Navigation

  • Skip to Content
NTNU Home NTNU Home

ntnu.edu

  • Studies
    • Master's programmes in English
    • For exchange students
    • PhD opportunities
    • All programmes of study
    • Courses
    • Financing
    • Language requirements
    • Application process
    • Academic calendar
    • FAQ
  • Research and innovation
    • NTNU research
    • Research excellence
    • Strategic research areas
    • Innovation resources
    • PhD opportunities
  • Life and housing
    • Student in Trondheim
    • Student in Gjøvik
    • Student in Ålesund
    • For researchers
    • Life and housing
  • About NTNU
    • Contact us
    • Faculties and departments
    • Libraries
    • International researcher support
    • Vacancies
    • About NTNU
    • Maps
  1. Employees

Språkvelger

Norsk

Karla Hornbostel

Download press photo
Download press photo
Foto:

Karla Hornbostel

Associate Professor

karla.hornbostel@ntnu.no
Materialteknisk Gløshaugen, Trondheim
Publications Teaching Outreach

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2025

  • Geiker, Mette Rica; Danner, Tobias Alexander; Antonsen, Roy Eivind; Polder, Rob; Hornbostel, Karla. (2025) Long-term phase changes in cathodically protected marine reinforced concrete bridge. Materials and Structures
    Academic article

2024

  • Sharma, Suraksha; Hornbostel, Karla; Geiker, Mette Rica. (2024) Cathodic Protection of Marine Prestressed Concrete Bridges – Review of Case Studies. Nordic Concrete Research
    Academic literature review
  • Sharma, Suraksha; Osmolska, Magdalena Jadwiga; Hornbostel, Karla; Bathen, Lise; Novakova, Iveta; Geiker, Mette Rica. (2024) Repair Options for Corrosion-damaged Prestressed Concrete Bridges. Nordic Concrete Research
    Academic article

2022

  • Menga, Antonia; Kanstad, Terje; Cantero, Daniel; Bathen, Lise; Hornbostel, Karla; Klausen, Anja Birgitta Estensen. (2022) Corrosion-induced damages and failures of posttensioned bridges: A literature review. Structural Concrete
    Academic article

2020

  • Osmolska, Magdalena Jadwiga; Hornbostel, Karla; Kanstad, Terje; Hendriks, Max; Markeset, Gro. (2020) Inspection and assessment of corrosion in pretensioned concrete bridge girders exposed to coastal climate. Infrastructures
    Academic article

2019

  • Geiker, Mette Rica; Danner, Tobias; Hornbostel, Karla; Michel, Alexander. (2019) Durability aspects of cracks in concrete: field observations. Norsk betongforening
    Chapter
  • Belda Revert, Andres; Hornbostel, Karla; De Weerdt, Klaartje; Geiker, Mette Rica. (2019) Macrocell corrosion in carbonated Portland and Portland-fly ash concrete - Contribution and mechanism. Cement and Concrete Research
    Academic article
  • Paciorek, Magdalena Jadwiga; Kanstad, Terje; Hendriks, Max; Hornbostel, Karla; Markeset, Gro. (2019) Durability of pretensioned concrete girders in coastal climate bridges: Basis for better maintenance and future design. Structural Concrete
    Academic article

2018

  • Berrocal, Carlos G.; Hornbostel, Karla; Geiker, Mette Rica; Löfgren, Ingemar; Lundgren, Karin; Bekas, Dimitrios G.. (2018) Electrical resistivity measurements in steel fibre reinforced cementitious materials. Cement & Concrete Composites
    Academic article

2017

  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2017) State-of-the-art report: Service life modelling, carbonation of concrete and corrosion in carbonated concrete. NTNU
    Report
  • Hornbostel, Karla; Elsener, Bernhard; Angst, Ueli Michael; Larsen, Claus K; Geiker, Mette Rica. (2017) Limitations of the use of concrete bulk resistivity as an indicator for the rate of chloride-induced macro-cell corrosion. Structural Concrete
    Academic article
  • Hornbostel, Karla; Geiker, Mette Rica. (2017) Influence of cracking on reinforcement corrosion. Norsk betongforening
    Academic chapter/article/Conference paper

