Dr. Ramakrishna Bag

Dr. Ramakrishna Bag
Associate Professor
Civil and Environmental Engineering

Ph.D (2012) Cardiff University, UK

M.E. (2007) IISc, Bangalore, India

B.E. (2005) IIEST, Shibpur, India

0091-6115-233 704
rkbag[AT]iitp.ac.in
Research Areas
    • Unsaturated soil mechanics

    • Swelling, Shrinkage, Water Rention Behaviour of Expansive Soil

    • Stabilization of Expansive soil / Ground Improvement

    • Biochar application in Geotechnical Engineering
    • Sustainable Earth Energy / Energy Geotechnics

    • Utilization of Industrial waste (red mud, fly ash, foxnut shell) in Geotechnical Engineering

    • Thermo-Hydro-Mechanical behavior of soil and Rock 

    • CO2 Sequestration

    • Unsaturated and Saturated Slope Stability

    • Environmental Geotechnics

    • High level radioactive waste Disposal/ Buffer material behaviour of Deep Gelogical Repository

Courses taught at IIT P
  • CE6109/ CE582: Geoenvironmental Engineering

    CE2202/ CE214: Soil Mechanics

    CE2205/ CE319: Numerical Methods in Civil Engineering

    CE1101/CE1102: Engineering Graphics

    CE392: Transportation Engineering Laboratory

    CE393: Structural Engineering and Materials Laboratory

    CE401: Infrastructure Laws and Professional Ethics

    CE491: Design Studio

    CE596: Civil Engineering Lab -II

    CE599: Geotechnical Engineering Laboratory

    CE111: Engineering Drawing (Tutorial)

Students
Sr. No.PhotoArea of ReasearchDegree
1
Dr. Koteswaraarao Jadda, Completed February 2022, Assistant Professor - NIT Jalandhar
THMC behaviour of compacted bentonite
2
Dr. Chhaya, completed August 2024
Waste water treatment
3
Dr. Shailesh Kumar Yadav, completed November 2025, Assistant Professor, SGT University
Use of Biochar in Geotechnical and Geoenvironmental Engineering
4
Pramadhanatha Reddy Pocha
Use of red mud as landfill liner material
5
Banavath Prasad Nayak
Thermo-Hydro-Mechanical behaviour of bentonite used as buffer material in nuclear waste disposal repository
6
Ashutosh Kumar
Experimental and Numerical investigation to asses the behaviour of Energy pile
7
Bipadtaran Khan
Thermo-Hydro-Mechanical behaviour of rock for nuclear waste disposal repository
8
Jitendra Kumar
use of natural Geotexile in Geotechnical Engineering
9
Shashank Kumar
CO2 Sequestration
Professional Experience
    • October 2022- continue: Associate Professor, Dept. of Civil and Env. Engg., IIT Patna

    • November 2021 - November 2022: Head, Institute Works Department (IWD), IIT Patna

    • March 2019- October 2021: Head, Dept. of Civil and Env. Engg., IIT Patna

    • June 2017-October 2022: Assistant Professor, Dept. of Civil and Env. Engg., IIT Patna

    • July 2014 – May 2017: Assistant Professor, NIT Rourkela, Odisha, India

    • Nov 2011 – June 2014: Postdoctoral Researcher-School of Engineering, Cardiff University, UK

    • Aug 2007 – Nov 2007: Senior Geotechnical Design Engineer, L&T ECC, Chennai, India

Administrative Experience
    • November 2021 - November 2022: Head, Institute Works Department (IWD), IIT Patna

    • March 2019- October 2021: Head, Dept. of Civil and Env. Engg., IIT Patna

    • Dec 2017- March 2019: Professor-in-charge (PIC) Landscaping, IIT Patna

Awards & Honours
    • 2025: Member, Board of Studies : Bhar Engineering University

    • 2025: Member, Board of Studies, B C Roy Engineering College, Durgapur

    • 2024: Honorary Secretary, Indian Geotechnical Society (IGS) Patna Chapter

    • 2023: SERB, Govt. of India, International Travel Scheme (ITS) for participating in “Symposium on Energy Geotechnics (SEG23 at TU Delft, Netherlands.

