PMID- 33573019
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210215
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 13
IP  - 3
DP  - 2021 Jan 29
TI  - Effect of Nanoclay Particles on the Performance of High-Density 
      Polyethylene-Modified Asphalt Concrete Mixture.
LID - 10.3390/polym13030434 [doi]
LID - 434
AB  - Utilizing polymers for asphalt concrete (AC) mixture modification has many 
      drawbacks that hinder its wide implementations for roadway construction. 
      Recently, research on employing complementary materials, such as nanomaterials, 
      to balance negative impacts of polymers while enhancing the AC mixture's 
      performance has received great attention. This study aimed to investigate the 
      effect of incorporating nanoclay (NC) particles on the performance of a 
      high-density polyethylene (HDPE)-modified AC mixture. A 60/70 asphalt binder was 
      first modified with HDPE, and then NC particles were gradually added at a 
      concentration of 1-4% by weight of the asphalt binder. The binders' physical 
      characteristics, storage stability, and chemical change were scrutinized. AC 
      mixture performance, including pseudo-stiffness, moisture damage resistance, 
      stripping susceptibility, and rutting tendency, was investigated. A statistical 
      analysis on the experimental results was conducted using Kruskal-Wallis and Dunn 
      tests. Test results showed that employing NC/HDPE significantly increased 
      penetration index and thereby enhanced binder temperature sensitivity. Moreover, 
      it prevented oxidation action and separation and, therefore, enhanced binder 
      storage stability. Furthermore, incorporating NC amplified pseudo-stiffness and 
      significantly improved resistance against moisture damage and stripping of 
      HDPE-modified mixtures. Moreover, it improved both elastic (recoverable) and 
      plastic (unrecoverable) deformations of mixtures. The most satisfactory results 
      were attained when incorporating 3% of NC.
FAU - Moussa, Ghada S
AU  - Moussa GS
AUID- ORCID: 0000-0002-0842-5674
AD  - Civil Engineering Department, Assiut University, Assiut 71515, Egypt.
FAU - Abdel-Raheem, Ashraf
AU  - Abdel-Raheem A
AUID- ORCID: 0000-0002-3297-880X
AD  - Civil Engineering Department, Sohag University, Sohag 82524, Egypt.
FAU - Abdel-Wahed, Talaat
AU  - Abdel-Wahed T
AD  - Civil Engineering Department, Sohag University, Sohag 82524, Egypt.
LA  - eng
PT  - Journal Article
DEP - 20210129
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC7866393
OTO - NOTNLM
OT  - asphalt binder modification
OT  - high-density polyethylene
OT  - modified AC mixture
OT  - moisture damage
OT  - nanoclay
OT  - polymer nanocomposite
OT  - rutting
OT  - stiffness
OT  - storage stability
OT  - stripping
COIS- The authors declare no conflict of interest.
EDAT- 2021/02/13 06:00
MHDA- 2021/02/13 06:01
PMCR- 2021/01/29
CRDT- 2021/02/12 01:03
PHST- 2021/01/07 00:00 [received]
PHST- 2021/01/23 00:00 [revised]
PHST- 2021/01/25 00:00 [accepted]
PHST- 2021/02/12 01:03 [entrez]
PHST- 2021/02/13 06:00 [pubmed]
PHST- 2021/02/13 06:01 [medline]
PHST- 2021/01/29 00:00 [pmc-release]
AID - polym13030434 [pii]
AID - polymers-13-00434 [pii]
AID - 10.3390/polym13030434 [doi]
PST - epublish
SO  - Polymers (Basel). 2021 Jan 29;13(3):434. doi: 10.3390/polym13030434.