2016

  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2016) Carbonation Characterization of Mortar with Portland Cement and Fly Ash, Comparison of Techniques. Nordic Concrete Research
    Academic article
  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2016) Investigation of the effect of partial replacement of Portland Cement by Fly Ash on carbonation using TGA and SEM-EDS. Rilem publications
    Academic chapter/article/Conference paper
  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2016) Karbonatisering av miljøvennlig betong. Byggeindustrien
    Popular scientific article
  • Hornbostel, Karla; Angst, Ueli Michael; Elsener, Bernhard; Larsen, Claus K; Geiker, Mette Rica. (2016) Influence of mortar resistivity on the rate-limiting step of chloride-induced macro-cell corrosion of reinforcing steel. Corrosion Science
    Academic article

2015

  • Hornbostel, Karla; Geiker, Mette Rica; Angst, Ueli Michael; Elsener, Bernhard; Larsen, Claus K. (2015) The role of concrete resistivity in chloride-induced macro-cell corrosion of reinforcement. Norwegian university of Science and Technology
    Doctoral dissertation
  • Hornbostel, Karla; Angst, Ueli Michael; Elsener, Bernhard; Larsen, Claus K; Geiker, Mette Rica. (2015) On the limitations of predicting the ohmic resistance in a macro-cell in mortar from bulk resistivity measurements. Cement and Concrete Research
    Academic article
  • Hornbostel, Karla; Geiker, Mette Rica; Larsen, Claus K. (2015) Betongens elektriske motstand og korrosjon. Byggeindustrien
    Article in business/trade/industry journal

2014

  • Geiker, Mette Rica; De Weerdt, Klaartje; Hornbostel, Karla; Kioumarsi, Mohammad Mahdi; Hendriks, Max ; Larsen, Claus K. (2014) Prediction of reinforcement corrosion in concrete structures.
    Academic chapter/article/Conference paper

2013

  • Geiker, Mette Rica; De Weerdt, Klaartje; Hornbostel, Karla; Kioumarsi, Mohammad Mahdi; Max, Hendriks. (2013) Levetid av armerte betongkonstruksjoner.
    Academic chapter/article/Conference paper
  • Mindess, Sidney; Hornbostel, Karla. (2013) Workshop Proceedings "Understanding the Fundamental Properties of Concrete" Celebrating Professor Erik J. Sellevold on his 75th birthday, 25th-26th April 2013, Trondheim, Norway. NTNU-trykk
    Academic anthology/Conference proceedings
  • Hornbostel, Karla; Larsen, Claus K; Geiker, Mette Rica. (2013) Relationship between concrete resistivity and corrosion rate - A literature review. Cement & Concrete Composites
    Academic literature review

2012

  • Justnes, Harald; Jacobsen, Stefan; Cepuritis, Rolands; Hornbostel, Karla; Peng, Ya. (2012) Proceedings ICDC 2012 International Congress on Durability of Concrete Trondheim Norway 18-21 June 2012. Norsk Betongforening
    Academic anthology/Conference proceedings
  • Hornbostel, Karla; Larsen, Claus Kenneth; Geiker, Mette Rica. (2012) Relationship between concrete resistivity and corrosion rate – a literature review.
    Academic chapter/article/Conference paper

2011

  • Hornbostel, Karla; Larsen, Claus K; Geiker, Mette Rica. (2011) The Electrical Resistivity of Concrete as Service Life Parameter.
    Academic chapter/article/Conference paper