    • 2008: Ph.D Scholarship, Cardiff University, UK

Member of Professional bodies
    • AMIE - Associate member of Institution of Engineers (India) Limited.

    • Life member – Ground Engineering Group, ICE Wales Chapter.

    • Indian Geotechnical Society: Life Member, 2019 onward

Patents
  • Patent No: 507765 

    Application No: 201831000877

    Title: Portable steam distribution system consisting of a flexible jacket for steam curing

    Patentee: Dr Ramakrishna Bag, Sidharth Kumar Patra, Dr. Robin Davis P

    Status: Granted

Publications / Journals
  • Journals:

    • Yadav S K, Bag R, 2026, Effects of Specimen Geometry and Bamboo Biochar Amendment on Anisotropic Shrinkage Behavior of Soils, Geotechnical and Geological Engineering Journal, accepted.

    • Yadav S K, Bag R, 2026, Hydro-Mechanical Behaviour of bamboo biochar Amended soil under various environmental conditions. ASCE J of Materials in Civil Engineering, 38 (1), 04025520. 

    • Jadda K, Pocha P R, Bag R, 2025, Insight into Swelling pressure evaluation of two Indian bentonites: Microstructure Perspective, Indian Geotechnical Journal, 29 (15), 3311-3337. 

    • Nayak B P, Bag R, Bajpai R K, Acharya A, 2025, Experimental investigations on thermo-hydro-mechanical properties of compacted bentonite-based backfill materials. Bulletin of Engineering Geology and the Environment 84(8),1-19.

    • Pocha P R, Bag R, 2025, Impact of Ca and Na bentonite, and quicklime on the mechanical and hydraulic properties of red mud. European Journal of Environmental and Civil Engineering, 29 (15), 3311-3337.

    • Jaiswal A, Verma A K, Jha M K, Bag R, Singh T N, 2025, Effect of Elevated Temperature on Mechanical and Structural Properties of Barmer Bentonite, J of Geological Society of India, 101(7), 1039-1045.

    • Nayak B P, Bag R, 2025, Effect of hydration at various temperatures on the thermal conductivity of compacted Indian bentonites, Annals of Nuclear Energy, 218, 111413.

    • Yadav S K, Bag R, 2025, Influence of prolong curing, freeze thaw cycles on strength and compaction condition on water retention behaviour of bamboo biochar amended soils, Scientific Reports,  15(1), 9.

    • Chhaya, Raychoudhury T, Bag R, 2025, Insight into the Diclofenac and Carbamazepine Removal by Bacillus subtilis BMT4i Immobilized on Different Activated Carbons: A Comparative Removal Study by Activated Carbon, Bacterial Cell, and Its Composite, International Journal of Environmental Research, 19 (1), 28

    • Rabbani A, Bag R, Samui P, Kumari S, 2025, Remediation of Heavy Metals from Contaminated Soil: State of the Art Review of Sources, Risk, Policies and available Remediation Techniques, Transactions of the National Academy of Engineering, 10 (1), 19-31.

    • Yadav S K, Raj A, Bag R, 2024, Influence of Sugarcane Bagasse Biochar Amendment on Low Plastic Clay Soil Performance: A Novel Approach for Geotechnical and Geo-environmental Applications, Indonesian Geotechnical Journal, 3(3), 31-42.

    • Hasan M A, Bodhanam P, Bag R, Baadiga R, 2024, The State-of-the-Art Review on Prediction of Subgrade CBR: Past and Present Trends, Indian Geotechnical Journal, 55(5), 3410-3431.

    • Pocha P R, Bag R, 2024, An Experimental Investigation on the Hydraulic and Mechanical Properties of Red Mud Amended with Monovalent and Divalent Bentonites, International Journal of Geosynthetics and Ground Engineering 10 (6), 91.

    • Chhaya, Bag R, Raychoudhury, T, 2024, Effect of a typical anticonvulsant drug carbamazepine on the aggregation of zinc oxide nanoparticle and an insight into their co-transport in porous media, Environmental Nanotechnology, Monitoring and Management, 21, 100933.

