his paper address the in situ performance over time of different bitumen emulsion stabilized mixtures blended with different types of fillers (cement, lime and mineral filler), monitored during the first year from construction. Results are part of a more extensive research program aimed to investigate the effects of using lime as active filler in cold recycled mixtures, both with bitumen emulsion and foam bitumen. A specific test track has been designed on a construction road near Florence in order to evaluate the evolution of mixture performance over time. Shortterm bearing capacity has been evaluated by means of LWD (Lightweight tests)after 4 h from compaction while FWD tests have been performed after 24 h,14 days, 28 days and 9 months to monitor the mid-term performances. Up untilmid-2014 tests road was not yet opened to traffic so the mixtures experienced onlyconstruction traffic loads. Results obtained positively support the use of lime as active filler in the bitumen emulsion stabilized material and underline the effect of different blends of fillers in the material behaviour. FWD tests are scheduled to be repeated every 6 months in order to monitor the stiffness evolution of the mixtures and evaluate the nature of traffic damage. © RILEM 2016.

Active filler’s effect on in situ performances of bitumen emulsion recycled mixtures / BETTI, GIACOMO; Airey; Jenkins, G.; MARRADI, ALESSANDRO; Tebaldi, G.. - STAMPA. - 11:(2016), pp. 799-810. [10.1007/978-94-017-7342-3_64]

Active filler’s effect on in situ performances of bitumen emulsion recycled mixtures

BETTI, GIACOMO;MARRADI, ALESSANDRO;
2016

Abstract

his paper address the in situ performance over time of different bitumen emulsion stabilized mixtures blended with different types of fillers (cement, lime and mineral filler), monitored during the first year from construction. Results are part of a more extensive research program aimed to investigate the effects of using lime as active filler in cold recycled mixtures, both with bitumen emulsion and foam bitumen. A specific test track has been designed on a construction road near Florence in order to evaluate the evolution of mixture performance over time. Shortterm bearing capacity has been evaluated by means of LWD (Lightweight tests)after 4 h from compaction while FWD tests have been performed after 24 h,14 days, 28 days and 9 months to monitor the mid-term performances. Up untilmid-2014 tests road was not yet opened to traffic so the mixtures experienced onlyconstruction traffic loads. Results obtained positively support the use of lime as active filler in the bitumen emulsion stabilized material and underline the effect of different blends of fillers in the material behaviour. FWD tests are scheduled to be repeated every 6 months in order to monitor the stiffness evolution of the mixtures and evaluate the nature of traffic damage. © RILEM 2016.
2016
RILEM Bookseries - 8th RILEM International Symposium on testing and characterization of sustainable and innovative bituminous materials
799
810
BETTI, GIACOMO; Airey; Jenkins, G.; MARRADI, ALESSANDRO; Tebaldi, G.
File in questo prodotto:
File Dimensione Formato  
Rilem 2015_Betti_Airey_Jenkins_Marradi_Tebaldi_4_reviewed from orginal submission.pdf

Accesso chiuso

Licenza: Tutti i diritti riservati
Dimensione 436.31 kB
Formato Adobe PDF
436.31 kB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1348472
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 6
social impact