Journal publications

  • Geiker, Mette Rica; Danner, Tobias Alexander; Antonsen, Roy Eivind; Polder, Rob; Hornbostel, Karla. (2025) Long-term phase changes in cathodically protected marine reinforced concrete bridge. Materials and Structures
    Academic article
  • Sharma, Suraksha; Hornbostel, Karla; Geiker, Mette Rica. (2024) Cathodic Protection of Marine Prestressed Concrete Bridges – Review of Case Studies. Nordic Concrete Research
    Academic literature review
  • Sharma, Suraksha; Osmolska, Magdalena Jadwiga; Hornbostel, Karla; Bathen, Lise; Novakova, Iveta; Geiker, Mette Rica. (2024) Repair Options for Corrosion-damaged Prestressed Concrete Bridges. Nordic Concrete Research
    Academic article
  • Menga, Antonia; Kanstad, Terje; Cantero, Daniel; Bathen, Lise; Hornbostel, Karla; Klausen, Anja Birgitta Estensen. (2022) Corrosion-induced damages and failures of posttensioned bridges: A literature review. Structural Concrete
    Academic article
  • Osmolska, Magdalena Jadwiga; Hornbostel, Karla; Kanstad, Terje; Hendriks, Max; Markeset, Gro. (2020) Inspection and assessment of corrosion in pretensioned concrete bridge girders exposed to coastal climate. Infrastructures
    Academic article
  • Belda Revert, Andres; Hornbostel, Karla; De Weerdt, Klaartje; Geiker, Mette Rica. (2019) Macrocell corrosion in carbonated Portland and Portland-fly ash concrete - Contribution and mechanism. Cement and Concrete Research
    Academic article
  • Paciorek, Magdalena Jadwiga; Kanstad, Terje; Hendriks, Max; Hornbostel, Karla; Markeset, Gro. (2019) Durability of pretensioned concrete girders in coastal climate bridges: Basis for better maintenance and future design. Structural Concrete
    Academic article
  • Berrocal, Carlos G.; Hornbostel, Karla; Geiker, Mette Rica; Löfgren, Ingemar; Lundgren, Karin; Bekas, Dimitrios G.. (2018) Electrical resistivity measurements in steel fibre reinforced cementitious materials. Cement & Concrete Composites
    Academic article
  • Hornbostel, Karla; Elsener, Bernhard; Angst, Ueli Michael; Larsen, Claus K; Geiker, Mette Rica. (2017) Limitations of the use of concrete bulk resistivity as an indicator for the rate of chloride-induced macro-cell corrosion. Structural Concrete
    Academic article
  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2016) Carbonation Characterization of Mortar with Portland Cement and Fly Ash, Comparison of Techniques. Nordic Concrete Research
    Academic article
  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2016) Karbonatisering av miljøvennlig betong. Byggeindustrien
    Popular scientific article
  • Hornbostel, Karla; Angst, Ueli Michael; Elsener, Bernhard; Larsen, Claus K; Geiker, Mette Rica. (2016) Influence of mortar resistivity on the rate-limiting step of chloride-induced macro-cell corrosion of reinforcing steel. Corrosion Science
    Academic article
  • Hornbostel, Karla; Angst, Ueli Michael; Elsener, Bernhard; Larsen, Claus K; Geiker, Mette Rica. (2015) On the limitations of predicting the ohmic resistance in a macro-cell in mortar from bulk resistivity measurements. Cement and Concrete Research
    Academic article
  • Hornbostel, Karla; Geiker, Mette Rica; Larsen, Claus K. (2015) Betongens elektriske motstand og korrosjon. Byggeindustrien
    Article in business/trade/industry journal
  • Hornbostel, Karla; Larsen, Claus K; Geiker, Mette Rica. (2013) Relationship between concrete resistivity and corrosion rate - A literature review. Cement & Concrete Composites
    Academic literature review

Books

  • Mindess, Sidney; Hornbostel, Karla. (2013) Workshop Proceedings "Understanding the Fundamental Properties of Concrete" Celebrating Professor Erik J. Sellevold on his 75th birthday, 25th-26th April 2013, Trondheim, Norway. NTNU-trykk
    Academic anthology/Conference proceedings
  • Justnes, Harald; Jacobsen, Stefan; Cepuritis, Rolands; Hornbostel, Karla; Peng, Ya. (2012) Proceedings ICDC 2012 International Congress on Durability of Concrete Trondheim Norway 18-21 June 2012. Norsk Betongforening
    Academic anthology/Conference proceedings