    • Bag R, Kumari P, Jaada K, Tadza MYM, 2024, Geo-microbial identification of two Indian bentonites and their impact on barrier performance for disposal of nuclear waste, ASCE J of Hazardous, Toxic and Radioactive Waste, 28 (2).

    • Chhaya, Bag R, Raychoudhury T, 2023, Pharmaceutical-Based Emerging Contaminants Removal from Aqueous Solution by Different Granular Activated Carbon-Based Adsorbents, Journal of Water Chemistry and Technology, 45, 411-418.

    • Jadda K, Bag R, 2023, Swelling behaviour of divalent and monovalent Indian bentonites in isochoric and free swelling conditions, Bulletin of Engineering Geology and the Environment, 82, 217.

    • Yadav S K, Bag R, 2023, Effect of Bamboo biochar on strength and water retention properties of low plastic clay and silty sand, Scientific Reports, 13(1), 6201.

    • Bag R, Agarwal S, Baral S S, Singhal A K, Biswas K, 2023, Recycling of plastic waste as course aggregate in concrete for sustainable development, International journal of Environment and Waste Management, 31 (1), 1-18. 

    • Bag R, Bharti A, Jadda K, Sai Kumar M L S, 2022, Comparative study between MLR and ANN techniques to predict swelling pressure of expansive clays, Geotechnical and Geological Engineering Journal,  

    • Jadda K, Bag R, 2022, The fabric evaluation of two Indian bentonites subjected to different suctions and consolidation pressures, Engineering Geology, 106535, 

    • Bag R, Jadda K, 2021, Influence of water content and dry density on pore size distribution and swelling pressure of two Indian bentonites, Bulletin of Engineering Geology and the environment,  80 (11), 8597-8614

    • Jadda K, Bag R, 2021, Thermochemical effect on swelling pressure and microstructure of monovalent and divalent Indian bentonites, ASCE J of Hazardous, Toxic and Radioactive waste

    • Bag R, Mandal M, Singhal V, 2021, Rectification of the Tilt and Shift of Well Foundation: A Numerical and Analytical Solution, Indian Geotechnical Journal, 1-15.

    • Jadda K, Bag R, 2020, Variation of swelling pressure, consolidation characteristics and hydraulic conductivity of two Indian bentonites due to electrolyte concentration, Engineering Geology, 272, 105637.

    • Jadda K, Bag R, 2020, Effect of initial compaction pressure and elevated temperature on swelling pressure of two Indian bentonites, Environmental Earth Sciences, 79(9) 197.

    • Bag R, Rabbani A2017, Effect of temperature on swelling pressure and compressibility characteristics of soil, Applied clay science, 136, 1-7. 

    • Tripathy, S.,Thomas, H.R., Bag R, 2015, Geoenvironmental Application of Bentonites in Underground Disposal of Nuclear Waste: Characterisation and Laboratory element tests, ASCE Journal of Hazardous, Toxic and Radioactive waste.

    • Tripathy, S., Bag R, Thomas, H.R., 2014, Effects of post-compaction residual stress, on swelling pressures of a compacted bentonite, Geotechnical and Geological Engineering Journal, 32, 749-763. 

    • Tripathy, S., Bag R, Thomas, H.R., 2014, Effect of Stern-layer on the Compressibility behaviour of bentonites’, ActaGeotechnica, 9(6), 1097-1109. 

    •  
    • Book Chapter:
      • Bag R, Iyer s, Acharya A, Bajpai R K, 2025, Insights into Thermo-Hydro-Mechanical behaviour of Bentonite for Nuclear Waste Disposal: A Numerical Simulation study, Proceedings of the Indian Geotechnical Conference (IGC 2024), Volume 4: Geo-Environmental Engineering, Springer Book Series.

      • Yadav S K, Kumar A, Bag R, 2025, Strength and Water Retention Behavior of Black Cotton Soil amended with Fox Nut shell Ash: An Experimental Investigation, Geo-environmental Engineering and Unsaturated Soil Mechanics: Proceedings of the Indian Geotechnical Conference 2023. Springer Book Series.

