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Experimentalrubber chip concrete mixes for shock absorbent bike lane pavements.
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.ORCID iD: 0000-0002-5901-1586
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2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In Sweden the amount of cyclists being injured in traffic has increased in recent years. Over 23,000 peopleper annum visit an acute care hospital after being injured whilst cycling. Most bicycle accidents are single“vehicle” accidents (82 %) and the most common collision is with another cyclist. Due to increased healthcare costs and the fact that more city dwelling people choose to cycle instead of going by car - due both tomonetary, environmental and personal health reasons - one is devoted to find solutions to make cyclingsafer. Besides efforts to increase helmet usage among cyclists and safer bike lane design separate from cartraffic, another way to reduce injuries may be achieved by modifying the bike lanes’ properties. This wouldresult in safer cycling and not only reducing non-cranial injuries, but also limit the severity of head injuries forcyclists not wearing a helmet. Thus, the pavement and bicycle lane material must be an efficient absorbentof impact energy. The work here presents efforts on modifying a concrete pavement by replacing coarseaggregates and sand with rubber chips and rubber crumbs to increase the shock absorbent capacity.Altogether, eighteen different mixtures with varying proportions of rubber, cement and sand were preparedand evaluated regarding elastic modulus and compressive strength. A fly-ash cement, microsilica and latexsolution were used in the concrete mixes. From the results obtained the mix with the best impact absorbingproperties, with a low E-modulus and sufficient compressive strength, was chosen for further evaluation.

Place, publisher, year, edition, pages
2015.
Series
IBRACON, ISSN 2175-8182
Keywords [en]
Rubber chips, rubber crumbs, rubber modified concrete, bike lane
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-39891OAI: oai:DiVA.org:ri-39891DiVA, id: diva2:1349150
Conference
3rd International Conference on Best Practices for Concrete Pavements, 28 - 30 October. 2015. Bonito, Brazil: IBRACON and USP.
Available from: 2019-09-06 Created: 2019-09-06 Last updated: 2019-09-06Bibliographically approved

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Gram, AnnikaWallqvist, Viveca

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