The damage evolution behavior of polypropylene fiber reinforced concrete subjected to sulfate attack based on acoustic emission

Liang, Ninghui; Mao, Jinwang; Yan, Ru; Liu, Xinrong; Zhou, Xiaohan

doi:10.1007/s11709-022-0810-8

Front. Struct. Civ. Eng.

2022

DOI: 10.1007/s11709-022-0810-8

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The damage evolution behavior of polypropylene fiber reinforced concrete subjected to sulfate attack based on acoustic emission

Ninghui Liang

Jinwang Mao

Ru Yan

et al.

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Cited by 7 publications

References 28 publications

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Damage evolution behavior of tunnel lining concrete with non‐through crack under single‐sided sulfate attack

Liu,

Zhuang,

Zhou

et al. 2024

Structural Concrete

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In order to study the dynamic damage evolution law of tunnel‐lining concrete with non‐through crack under single‐side sulfate attack, a 420‐day sulfate attack concrete test was conducted and the uniaxial compression and acoustic emission (AE) tests were carried out on each corrosion time. The test results showed that the compressive strength of each group can be divided into rising stage and falling stage, and the existence of non‐through crack reduced the compressive strength of concrete specimens and accelerated the corrosion of concrete specimens by sulfate. AE ringing count can be divided into compaction stage, elastic stage, yield stage, and post‐peak stage; the variation patterns of AE varied at different stages. Sulfate attack caused the yield point of concrete to advance. With the increase of corrosion time, microcracks increased gradually, cement mortar was consumed continuously, concrete spalling occurred, the proportion of AE cumulative ringing count Stage II decreased gradually, and the proportion of Stage III increased. Non‐through crack changed the energy storage of Stages II and III and reduced the AE activity of concrete after corrosion. The deeper the crack was, the smaller the average cumulative ringing count was and the lower the AE activity was. AE cumulative ringing counts can be used to characterize the damage evolution of corroded concrete.

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Damage evolution behavior of tunnel lining concrete with non‐through crack under single‐sided sulfate attack

Liu,

Zhuang,

Zhou

et al. 2024

Structural Concrete

View full text Add to dashboard Cite

show abstract

Moisture transports in high-cycle compressive fatigue-damaged concrete

Fang,

Jiang,

2023

Construction and Building Materials

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Investigation on cracking resistance mechanism of basalt-polypropylene fiber reinforced concrete based on SEM test

Liang,

Geng,

Mao

et al. 2024

Construction and Building Materials

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The damage evolution behavior of polypropylene fiber reinforced concrete subjected to sulfate attack based on acoustic emission

Cited by 7 publications

References 28 publications

Damage evolution behavior of tunnel lining concrete with non‐through crack under single‐sided sulfate attack

Damage evolution behavior of tunnel lining concrete with non‐through crack under single‐sided sulfate attack

Moisture transports in high-cycle compressive fatigue-damaged concrete

Investigation on cracking resistance mechanism of basalt-polypropylene fiber reinforced concrete based on SEM test

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