Materias
Referencia: Código 10930
Febrero de 2024 - Roberto J. Torrent, Rui D.. - Refª 10930
Roberto J. Torrent, Rui D. Neves, Kei-ichi Imamoto
Febrero de 2024 Páhinas: 578 Edición en tapa blanda
Código 10930 ISBN/EAN:9781032039701
Durability and service life design of concrete constructions have considerable socio-economic and environmental consequences, in which the permeability of concrete to aggressive intruders plays a vital role.
Concrete Permeability and Durability Performance provides deep insight into the permeability of concrete, moving from theory to practice, and presents over 20 real cases, such as Tokyo’s Museum of Western Art, Port of Miami Tunnel and Hong Kong-Zhuhai-Macao sea-link, including field tests in the Antarctic and Atacama Desert. It stresses the importance of site testing for a realistic durability assessment and details the "Torrent Method" for non-destructive measurement of air-permeability. It also delivers answers for some vexing questions:
Practitioners will find stimulating examples on how to predict the coming service life of new structures and the remaining life of existing structures, based on site testing of air-permeability and cover thickness. Researchers will value theoretical principles, testing methods, as well as how test results reflect the influence of concrete mix composition and processing.
1. Durability Performance of Concrete Structures
2. Permeability as Key Concrete Property
3. Theory: Concrete Microstructure and Transport of Matter
4. Test Methods to Measure Permeability of Concrete
5. ‘Torrent’ NDT Method for Coefficient of Air-Permeability
6. Effect of Key Technological Factors on Concrete Permeability
7. Why Durability Needs to be Assessed on Site?
8. Why Air-Permeability kT as Durability Indicator?
9. Service Life Assessment Based on Site Permeability Tests
10. The Role of Permeability on Explosive Spalling Under Fire
11. Real Cases of kT Test Applications on Site
12. Epilogue: The Future
Appendix A. Transport Test Methods Other Than Permeability
Appendix B. Model Standard for Measuring the Coefficient of Air-Permeability kT of Hardened Concrete
Dr. Roberto J. Torrent is a researcher, consultant and partner of Materials Advanced Services Ltd. He held positions at the National Institute of Industrial Technology and Portland Cement Institute (Argentina), as well as at Holcim Technology Ltd. (Switzerland). For thirty years he has been directly involved in durability testing of a large variety of concretes, both in the lab and on site. In the 90s he invented the Torrent NDT Method for measuring air-permeability. He is a RILEM Honorary Member.
Dr. Rui Neves was formerly a researcher at the National Laboratory for Civil Engineering (LNEC-Portugal). Currently he is Professor in the Structures and Geotechnics Division at Barreiro School of Technology, Polytechnic Institute of Setúbal, Portugal. His research efforts are mainly devoted to service life of reinforced concrete structures, with special emphasis on investigating and testing the permeability of concrete and rocks. He has carried out relevant consulting activity within the frame of concrete quality control, as well as inspection and appraisal of reinforced concrete structures.
Dr. Kei-ichi Imamoto is a graduate of Tokyo University of Science, Japan. He performed research at Tokyu Construction Co. Ltd. for nine years and is now Professor at Tokyo University of Science. He received the Young Researcher`s award from AIJ (Architectural Institute of Japan) in 2008, and prizes from Japan Society for Finishing Technology, Japan Concrete Institute and Suga Weathering foundation. He is very active in durability testing and service life assessment of concrete structures.
El diseño de la durabilidad y la vida útil de las construcciones de hormigón tiene considerables consecuencias socioeconómicas y medioambientales, en las que la permeabilidad del hormigón a los intrusos agresivos juega un papel vital.
Concrete Permeability and Durability Performance proporciona una visión profunda de la permeabilidad del hormigón, pasando de la teoría a la práctica, y presenta más de 20 casos reales, como el Museo de Arte Occidental de Tokio, el túnel del puerto de Miami y el enlace marítimo Hong Kong-Zhuhai-Macao. incluyendo pruebas de campo en la Antártida y el desierto de Atacama. Destaca la importancia de las pruebas in situ para una evaluación realista de la durabilidad y detalla el "Método Torrent" para la medición no destructiva de la permeabilidad al aire. También ofrece respuestas a algunas preguntas desconcertantes:
Los profesionales encontrarán ejemplos estimulantes sobre cómo predecir la próxima vida útil de nuevas estructuras y la vida útil restante de las estructuras existentes, basándose en pruebas in situ de permeabilidad al aire y espesor de la cubierta. Los investigadores valorarán los principios teóricos, los métodos de prueba y cómo los resultados de las pruebas reflejan la influencia de la composición y el procesamiento de la mezcla de concreto.
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