Part of book/report

  • Geiker, Mette Rica; Danner, Tobias; Hornbostel, Karla; Michel, Alexander. (2019) Durability aspects of cracks in concrete: field observations. Norsk betongforening
    Chapter
  • Hornbostel, Karla; Geiker, Mette Rica. (2017) Influence of cracking on reinforcement corrosion. Norsk betongforening
    Academic chapter/article/Conference paper
  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2016) Investigation of the effect of partial replacement of Portland Cement by Fly Ash on carbonation using TGA and SEM-EDS. Rilem publications
    Academic chapter/article/Conference paper
  • Geiker, Mette Rica; De Weerdt, Klaartje; Hornbostel, Karla; Kioumarsi, Mohammad Mahdi; Hendriks, Max ; Larsen, Claus K. (2014) Prediction of reinforcement corrosion in concrete structures.
    Academic chapter/article/Conference paper
  • Geiker, Mette Rica; De Weerdt, Klaartje; Hornbostel, Karla; Kioumarsi, Mohammad Mahdi; Max, Hendriks. (2013) Levetid av armerte betongkonstruksjoner.
    Academic chapter/article/Conference paper
  • Hornbostel, Karla; Larsen, Claus Kenneth; Geiker, Mette Rica. (2012) Relationship between concrete resistivity and corrosion rate – a literature review.
    Academic chapter/article/Conference paper
  • Hornbostel, Karla; Larsen, Claus K; Geiker, Mette Rica. (2011) The Electrical Resistivity of Concrete as Service Life Parameter.
    Academic chapter/article/Conference paper

Report

  • Revert, Andres Belda; De Weerdt, Klaartje; Hornbostel, Karla; Geiker, Mette Rica. (2017) State-of-the-art report: Service life modelling, carbonation of concrete and corrosion in carbonated concrete. NTNU
    Report
  • Hornbostel, Karla; Geiker, Mette Rica; Angst, Ueli Michael; Elsener, Bernhard; Larsen, Claus K. (2015) The role of concrete resistivity in chloride-induced macro-cell corrosion of reinforcement. Norwegian university of Science and Technology
    Doctoral dissertation

Teaching

Courses

  • TKT4235 - Concrete Technology 2

Outreach

2024

  • Lecture
    Bergsdal, Håvard; Scilipoti, Giovanni; Hornbostel, Karla. (2024) Classification of Concrete Bridges Based on Material Usage for Sustainable Decision-Making . Oslo Metropolitan University Net-Zero Future 2024 , Holmenkollen, Oslo 2024-06-19 - 2024-06-21
  • Academic lecture
    Hornbostel, Karla; Rodum, Eva; Antonsen, Roy; Helgestad, Stig Henning. (2024) From research to guidelines – results from field testing of mortars for cathodic protection. CONSEC 10th International Conference on CONcrete under SEvere Conditions – Environment and Loading 2024 , Chennai 2024-09-25 - 2024-09-27
  • Academic lecture
    Sharma, Suraksha; Hornbostel, Karla; Geiker, Mette Rica. (2024) Cathodic protection of marine prestressed concrete bridges –review of case studies . IIT Madras CONcrete under SEvere Conditions - Environment and Loading , Chennai 2024-09-25 - 2024-09-27
  • Academic lecture
    Sharma, Suraksha; Hornbostel, Karla; Øverli, Jan Arve; Geiker, Mette Rica. (2024) Effect of cathodic protection of ordinary reinforcement on damaged prestressed tendons, outline for a numerical study. University of Cape Town 7th International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2024) , Cape Town 2024-11-04 - 2024-11-06

