PMID- 33081334
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201103
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 13
IP  - 20
DP  - 2020 Oct 16
TI  - A Study on the Influence of the Chemical Nature of Fillers on Rheological and 
      Fatigue Behavior of Bitumen Emulsion Mastic.
LID - 10.3390/ma13204627 [doi]
LID - 4627
AB  - Cold Bitumen Emulsion (CBE) mixture technologies have been recently developed to 
      lower pavement construction temperatures to reduce environmental costs and 
      control gas emissions. Due to its poor early mechanical strength, active fillers 
      (i.e., cement) have been used to obtain high early stiffness in order to have the 
      potential for timely construction of the next layer. There is, however, a lack of 
      understanding about the impact of active fillers on the viscoelastic behavior and 
      fatigue damage resistance of CBE mastics. This study, therefore, aims to identify 
      the influence of active fillers on the rheological properties and the resulting 
      fatigue behavior of CBE mastic, supported by chemical analysis for the 
      filler-bitumen emulsion. For this aim, bitumen emulsion was mixed separately with 
      seven fillers/blended fillers to prepare the CBE mastics. Various experiments, 
      including continuous pH monitoring tests (chemical reactivity of filler-bitumen 
      emulsion), Strain Sweep (SS) tests, Temperature-Frequency Sweep (TFS) tests, Time 
      Sweep (TS) tests, and Linear Amplitude Sweep (LAS) tests were conducted on the 
      CBE binder and the prepared mastics. Results show that the rheological 
      performance and the fatigue damage resistance depend not only on the filler 
      inclusions but also on filler type and chemistry. On this basis, the rise in 
      complex shear modulus and the decrease in the viscous component is associated 
      with a significant enhancement in fatigue performance for specific fillers.
FAU - Al-Mohammedawi, Ahmed
AU  - Al-Mohammedawi A
AD  - Engineering and Maintenance of Road Infrastructure, Faculty of Civil and 
      Environmental Engineering Kassel, University of Kassel, 34127 Kassel, Germany.
FAU - Mollenhauer, Konrad
AU  - Mollenhauer K
AD  - Engineering and Maintenance of Road Infrastructure, Faculty of Civil and 
      Environmental Engineering Kassel, University of Kassel, 34127 Kassel, Germany.
LA  - eng
GR  - 57299294/Deutscher Akademischer Austauschdienst/
PT  - Journal Article
DEP - 20201016
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7603013
OTO - NOTNLM
OT  - active filler
OT  - bitumen emulsion mastic
OT  - dynamic shear rheometer
OT  - fatigue cracking resistance
COIS- The authors declare no conflict of interest.
EDAT- 2020/10/22 06:00
MHDA- 2020/10/22 06:01
PMCR- 2020/10/16
CRDT- 2020/10/21 01:03
PHST- 2020/09/10 00:00 [received]
PHST- 2020/09/30 00:00 [revised]
PHST- 2020/10/09 00:00 [accepted]
PHST- 2020/10/21 01:03 [entrez]
PHST- 2020/10/22 06:00 [pubmed]
PHST- 2020/10/22 06:01 [medline]
PHST- 2020/10/16 00:00 [pmc-release]
AID - ma13204627 [pii]
AID - materials-13-04627 [pii]
AID - 10.3390/ma13204627 [doi]
PST - epublish
SO  - Materials (Basel). 2020 Oct 16;13(20):4627. doi: 10.3390/ma13204627.