PMID- 33374736
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210124
IS  - 2079-4991 (Print)
IS  - 2079-4991 (Electronic)
IS  - 2079-4991 (Linking)
VI  - 11
IP  - 1
DP  - 2020 Dec 23
TI  - Comparison of Nanomaterials with Other Unconventional Materials Used as Additives 
      for Soil Improvement in the Context of Sustainable Development: A Review.
LID - 10.3390/nano11010015 [doi]
LID - 15
AB  - Since the concept of sustainable development enjoys popular support in the 21st 
      century, various kinds of unconventional materials were introduced for soil 
      improvement in the past few decades to replace the traditional materials like 
      concrete and lime. This paper compared nanomaterials with other three kinds of 
      representative unconventional materials to demonstrate its superiority in soil 
      treatment. The other three kinds of unconventional materials include microbially 
      induced calcite precipitation (MICP), recycled tire and environmental fiber. 
      Nanomaterial and MICP have a comprehensive effect on soil reinforcement, since 
      they can improve shear strength, adjust permeability, resist liquefaction and 
      purify the environment. Recycled tire and environmental fibers are granular 
      materials that are mostly adopted to reinforce reconstituted soil. The 
      reinforcement mechanisms and effects of these four kinds of unconventional 
      materials are discussed in detail, and their price/performance ratios are 
      calculated to make an evaluation about their market application prospects. It can 
      be seen that nanomaterials have promising prospects. Colloidal silica, bentonite 
      and laponite present a satisfactory effect on liquefaction mitigation for sandy 
      foundation, and carbon nanotube has an aptitude for unconfined compressive 
      strength improvement. Among the investigated nanomaterials, colloidal silica is 
      the closest to scale market application. Despite the advantages of nanomaterials 
      adopted as additives for soil improvement, they are known for unwanted 
      interactions with different biological objects at the cell level. Nevertheless, 
      research on nanomaterials that are adopted for soil improvement are very 
      promising and can intensify the relationship between sustainable development and 
      geotechnical engineering through innovative techniques.
FAU - Liu, Gang
AU  - Liu G
AD  - School of Civil Engineering, Architecture and Environment, Xihua University, 
      Chengdu 610039, Sichuan, China.
AD  - Institute of Geotechnical Engineering, Xihua University, Chengdu 610039, Sichuan, 
      China.
AD  - MOE Key Laboratory of High-speed Railway Engineering, Southwest Jiaotong 
      University, Chengdu 610031, Sichuan, China.
FAU - Zhang, Chong
AU  - Zhang C
AD  - School of Civil Engineering, Architecture and Environment, Xihua University, 
      Chengdu 610039, Sichuan, China.
AD  - Institute of Geotechnical Engineering, Xihua University, Chengdu 610039, Sichuan, 
      China.
FAU - Zhao, Mingzhi
AU  - Zhao M
AD  - School of Civil Engineering, Architecture and Environment, Xihua University, 
      Chengdu 610039, Sichuan, China.
AD  - Institute of Geotechnical Engineering, Xihua University, Chengdu 610039, Sichuan, 
      China.
FAU - Guo, Wenbo
AU  - Guo W
AD  - School of Civil Engineering, Architecture and Environment, Xihua University, 
      Chengdu 610039, Sichuan, China.
AD  - Institute of Geotechnical Engineering, Xihua University, Chengdu 610039, Sichuan, 
      China.
FAU - Luo, Qiang
AU  - Luo Q
AD  - MOE Key Laboratory of High-speed Railway Engineering, Southwest Jiaotong 
      University, Chengdu 610031, Sichuan, China.
LA  - eng
GR  - 51408491/National Natural Science Foundation of China/
GR  - 51878560/National Natural Science Foundation of China/
PT  - Journal Article
PT  - Review
DEP - 20201223
PL  - Switzerland
TA  - Nanomaterials (Basel)
JT  - Nanomaterials (Basel, Switzerland)
JID - 101610216
PMC - PMC7823269
OTO - NOTNLM
OT  - Sustainable development
OT  - nanomaterials
OT  - price/performance ratio
OT  - reinforcement mechanism
OT  - soil improvement
COIS- The authors declare that they have no conflict of interest.
EDAT- 2020/12/31 06:00
MHDA- 2020/12/31 06:01
PMCR- 2020/12/23
CRDT- 2020/12/30 01:02
PHST- 2020/11/18 00:00 [received]
PHST- 2020/12/18 00:00 [revised]
PHST- 2020/12/18 00:00 [accepted]
PHST- 2020/12/30 01:02 [entrez]
PHST- 2020/12/31 06:00 [pubmed]
PHST- 2020/12/31 06:01 [medline]
PHST- 2020/12/23 00:00 [pmc-release]
AID - nano11010015 [pii]
AID - nanomaterials-11-00015 [pii]
AID - 10.3390/nano11010015 [doi]
PST - epublish
SO  - Nanomaterials (Basel). 2020 Dec 23;11(1):15. doi: 10.3390/nano11010015.