      • Bag R, Mandal M, 2025, Influence of multiple U tube heat exchangers of an Energy Pile on heat Extraction from the ground. Advancements in Underground Infrastructures, CRC Press.

      • Yadav S K, Bag R, 2023, Effect of Bamboo biochar on consolidation characteristics of low plastic clay and silty sand,  International conference on Mediterranean Geosciences Union, 480-486, Springer Nature Switzerland.

      • Kuamr A, Bag R, Samui P, 2023, Design and Reliability analysis of energy pile using soft computing technique and a comparative study between the developed soft compu-ting models, Symposium on Energy Geotechnics, Delft, Netherlands, 1-2.

      • Yadav S K, Bag R, 2023, Effect of bamboo biochar on the hydraulic conductivity of two different compacted soils, Proceedings of the 9th International Congress on Environmental Geotechnics, Chania, Greece, 25-28, 

      • Nayak B P, Bag R, Acharya A, Bajpai R K, 2022, Thermo-Hydro-Mechanical Column Test on Compacted Bentonite Buffer: Experimental Setup Development and Preliminary Results, Indian Geotechnical Conference, 383-392.

      • Bag R, Jadda K, 2021, The Effect of Sand Ratio on Suction and Swelling Pressure of Two Bentonite -Sand Mixtures, Proceedings of the 1st Indo-China Research Series in Geotechnical and Geoenvironmental Engineering. Lecture Notes in Civil Engineering, vol 123. Springer, Singapore. 

      • Mandal M, Roy N, Bag R, 2021, Effect of Plastic Waste on Strength of Clayey Soil and Clay Mixed with Fly Ash, Problematic Soils and Geoenvironmental Concerns. Lecture Notes in Civil Engineering, vol 88. Springer, Singapore. 

      • Mandal M, Bag R, 2020, Effect of pile and heat exchanger properties on total heat extraction of an energy pile-A numerical study, E3S Web Conf. 2nd International Conference on Energy Geotechnics (ICEGT 2020): Issues Related to Energy Piles, 205, 05024, pp 1-6, 

      • Jadda K, Bag R, 2020, The Effect of Saline Fluid on Hydraulic Properties of Clays, Advances in Computer Methods and Geomechanics, Lecture Notes in Civil Engineering book series, 56, pp 41-54. 

      • Bag R, Agarwal A, Praneeth R, 2020, Recycling of Domestic Plastic Waste Bags as Fine Aggregate in Concrete, IOP Conference Series: Materials Science and Engineering, Volume 936, 012009

      • Tadza M Y M, Tadza M A M, Bag R and Harith N S H, 2018, Potential impact of Andrassy bentonite microbial diversity in the long-term performance of a deep nuclear waste repository IOP Conf. Series: Materials Science and Engineering 298,012009, pp 1-6 

      • Tripathy, S., Bag R, Thomas, H.R., 2014, Enhanced isothermal effect on swelling pressure of compacted MX80 bentonite, Engineering Geology for Society and Territory - Volume 6: Applied Geology for Major Engineering Projects, 537-539. 


