PMID- 30134583
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200930
IS  - 2079-4991 (Print)
IS  - 2079-4991 (Electronic)
IS  - 2079-4991 (Linking)
VI  - 8
IP  - 9
DP  - 2018 Aug 21
TI  - Cement-Based Materials Containing Graphene Oxide and Polyvinyl Alcohol Fiber: 
      Mechanical Properties, Durability, and Microstructure.
LID - 10.3390/nano8090638 [doi]
LID - 638
AB  - The influence of graphene oxide (GO) and polyvinyl alcohol (PVA) fiber on the 
      mechanical performance, durability, and microstructure of cement-based materials 
      was investigated in this study. The results revealed that compared with a control 
      sample, the mechanical strength and durability of cement-based materials were 
      significantly improved by adding PVA fiber and GO. The compressive and flexural 
      strength at 28 d were increased by 30.2% and 39.3%, respectively. The chloride 
      migration coefficient at 28 d was reduced from 7.3 x 10(-12) m(2)/s to 4.3 x 
      10(-12) m(2)/s. Under a sulfate corrosion condition for 135 d, the compressive and 
      flexural strength still showed a 13.9% and 12.3% gain, respectively. Furthermore, 
      from the Mercury Intrusion Porosimetry (MIP) test, with the incorporation of GO, 
      the cumulative porosity decreased from more than 0.13 cm(3)/g to about 0.03 cm(3)/g, 
      and the proportion of large capillary pores reduced from around 80% to 30% and 
      that of medium capillary pores increased from approximately 20% to 50%. Scanning 
      electron microscope (SEM) images showed a significant amount of hydration 
      products adhering to the surface of PVA fiber in the GO and PVA fiber modified 
      sample. The addition of GO coupling with PVA fiber in cement-based materials 
      could promote hydration of cement, refine the microstructure, and significantly 
      improve mechanical strength and durability.
FAU - Jiang, Wenguang
AU  - Jiang W
AD  - State Key Laboratory of Silicate Materials for Architectures, Wuhan University of 
      Technology, Wuhan 430070, China. JWG930329@163.com.
FAU - Li, Xiangguo
AU  - Li X
AD  - State Key Laboratory of Silicate Materials for Architectures, Wuhan University of 
      Technology, Wuhan 430070, China. lixiangguo@whut.edu.cn.
FAU - Lv, Yang
AU  - Lv Y
AD  - State Key Laboratory of Silicate Materials for Architectures, Wuhan University of 
      Technology, Wuhan 430070, China. yang.lv@whut.edu.cn.
FAU - Zhou, Mingkai
AU  - Zhou M
AD  - State Key Laboratory of Silicate Materials for Architectures, Wuhan University of 
      Technology, Wuhan 430070, China. zhoumingkai@163.com.
FAU - Liu, Zhuolin
AU  - Liu Z
AD  - State Key Laboratory of Silicate Materials for Architectures, Wuhan University of 
      Technology, Wuhan 430070, China. lin7336@126.com.
FAU - Ren, Zhaofeng
AU  - Ren Z
AD  - State Key Laboratory of Silicate Materials for Architectures, Wuhan University of 
      Technology, Wuhan 430070, China. RZF15671660187@163.com.
FAU - Yu, Zhuqing
AU  - Yu Z
AD  - College of Materials Science and Engineering, Nanjing Tech University, Nanjing 
      210000, China. zyu@njtech.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20180821
PL  - Switzerland
TA  - Nanomaterials (Basel)
JT  - Nanomaterials (Basel, Switzerland)
JID - 101610216
PMC - PMC6163994
OTO - NOTNLM
OT  - PVA fiber
OT  - cement-based materials
OT  - durability
OT  - graphene oxide
OT  - mechanical strength
OT  - microstructure
COIS- We declare that there is no conflict of interest in this work.
EDAT- 2018/08/24 06:00
MHDA- 2018/08/24 06:01
PMCR- 2018/08/21
CRDT- 2018/08/24 06:00
PHST- 2018/07/18 00:00 [received]
PHST- 2018/08/16 00:00 [revised]
PHST- 2018/08/16 00:00 [accepted]
PHST- 2018/08/24 06:00 [entrez]
PHST- 2018/08/24 06:00 [pubmed]
PHST- 2018/08/24 06:01 [medline]
PHST- 2018/08/21 00:00 [pmc-release]
AID - nano8090638 [pii]
AID - nanomaterials-08-00638 [pii]
AID - 10.3390/nano8090638 [doi]
PST - epublish
SO  - Nanomaterials (Basel). 2018 Aug 21;8(9):638. doi: 10.3390/nano8090638.