Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures

Kuldeep Joshi; Archana Bohra Gupta

doi:10.64808/engineeringperspective.1770076

Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures

Abstract

Reinforced concrete silos are usually designed only for mechanical loading. This consideration is sufficient at ambient temperature. But at elevated temperature scenarios, temperature induced-instability comes into the picture. This can either lead to structural collapse or necessitates extensive repairs. In this study, thermo-mechanical behaviour of a reinforced concrete silo is investigated through finite element simulations under two fire exposure scenarios: one when it is subjected to fire from one side and other when it is subjected to fire from the bottom. 30-minute fire duration is taken following temperature-time profile as per External fire curve given by Eurocode 1. The effectiveness of a composite fire protection coating made up of heavy type gypsum and fibre glass insulation board in lowering temperature magnitude of the structure has also been studied. Its minimum thickness to maintain structural integrity for thirty minutes has been determined. In both fire exposure scenarios stresses and lateral displacements in silo increases and exceeds their permissible limits as set up by IS 456:2000. Seven thicknesses (3 cm to 9 cm) of composite coating were analysed under External fire curve. It was found that they are capable of reducing the peak temperature of fire in range of 93.87% to 96.6% respectively. Minimum thickness of 5 cm (silo heated from one side) and 4 cm (silo heated from bottom) of coating is required, which efficiently controls the ill effects of fire on structure.

Keywords

References

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Details

Primary Language

English

Subjects

Fire Safety Engineering

Journal Section

Research Article

Authors

Kuldeep Joshi ^*
India

Archana Bohra Gupta
India

Early Pub Date

December 16, 2025

Publication Date

December 30, 2025

Submission Date

August 22, 2025

Acceptance Date

October 17, 2025

Published in Issue

Year 2025 Volume: 5 Number: 4

DOI

https://doi.org/10.64808/engineeringperspective.1770076

IZ

https://izlik.org/JA76DH62ZG

Cite

RIS / Bibtex

APA

Joshi, K., & Bohra Gupta, A. (2025). Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures. Engineering Perspective, 5(4), 149-161. https://doi.org/10.64808/engineeringperspective.1770076

AMA

1.Joshi K, Bohra Gupta A. Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures. engineeringperspective. 2025;5(4):149-161. doi:10.64808/engineeringperspective.1770076

Chicago

Joshi, Kuldeep, and Archana Bohra Gupta. 2025. “Reinforced Concrete Silo With Sacrificial Composite Coating Under Elevated Temperatures”. Engineering Perspective 5 (4): 149-61. https://doi.org/10.64808/engineeringperspective.1770076.

EndNote

Joshi K, Bohra Gupta A (December 1, 2025) Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures. Engineering Perspective 5 4 149–161.

IEEE

[1]K. Joshi and A. Bohra Gupta, “Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures”, engineeringperspective, vol. 5, no. 4, pp. 149–161, Dec. 2025, doi: 10.64808/engineeringperspective.1770076.

ISNAD

Joshi, Kuldeep - Bohra Gupta, Archana. “Reinforced Concrete Silo With Sacrificial Composite Coating Under Elevated Temperatures”. Engineering Perspective 5/4 (December 1, 2025): 149-161. https://doi.org/10.64808/engineeringperspective.1770076.

JAMA

1.Joshi K, Bohra Gupta A. Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures. engineeringperspective. 2025;5:149–161.

MLA

Joshi, Kuldeep, and Archana Bohra Gupta. “Reinforced Concrete Silo With Sacrificial Composite Coating Under Elevated Temperatures”. Engineering Perspective, vol. 5, no. 4, Dec. 2025, pp. 149-61, doi:10.64808/engineeringperspective.1770076.

Vancouver

1.Kuldeep Joshi, Archana Bohra Gupta. Reinforced Concrete Silo with Sacrificial Composite Coating Under Elevated Temperatures. engineeringperspective. 2025 Dec. 1;5(4):149-61. doi:10.64808/engineeringperspective.1770076