har emulsioner baserade på hårdare bitumen tillverkats för tillverkning av asfaltbeläggningar med högre prestanda. I det här arbetet undersöks kalltillverkade asfaltmassor baserade på hårdare bitumen i bärlagren, på mer högtrafikerade vägar där av tradition varmblandad asfalt används. Uppbyggnaden av flera provsträckor och initial tillståndsutvärdering av provsträckor redovisas. Det konstateras från den här begränsade studien att beläggningar med kallteknik är ett effektivt sätt att minska miljöpåverkan genom lägre koldioxidutsläpp och energiåtgång vid tillverkning och utläggning av kallmassan, dock finns det behov av utvecklingsinsatser för en systematisk användning av kalltillverkad asfalt med bra funktionsegenskaper på högtrafikerade vägar.

Abstract [en]

An overview of current knowledge concerning cold asphalt pavements in Sweden and other countries is presented to form a basis for further development of the cold mixing technique as an environmentally adapted asphalt pavement. The cold mixing technique has been used periodically in Sweden for a number of years, but only on roads with little traffic, in both wearing and road base courses. In recent years, emulsions based on harder bitumen have been used to manufacture asphalt pavements with higher performance. This study investigates cold mixed asphalt concrete based on harder bitumen in the road base layer on roads with heavy traffic where hot mixed asphalt has traditionally been used. The construction of several test sections and initial condition evaluations of the test sections are presented. It was found in this limited study that cold mixed pavements are an effective way to reduce environmental impact through lower carbon dioxide emissions and energy consumption during the manufacture and laying of the cold compound. Development is however needed in order to achieve systematic use of cold mixed asphalt with good function characteristics on roads with heavy traffic.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2015. , 42 p.
Series
VTI rapport, ISSN 0347-6030 ; 865
Keyword [en]
Surfacing, Roadbase, Cold coated material, Experimental road, Condition survey, Impact study (environment), Carbon dioxide, Energy consumption, Manufacture, Laying, Mixing plant
National Category
Infrastructure Engineering
Research subject
50 Road: Materials, 51 Road: Bituminous materials and binders; 30 Road: Highway design, 33 Road: Surfacing
Identifiers
URN: urn:nbn:se:vti:diva-7985OAI: oai:DiVA.org:vti-7985DiVA: diva2:848620
Available from: 2015-08-25 Created: 2015-08-25 Last updated: 2016-02-04Bibliographically approved

Open Access in DiVA

fulltext(2727 kB)126 downloads
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
  • html
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