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    Simulation Study of Three-Stage Corrosion of Portland, Aluminate, and Alkali-Activated Cementitious Materials in Sewers

    Source: Journal of Materials in Civil Engineering:;2025:;Volume ( 037 ):;issue: 002::page 04024489-1
    Author:
    Lijuan Kong
    ,
    Yaru Sun
    ,
    Wenjing Zhao
    ,
    Jiahui Li
    ,
    Shaoming Sun
    ,
    Haoyu Jiao
    ,
    Yazhou Liu
    DOI: 10.1061/JMCEE7.MTENG-18457
    Publisher: American Society of Civil Engineers
    Abstract: To simulate the service behavior of new-made concrete pipelines in a sewage environment, the corrosion of different mortars in three stages of abiotic neutralization, neutral, and acidophilic bacteria action was studied. The alkali-activated mortars showed a more intact appearance, lower loss rates of mass and strength, and less biofilm attachment, but greater neutralization depth compared with ordinary portland cement mortar (OPCm) after corrosion. Based on the establishment of a two-stage linear model of corrosion initial and progressive periods, the predicted service life of alkali-activated fly ash mortar is approximately 2.5 times that of OPCm, and longer than that of calcium aluminate cement mortar.
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      Simulation Study of Three-Stage Corrosion of Portland, Aluminate, and Alkali-Activated Cementitious Materials in Sewers

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4303916
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    • Journal of Materials in Civil Engineering

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    contributor authorLijuan Kong
    contributor authorYaru Sun
    contributor authorWenjing Zhao
    contributor authorJiahui Li
    contributor authorShaoming Sun
    contributor authorHaoyu Jiao
    contributor authorYazhou Liu
    date accessioned2025-04-20T10:03:37Z
    date available2025-04-20T10:03:37Z
    date copyright11/25/2024 12:00:00 AM
    date issued2025
    identifier otherJMCEE7.MTENG-18457.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4303916
    description abstractTo simulate the service behavior of new-made concrete pipelines in a sewage environment, the corrosion of different mortars in three stages of abiotic neutralization, neutral, and acidophilic bacteria action was studied. The alkali-activated mortars showed a more intact appearance, lower loss rates of mass and strength, and less biofilm attachment, but greater neutralization depth compared with ordinary portland cement mortar (OPCm) after corrosion. Based on the establishment of a two-stage linear model of corrosion initial and progressive periods, the predicted service life of alkali-activated fly ash mortar is approximately 2.5 times that of OPCm, and longer than that of calcium aluminate cement mortar.
    publisherAmerican Society of Civil Engineers
    titleSimulation Study of Three-Stage Corrosion of Portland, Aluminate, and Alkali-Activated Cementitious Materials in Sewers
    typeJournal Article
    journal volume37
    journal issue2
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/JMCEE7.MTENG-18457
    journal fristpage04024489-1
    journal lastpage04024489-13
    page13
    treeJournal of Materials in Civil Engineering:;2025:;Volume ( 037 ):;issue: 002
    contenttypeFulltext
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