Nano TiO2-engineered anti-corrosion concrete for sewage system

Zhen Li; Siqi Ding; Lijuan Kong; Xinyue Wang; Ashraf Ashour; Baoguo Han; Jinping Ou

doi:10.1016/j.jclepro.2022.130508

Nano TiO₂-engineered anti-corrosion concrete for sewage system

Zhen Li, Siqi Ding, Lijuan Kong, Xinyue Wang, Ashraf Ashour, Baoguo Han, Jinping Ou

Research output: Journal article publication › Journal article › Academic research › peer-review

22 Citations (Scopus)

Abstract

In this study, anti-corrosion concrete for sewage system was developed with nano TiO₂ (NT) and reactive powder concrete (RPC). The corrosion resistances of NT modified RPC (NTMRPC) in high concentration enhanced sewage were investigated from the perspective of biological, physical and chemical corrosion resistances, respectively. In addition, mechanical properties of NTMRPC after sewage corrosion were also studied. Research results indicated that NT can endow RPC with antimicrobial property through their microorganism biodegradation properties. The inhibition and elimination rates of NTMRPC to its surface microorganisms were 37.35% and 80.93%, respectively. After sewage corrosion, the surface roughness, mass loss and deterioration depth of RPC were decreased by 62.57%, 15.48% and 18.44% due to the NT inclusion, respectively. In addition, the pH values of RPC in the deterioration depth ranges of 0–3 mm and 3–6 mm were increased by 11.45% and 23.62%, respectively. NT can restrain the strength deterioration of RPC in high concentration enhanced sewage. This may be due to the improved sewage biological anti-corrosion performances of RPC by inhibiting/eliminating the microorganisms on the surface of RPC as well as the enhanced sewage physical/chemical anti-corrosion performances of RPC by improving the compactness of RPC.

Original language	English
Article number	130508
Journal	Journal of Cleaner Production
Volume	337
DOIs	https://doi.org/10.1016/j.jclepro.2022.130508
Publication status	Published - 20 Feb 2022
Externally published	Yes

Keywords

Corrosion resistance mechanisms
Microorganism biodegradation
Nano titanium dioxide
Reactive powder concrete
Sewage

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Building and Construction
General Environmental Science
Strategy and Management
Industrial and Manufacturing Engineering

More information

10.1016/j.jclepro.2022.130508

Cite this

@article{57f6b252a7a1407bb7eaa4e617a0e278,

title = "Nano TiO2-engineered anti-corrosion concrete for sewage system",

abstract = "In this study, anti-corrosion concrete for sewage system was developed with nano TiO2 (NT) and reactive powder concrete (RPC). The corrosion resistances of NT modified RPC (NTMRPC) in high concentration enhanced sewage were investigated from the perspective of biological, physical and chemical corrosion resistances, respectively. In addition, mechanical properties of NTMRPC after sewage corrosion were also studied. Research results indicated that NT can endow RPC with antimicrobial property through their microorganism biodegradation properties. The inhibition and elimination rates of NTMRPC to its surface microorganisms were 37.35% and 80.93%, respectively. After sewage corrosion, the surface roughness, mass loss and deterioration depth of RPC were decreased by 62.57%, 15.48% and 18.44% due to the NT inclusion, respectively. In addition, the pH values of RPC in the deterioration depth ranges of 0–3 mm and 3–6 mm were increased by 11.45% and 23.62%, respectively. NT can restrain the strength deterioration of RPC in high concentration enhanced sewage. This may be due to the improved sewage biological anti-corrosion performances of RPC by inhibiting/eliminating the microorganisms on the surface of RPC as well as the enhanced sewage physical/chemical anti-corrosion performances of RPC by improving the compactness of RPC.",

keywords = "Corrosion resistance mechanisms, Microorganism biodegradation, Nano titanium dioxide, Reactive powder concrete, Sewage",

author = "Zhen Li and Siqi Ding and Lijuan Kong and Xinyue Wang and Ashraf Ashour and Baoguo Han and Jinping Ou",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = feb,

day = "20",

doi = "10.1016/j.jclepro.2022.130508",

language = "English",

volume = "337",

journal = "Journal of Cleaner Production",

issn = "0959-6526",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Nano TiO2-engineered anti-corrosion concrete for sewage system

AU - Li, Zhen

AU - Ding, Siqi

AU - Kong, Lijuan

AU - Wang, Xinyue

AU - Ashour, Ashraf

AU - Han, Baoguo

AU - Ou, Jinping

PY - 2022/2/20

Y1 - 2022/2/20

N2 - In this study, anti-corrosion concrete for sewage system was developed with nano TiO2 (NT) and reactive powder concrete (RPC). The corrosion resistances of NT modified RPC (NTMRPC) in high concentration enhanced sewage were investigated from the perspective of biological, physical and chemical corrosion resistances, respectively. In addition, mechanical properties of NTMRPC after sewage corrosion were also studied. Research results indicated that NT can endow RPC with antimicrobial property through their microorganism biodegradation properties. The inhibition and elimination rates of NTMRPC to its surface microorganisms were 37.35% and 80.93%, respectively. After sewage corrosion, the surface roughness, mass loss and deterioration depth of RPC were decreased by 62.57%, 15.48% and 18.44% due to the NT inclusion, respectively. In addition, the pH values of RPC in the deterioration depth ranges of 0–3 mm and 3–6 mm were increased by 11.45% and 23.62%, respectively. NT can restrain the strength deterioration of RPC in high concentration enhanced sewage. This may be due to the improved sewage biological anti-corrosion performances of RPC by inhibiting/eliminating the microorganisms on the surface of RPC as well as the enhanced sewage physical/chemical anti-corrosion performances of RPC by improving the compactness of RPC.

AB - In this study, anti-corrosion concrete for sewage system was developed with nano TiO2 (NT) and reactive powder concrete (RPC). The corrosion resistances of NT modified RPC (NTMRPC) in high concentration enhanced sewage were investigated from the perspective of biological, physical and chemical corrosion resistances, respectively. In addition, mechanical properties of NTMRPC after sewage corrosion were also studied. Research results indicated that NT can endow RPC with antimicrobial property through their microorganism biodegradation properties. The inhibition and elimination rates of NTMRPC to its surface microorganisms were 37.35% and 80.93%, respectively. After sewage corrosion, the surface roughness, mass loss and deterioration depth of RPC were decreased by 62.57%, 15.48% and 18.44% due to the NT inclusion, respectively. In addition, the pH values of RPC in the deterioration depth ranges of 0–3 mm and 3–6 mm were increased by 11.45% and 23.62%, respectively. NT can restrain the strength deterioration of RPC in high concentration enhanced sewage. This may be due to the improved sewage biological anti-corrosion performances of RPC by inhibiting/eliminating the microorganisms on the surface of RPC as well as the enhanced sewage physical/chemical anti-corrosion performances of RPC by improving the compactness of RPC.

KW - Corrosion resistance mechanisms

KW - Microorganism biodegradation

KW - Nano titanium dioxide

KW - Reactive powder concrete

KW - Sewage

UR - http://www.scopus.com/inward/record.url?scp=85122996713&partnerID=8YFLogxK

U2 - 10.1016/j.jclepro.2022.130508

DO - 10.1016/j.jclepro.2022.130508

M3 - Journal article

AN - SCOPUS:85122996713

SN - 0959-6526

VL - 337

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

M1 - 130508

ER -