2023

  • Academic lecture
    Sharma, Suraksha; Bjerk, Christoffer; Geiker, Mette Rica; Hornbostel, Karla; Osmolska, Magdalena Jadwiga; Danner, Tobias. (2023) Inspections and Investigations on Herøysund Bridge, 2023. UiT HERØY FoU: 2023 PLENARY MEETING , Narvik 2023-12-05 - 2023-12-06
  • Academic lecture
    Sharma, Suraksha; Osmolska, Magdalena Jadwiga; Novakova, Iveta; Geiker, Mette Rica; Hornbostel, Karla. (2023) Repair of corrosion-damaged prestressed concrete structures. UiT HERØY FoU: 2023 PLENARY MEETING , Narvik 2023-12-05 - 2023-12-06

2021

  • Lecture
    Menga, Antonia; Kanstad, Terje; Cantero, Daniel; Bathen, Lise; Hornbostel, Karla. (2021) Review of corrosion-induced failures of post-tensioned bridges. CACRCS DAYS 2021 Capacity Assessment of Corroded Reinforced Concrete Structures: from Research to Daily Engineering Evaluation 2021-11-30 - 2021-12-03

2020

  • Academic lecture
    Danner, Tobias; Hornbostel, Karla; Geiker, Mette Rica. (2020) Self-healing and Chloride Ingress in Cracked Cathodically Protected Concrete Exposed to Marine Environment for 33 years. TU Delft The 4th International RILEM conference Microstructure Related Durability of Cementitious Composites - Webinar 2020-10-12 - 2020-10-13

2019

  • Lecture
    Geiker, Mette Rica; Danner, Tobias; Hornbostel, Karla; Michel, Alexander. (2019) Durability aspects of cracks in concrete: field observations. Nordic Workshop: Design and construction of sustainable concrete structures: causes, calculation and consequences of cracks , Oslo 2019-10-16 - 2019-10-17

2017

  • Lecture
    Danner, Tobias; Hornbostel, Karla; De Weerdt, Klaartje; Geiker, Mette Rica. (2017) Ongoing Investigations, E39 WP. 7.1.1 - Test Methods, Lab and Field Investigations. NTNU/Kværner DACS - Durable Advanced Concrete Solutions , Trondheim/Fornebu 2017-06-20 - 2017-06-20

2016

  • Academic lecture
    Thoresen, Ann-Marie; Hornbostel, Karla; Geiker, Mette Rica. (2016) Frequency dependency of concrete resistance measurements. Proceedings Concrete Solutions 2016-06-20 - 2016-06-22
  • Academic lecture
    Hornbostel, Karla; Angst, Ueli Michael; Elsener, Bernhard; Larsen, Claus K; Geiker, Mette Rica. (2016) Correlation between mortar resistivity and the partial process (anodic, cathodic and ohmic) of macro-cell reinforcement corrosion. Proceedings fib Symposium 21 – 23 November 2016 , Cape Town 2016-11-21 - 2016-11-23

2013

  • Academic lecture
    Hornbostel, Karla; Geiker, Mette Rica; Larsen, Claus K. (2013) Application of segmented rebars for studying corrosion of steel in concrete. Proceedings Eurocorr 2013 , Estoril 2013-09-01 - 2013-09-05

NTNU – Norwegian University of Science and Technology

  • For employees
  • |
  • For students
  • |
  • Intranet
  • |
  • Blackboard

Studies

  • Master's programmes in English
  • For exchange students
  • PhD opportunities
  • Courses
  • Career development
  • Continuing education
  • Application process

News

  • NTNU News
  • Vacancies

About NTNU

  • About the university
  • Libraries
  • NTNU's strategy
  • Research excellence
  • Strategic research areas
  • Organizational chart

Contact

  • Contact NTNU
  • Employees
  • Find experts
  • Press contacts
  • Researcher support
  • Maps

NTNU in three cities

  • NTNU in Gjøvik
  • NTNU in Trondheim
  • NTNU in Ålesund

About this website

  • Use of cookies
  • Accessibility statement
  • Privacy policy
  • Editorial responsibility
Facebook Instagram Linkedin Snapchat Tiktok Youtube
Sign In
NTNU logo