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Evaluation of Properties of Shotcrete Material for Underground Cavern for Hydro Power Project

Shah, Anandji Kalyanji / Shroff, Arvind V.

In this paper described the determination of properties of shotcrete with steel fibers reinforcement, strictly as per ASTM standard method C 1018-89^ε−1 (May 1990). The testing was done using closed- loop servo controlled electro-hydraulic ± 10t MTS system acquired under UNDP. This shotcrete was adopted by the Hindustan Construction Company, for use in underground caverns for Koyana Project. Using special MTS bend test fixture, the sawn beams with Dramix steel fibers were tested under third-point loading, applying constant rate of deflection of 0.05 mm per minute. The X–Y Recorder gave autographical record. From this record the point, deflection, strength and toughness at First-Crack are evaluated. Toughness Indices I_5,I_10,I₂₀ and Residual Strength Factors R_{5, 10} and R_{10, 20} are determined. The performance of this shotcrete versus elastic, elastic–plastic, brittle material is indicated.

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Evaluation of Properties of Shotcrete Material for Underground Cavern for Hydro Power Project

Shah, Anandji Kalyanji / Shroff, Arvind V.

In this paper described the determination of properties of shotcrete with steel fibers reinforcement, strictly as per ASTM standard method C 1018-89^ε−1 (May 1990). The testing was done using closed- loop servo controlled electro-hydraulic ± 10t MTS system acquired under UNDP. This shotcrete was adopted by the Hindustan Construction Company, for use in underground caverns for Koyana Project. Using special MTS bend test fixture, the sawn beams with Dramix steel fibers were tested under third-point loading, applying constant rate of deflection of 0.05 mm per minute. The X–Y Recorder gave autographical record. From this record the point, deflection, strength and toughness at First-Crack are evaluated. Toughness Indices I_5,I_10,I₂₀ and Residual Strength Factors R_{5, 10} and R_{10, 20} are determined. The performance of this shotcrete versus elastic, elastic–plastic, brittle material is indicated.

Evaluation of Properties of Shotcrete Material for Underground Cavern for Hydro Power Project

Shah, Anandji Kalyanji / Shroff, Arvind V.

In this paper described the determination of properties of shotcrete with steel fibers reinforcement, strictly as per ASTM standard method C 1018-89^ε−1 (May 1990). The testing was done using closed- loop servo controlled electro-hydraulic ± 10t MTS system acquired under UNDP. This shotcrete was adopted by the Hindustan Construction Company, for use in underground caverns for Koyana Project. Using special MTS bend test fixture, the sawn beams with Dramix steel fibers were tested under third-point loading, applying constant rate of deflection of 0.05 mm per minute. The X–Y Recorder gave autographical record. From this record the point, deflection, strength and toughness at First-Crack are evaluated. Toughness Indices I_5,I_10,I₂₀ and Residual Strength Factors R_{5, 10} and R_{10, 20} are determined. The performance of this shotcrete versus elastic, elastic–plastic, brittle material is indicated.

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Title:

Evaluation of Properties of Shotcrete Material for Underground Cavern for Hydro Power Project

Additional title:

Lecture Notes in Civil Engineering

Contributors:

Jose, Babu T. (editor) / Sahoo, Dipak Kumar (editor) / Oommen, Thomas (editor) / Muthukkumaran, Kasinathan (editor) / Chandrakaran, S. (editor) / Santhosh Kumar, T. G. (editor) / Shah, Anandji Kalyanji (author) / Shroff, Arvind V. (author)

Conference:

Indian Geotechnical Conference ; 2022 ; Kochi, India

Published in:

Proceedings of the Indian Geotechnical Conference 2022 Volume 5 ; Chapter: 22 ; 261-272

Lecture Notes in Civil Engineering ; 483

Publication date:

2024-07-20

Size:

12 pages

ISBN:

978-981-97-3389-7 , 978-981-97-3388-0

ISSN:

2366-2565 , 2366-2557

DOI:

https://doi.org/10.1007/978-981-97-3389-7_22

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Underground cavern , Shotcrete , ASTM C-1018 , First crack , Deflection , Strength , Toughness indices , Residual strength factors Engineering , Geoengineering, Foundations, Hydraulics , Building Materials , Geotechnical Engineering & Applied Earth Sciences

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