      Conference Papers:
      • Kumar A, Sunil, Sinha R, Bag R, Thakur AD, 2024, The effect of biomass gasifier residue on the compressive strength of cementitious composites, International Conference on Functional Materials (ICFM 2024), IIT Kharagpur, January 9-11, 2024.
      • Kumar A, Sunil, Sinha R, Bag R, Thakur AD, 2024, Influence of Biomass-derived Carbon Nanomaterials on the Compressive and Tensile Strengths of Cement-Based Composites, Fourth International Conference on Materials Science (ICMS 2024), Tripura University, 31st January- 2nd February, 2024.
      • Yadav SK, Kumar A, Bag R, 2023, Strength and Water Retention Behavior of Black Cotton Soil Amended with Fox Nutshell Ash: An Experimental Investigation, Indian Geotechnical Conference (IGC-23), IIT Roorkee, December 14-16, 2023
      • Kumar A, Bag R, Samui P, 2023, Design and Reliability analysis of Energy Pile using soft computing technique and a comparative study between the developed soft computing models, Symposium on Energy Geotechnics (SEG23), 3-5 October, 2023, TU Delft, Netherlands.
      • Yadav S K, Bag R, 2023, Effect of bamboo biochar on the hydraulic conductivity of two different compacted soils, 9th International Congress on Environmental Geotechnics, 25-28 June 2023, Chania, Greece, pp 167-175. https://doi.org/10.53243/ICEG2023-118
      • Nayak B P, Bag R, Acharya A, Bajpai R K, 2022, Thermo-hydro-mechanical column test on compacted bentonite buffer: experimental setup development and preliminary results, Indian Geotechnical Conference, Kochi, December 15-17, 2022.
      • Jadda K, Kumar I S, Bag Ramakrishna, 2019, Hydro-mechanical behavior of glass fiber reinforced clay barriers, Indian Geotechnical Conference, Surat, India, Dec. 19-21.
      • Jadda K. and Bag Ramakrishna. 2019. The Effect of Saline Fluid on Hydraulic Properties of Clays. International Association for Computer Methods and Advances in Geomechanics (IACMAG) Symposium, IIT Gandhinagar, March 5-7.
      • Bag Ramakrishna, Jadda K, Srikanth R N. 2018 Effect of sand ratio on Swelling pressure and Hydraulic conductivity of an Indian bentonite-sand mixture, Accepted for publication in 7th International Conference on Unsaturated soil, Hong Kong, Aug. 3-5, pp 1-6.
      • Bag Ramakrishna, Jadda K, Katipelly R R. 2017, Ageing effect on microstructure of compacted bentonite under various applied suction, Goetchnics for natural and engineered sustainable technologies, Indian Geotechnical Conference, IIT Guwahati, Dec. 14-16, pp 1-4.
      • Bag Ramakrishna, Siddharthan, S. 2016. Establishing soil-water characteristic by filter paper technique. International conference on soil and Environment, Bangalore, India. Vol 1, pp 1-6.
      • Bag Ramakrishna, Tripathy, S., Thomas, H.R., 2010, Behaviour of Compacted MX80 Bentonite under Thermo-hydraulic Gradients, In proceedings of Sixth International Congress on Environmental Geotechnics, Delhi, India, Datta, M., Srivastava, R.K., Ramana, G.V., Shahu, J.T., pp 1401-1404.
      • Tripathy, S., Bag Ramakrishna, Thomas, H.R., 2010, Desorption and Consolidation Behaviour of Initially Saturated Clays, In proceedings of Fifth International Conference on Unsaturated Soils, Barcelona, Spain, Alonoso, E., Gens, A., pp 381-386.
                        
Invited Talks
    • 7th September 2021: “Geosynthetics for landfill liners” during 5 day faculty development program organized by Samrat Ashok Technological Institute, Vidisha, MP.
    •  
    • 14th July 2021: “Emerging areas of Geotechnical Engineering” during 5 day faculty development program organized by SKDAV Govt. polytechnic, Rourkela.
    •  
    • 10th March 2020: “Confinement of radioactive waste - deep geological repository” at NIT Warangal (during online short term course : Sustainable Engineered Waste Barrier Systems (SEWBS), 8th -12th March 2020).
    •  
    • May 18th, 2020: “Radioactive waste Disposal – Scope and Opportunities of Civil Engineers”, Webnair organised by Abacus Institute of Engineering and Management, Magra, Hoogly, West Bengal.
    •  
    • August 3rd, 2019: “Ground Source Energy- an alternative Energy resource”, Inauguration of IGS Patna Chapter & International Workshop on Advances in Geoenvironmental Engineering and Sustainability, Patna.
    •  
    • July 12th -13th 2018: “Radioactive waste management - India scenario” during Programme for Networking Workshop On Contaminated Sites: Subsurface Investigations and Remediation, organised by IIT Delhi, sponsored by Govt. of India.
    •  
    • 5th-6th October 2017, BARC Mumbai: “effect of compaction stress and elevated temperature on swelling pressure development in smectite clay”, BARC-NRG-BRNS theme meeting in site characterization, design and safety assessment of radioactive waste disposal facilities.


