A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Characterisation of crumb rubber modifier using solid-state nuclear magnetic resonance spectroscopy
Crumb rubber (CR) can be used for binder modification or aggregate replacement in asphalt mixtures for road construction, when it is usually referred to as CR modifier (CRM). CRM elastic properties depend on the quality of parent material and storage conditions of final material. They deteriorate in time due to degradation processes and among other things they can influence CRM swelling capacity during asphalt rubber preparation. The presented paper demonstrates the sensitivity of basic nuclear magnetic resonance (NMR) parameters (proton spin-lattice relaxation time T1, proton spin–spin relaxation time T2 and the line broadening in 13C NMR and 1H NMR spectra) for detecting changes in CRM degradation. These NMR parameters are proposed to be used to assess CRM degradation before application in asphalt mixtures. In laboratory conditions, CRMs with different degrees of degradation were prepared by thermal ageing at 85°C for 0–36 days.
Characterisation of crumb rubber modifier using solid-state nuclear magnetic resonance spectroscopy
Crumb rubber (CR) can be used for binder modification or aggregate replacement in asphalt mixtures for road construction, when it is usually referred to as CR modifier (CRM). CRM elastic properties depend on the quality of parent material and storage conditions of final material. They deteriorate in time due to degradation processes and among other things they can influence CRM swelling capacity during asphalt rubber preparation. The presented paper demonstrates the sensitivity of basic nuclear magnetic resonance (NMR) parameters (proton spin-lattice relaxation time T1, proton spin–spin relaxation time T2 and the line broadening in 13C NMR and 1H NMR spectra) for detecting changes in CRM degradation. These NMR parameters are proposed to be used to assess CRM degradation before application in asphalt mixtures. In laboratory conditions, CRMs with different degrees of degradation were prepared by thermal ageing at 85°C for 0–36 days.
Characterisation of crumb rubber modifier using solid-state nuclear magnetic resonance spectroscopy
Kovaľaková, Mária (author) / Fričová, Oľga (author) / Hronský, Viktor (author) / Olčák, Dušan (author) / Mandula, Ján (author) / Salaiová, Brigita (author)
Road Materials and Pavement Design ; 14 ; 946-958
2013-12-01
13 pages
Article (Journal)
Electronic Resource
English
Characterisation of crumb rubber modifier using solid-state nuclear magnetic resonance spectroscopy
| British Library Online Contents | 2013
Effect of Crumb Rubber Modifier Dissolution on Storage Stability of Crumb Rubber-Modified Asphalt
| British Library Online Contents | 2013
Evaluation of the Tyrsolv Crumb Rubber Asphalt Modifier
| NTIS | 2005
Mechanism of Interaction of Asphalt Cement with Crumb Rubber Modifier
| British Library Conference Proceedings | 1999
Mechanism of Interaction of Asphalt Cement with Crumb Rubber Modifier
| British Library Online Contents | 1999