PMID- 33670127
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210310
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 4
DP  - 2021 Feb 11
TI  - Effect of PCE on Properties of MMA-Based Repair Material for Concrete.
LID - 10.3390/ma14040859 [doi]
LID - 859
AB  - Methyl methacrylate (MMA)-based repair material for concrete has the 
      characteristics of low viscosity, excellent mechanical properties, and good 
      durability. However, its application is limited due to its large shrinkage. 
      Existing studies have shown that adding perchloroethylene can reduce the 
      shrinkage. On this basis, other properties of modified MMA-based repair materials 
      were tested and analyzed in the present study. The results revealed that the 
      addition of perchloroethylene (PCE) can hinder the polymerization reaction of the 
      system. When CaCO(3) with a mass fraction of 30% was added, the viscosity of the 
      material was within the range of 450-500 mPa.s, and the shrinkage decreased to 
      approximately 10%. The bending strength of MMA, and MMA modified by PCE, repair 
      materials at 28 days could reach up to 28.38 MPa and 29.15 MPa, respectively. 
      After the addition of HS-770 light stabilizer with a mass fraction of 0.4%, the 
      retention ratios of the bending strength of materials with ratios of P0 and P3 
      could reach 91.11% and 89.94%, respectively, after 1440 h of ultraviolet 
      radiation. The retention ratio of the bending strength of the material could 
      reach more than 95% after immersion in different ionic solutions for 90 days.
FAU - Han, Jian
AU  - Han J
AUID- ORCID: 0000-0002-3427-518X
AD  - College of Materials Science and Engineering, Nanjing Tech University, Nanjing 
      211816, China.
FAU - Xu, Lingling
AU  - Xu L
AD  - College of Materials Science and Engineering, Nanjing Tech University, Nanjing 
      211816, China.
FAU - Feng, Tao
AU  - Feng T
AD  - College of Materials Science and Engineering, Nanjing Tech University, Nanjing 
      211816, China.
FAU - Shi, Xin
AU  - Shi X
AD  - College of Materials Science and Engineering, Nanjing Tech University, Nanjing 
      211816, China.
FAU - Zhang, Pan
AU  - Zhang P
AD  - College of Materials Science and Engineering, Nanjing Tech University, Nanjing 
      211816, China.
LA  - eng
GR  - No. 2018YFD1101005/National Key Research & Development Program of China/
PT  - Journal Article
DEP - 20210211
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7916835
OTO - NOTNLM
OT  - durability
OT  - mechanical properties
OT  - methyl methacrylate
OT  - perchloroethylene
OT  - repair material
COIS- The authors declare no conflict of interest.
EDAT- 2021/03/07 06:00
MHDA- 2021/03/07 06:01
PMCR- 2021/02/11
CRDT- 2021/03/06 01:06
PHST- 2021/01/14 00:00 [received]
PHST- 2021/02/03 00:00 [revised]
PHST- 2021/02/05 00:00 [accepted]
PHST- 2021/03/06 01:06 [entrez]
PHST- 2021/03/07 06:00 [pubmed]
PHST- 2021/03/07 06:01 [medline]
PHST- 2021/02/11 00:00 [pmc-release]
AID - ma14040859 [pii]
AID - materials-14-00859 [pii]
AID - 10.3390/ma14040859 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Feb 11;14(4):859. doi: 10.3390/ma14040859.