    Conference Organised

    • Dec 3, 2024: Organised one day workshop on "Geotechnics for sustainable Development" at IIT Patna.
    • July 1-10, 2020, Conducted international webinar on “Recent Advances in Geotechnical Engineering Research and Practice (RAGeo-RP)” at IIT Patna, organizing team: 


    B.Tech and M.Tech project guidance

    At IIT Patna

    MTech in Geotechnical Engineering

    • 2025: Abhay, Pursuing PhD at IIT Bhu
    • 2025: Utkarsh Srivastav, Pursuing PhD at IIT Delhi, Best MTP award received.
    • 2025: Saket Kumar Nirala
    • 2024: Md Asif Khan, Section Engineer, Indian Railways.
    • 2024: Fahim Ahmad Khan
    • 2024: Sashi Sekhar, JE, Govt. of Jhakhand

    M.Tech in Civil Engineering

    • 2025: Shashank Kumar
    • 2024: Kumari Surbhi: Assistant Engineer, Govt. of Bihar
    • 2022: Pranaw Ambastha: Post Graduate Engineer Trainee, L&T Construction – Heavy Civil Infra IC

    M.Tech in Civil and Infrastructure Engineering

    • 2020: Priti Kumari, Assistant Engineer, Govt. of Bihar.

    B.Tech in Civil Engineering

     

    • 2025: Rishit Bal, Software Engineer

    • 2025: Anand Kumar

    • 2025: Prakash Kumar

    • 2024: Amrit Raj

    • 2024: Ashok Bishnoi

    • 2024: Yash Choudhary

    • 2023: Ankit Kumar: Allen career institute

    •  
    • 2023: Amaan Hussain: EXL Services
    •  
    • 2023: Bagisha Kumari: pursuing MDes at IISc Bangalore
    •  
    • 2022: Kaushik Komaduri (Best BTP award winner): Software Development Engineer, Amazon
    •  
    • 2022: Abhishek Kumar
    •  
    • 2021: Shivam Prakash: Project Engineer, National Council for Cement and Building Materials (NCCBM)
    •  
    • 2021: Neeraj Paraliya
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    • 2020: Abhishek Bharti
    •  
    • 2020: Abhishek Singh
    •  
    • 2019: Injamala Sharon Kumar, MS - University of British Columbia, Canada, Sept 2020 session.
    •  
    • 2019: Harshavardhan Reddy.


    At NIT Rourkela

    MTech in Geotechnical Engineering

    • 2017: Krishnan Kumar, PhD - IIT Kharagpur
    •  
    • 2017: PV Pavan Kumar (co-guide), PhD – IIT Bhubaneswar
    •  
    • 2017: Rongala Srikanth N, Asst. Engineer, AP Govt
    •  
    • 2016: Ahsan Rabbani, Faculty- Darbhanga College of Engineering, Bihar.
    •  
    • 2016: Ramana Katipelly Reddy, Asst. Engineer, Telangana Govt.
    •  
    • 2016: Vikas Kumar
    •  
    • 2015: Siddharthan S, ad hoc Faculty-NIT Puducherry.
    •  
    • 2015: Haribabu K, Asst. Manager, L&T
    •  
    • 2015: Rajesh Sarkar

    MTech in Safety Engineering

    • 2017: Chitra
    •  
    • 2016: Sanil Kuriakose, Health Safety/ Risk coordinator, ALEC Construction, UAE
    •  
    • 2016: Shahnwaz Ahmed, EHS Manager, GE
    •  
    • 2016: Apoorv Singh Chauhan, Risk Manager, Chola MS Risk Services
    •  
    • 2016: Kumar Asish, Engineer, GE power
    •  
    • 2016: Abhinash Mohanty
    •  
    • 2016: Abhipsa Das, PhD SOA University, Bhubaneswar

    BTech in Civil Engineering

    • 2017: Kiran Kumar Reddy, Civil Engineer, L&T
    •  
    • 2017: Naresh Banothu
    •  
    • 2016: Akhilesh Kumar Singh
    •  
    • 2015: Ambuj Shukla, Entrepreneur
    •  
    • 2015: Rudrendra Kashyap