Chloride detection in concrete using wireless fidelity (Wi-Fi) signal

Paul, Suvash Chandra; Al Mamun, Fahim; Hasan, Noor Md. Sadiqul; Shaun, Ferdous Jahan; Kong, Sih Ying; Wong, Leong Sing; Babafemi, Adewumi John

doi:10.1007/s41062-024-01378-9

Innov. Infrastruct. Solut.

2024

DOI: 10.1007/s41062-024-01378-9

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Chloride detection in concrete using wireless fidelity (Wi-Fi) signal

Suvash Chandra Paul,

Fahim Al Mamun,

Noor Md. Sadiqul Hasan

et al.

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2024

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Sustainable cement mortar production using rice husk and eggshell powder: a study of strength, electrical resistivity, and microstructure

Paul,

Basit,

Hasan

et al. 2024

Smart Constr. Sustain. Cities

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In order to preserve the natural fine aggregates and proper waste resources recycling, rice husk and eggshell powders were used as filler materials in production of standard M30 grade mortar. Natural fine aggregate was replaced with rice husk powder (RHP) at 3%, 5%, 7%, 10%, 12%, and 15%, and with eggshell powder (EP) at 3%, 5%, and 7%, both at a constant water-to-cement ratio of 0.40. Compressive strength, split tensile strength, water absorption, pore distribution, and electrical resistivity of the mortar samples were investigated. Also, XRD, SEM, and EDS were performed to observe the samples’ chemical phases and microstructure. The results show that up to 15% RHP reduced the compressive strength by 20–35%, whereas the up to 7% EP obtained a similar (varies by 0–5%) result compared to the control sample at 28 days. Furthermore, the results suggest that sand replacement with RHP and EP had no impact on the water absorption and pore volume of mortars. Also, the samples made with up to 15% RHP and 7% EP improved the resistivity by up to 80% and 15%, respectively, providing better resistance to chloride ion migration. Based on the results, it is recommended to use the RHP and EP up to a level of 5% and 7%, respectively, in sustainable M30 grade mortar production.

show abstract

Sustainable cement mortar production using rice husk and eggshell powder: a study of strength, electrical resistivity, and microstructure

Paul,

Basit,

Hasan

et al. 2024

Smart Constr. Sustain. Cities

View full text Add to dashboard Cite

show abstract

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Chloride detection in concrete using wireless fidelity (Wi-Fi) signal

Cited by 1 publication

References 55 publications

Sustainable cement mortar production using rice husk and eggshell powder: a study of strength, electrical resistivity, and microstructure

Sustainable cement mortar production using rice husk and eggshell powder: a study of strength, electrical resistivity, and microstructure

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