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Influence of cement content and environmental humidity on cement-asphalt composites performance
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Transportvetenskap, Väg- och banteknik.
2012 (engelsk)Inngår i: Concrete Repair, Rehabilitation and Retrofitting III - Proceedings of the 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2012, 2012, s. 247-253Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Ideally, a material with low-environmental impact and combining the advantages of both asphalt and concrete could be obtained by combining bitumen emulsions and a cementitious material. These bitumen emulsions harden by a process where the water in the mixture is removed both by evaporation and by cement hydration. In this research, cold asphalt mixtures with different percentages of cement replacement have been prepared and tested with Marshall Stability tests. Furthermore, mixtures with 0% and with 3% of cement replacement were cured under different environmental relative humidity (35, 70 and 90% RH). Additionally, the mass evolution of the specimens cured under different humidity conditions was measured. According to the results of the present study, cement contributes to the hardening of cold asphalt mixtures by creating mortar bridges between the aggregates and by removing water from the mixtures through cement hydration.

sted, utgiver, år, opplag, sider
2012. s. 247-253
Emneord [en]
Bitumen emulsion, Cement content, Cement hydration, Cement replacement, Cementitious materials, Humidity conditions, Marshall stability
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-105429Scopus ID: 2-s2.0-84867359258ISBN: 978-041589952-9 (tryckt)OAI: oai:DiVA.org:kth-105429DiVA, id: diva2:571277
Konferanse
3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2012, 3 September 2012 through 5 September 2012, Cape Town
Merknad

QC 20121122

Tilgjengelig fra: 2012-11-22 Laget: 2012-11-21 Sist oppdatert: 2012-11-22bibliografisk kontrollert

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Totalt: 127 treff
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