Ultra-High Performance Concrete and Nanotechnology in Construction
Proceedings of Hipermat 2012 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials Kassel, March 7–9, 2012
Author: M. Schmidt, E. Fehling, C. Glotzbach, S. Fröhlich, S. Piotrowski | Size: 79.08 MB | Format:PDF | Quality:Original preprint | Publisher: Kassel University Press GmbH | Year: 2012 | pages: 1136 | ISBN: 9783862192656
Ultra-High Performance Concrete (UHPC), one of the recent breakthroughs in concrete technology, impresses us with its high durability and a compressive strength comparable to that of steel. It permits the design of sustainable concrete structures such as wide-span bridges, filigree shells and high-rise towers and allows for spectacular architectural designs.
In 2004 and 2008, two International Symposia on UHPC took place at the University of Kassel, organized by the Department of Structural Materials and Construction Chemistry and the Department of Structural Engineering. Since then, the set of knowledge about the Ultra-High Performance Concrete has been substantially widened and its practical application has rapidly increased worldwide. New researchers and users of UHPC have joined the community and broadened the scope of its potential.
This conference as well has substantially grown since 2008. In 2012, about 130 speakers presented their impressions, research, and practical experience. It also attracted the attention of many international standardization bodies.
Even though the material is already highly developed, it is still possible to increase its potential even further using recent advancements in nanotechnology and colloidal chemistry. Nowadays, the reactions of binders can be studied at the nanoscale, synthetic nanoparticles of various oxides can significantly improve microstructure and reaction potential. This knowledge gives rise to many new possibilities that allow developing impregnable ceramics or multifunctional materials. They can, for example, carry agents for environmental protection, provide additional self-healing potential, and act as part of heating or cooling measures. As nanotechnology provides many new and auspicious approaches to improve the performance of construction materials and to open up new applications, the 3rd International Symposium on UHPC extended its focus towards nano-optimized construction materials and its recent advancements.
This additional aspect led us to establish the new conference name HiPerMat, derived from High Performance Construction Materials.
This volume thus contains more than 120 contributions from many research disciplines that are influenced by High Performance Materials and UHPC in particular: material sciences, structural engineering, environmental engineering, nanotechnology, chemistry, architecture, codification, and economy. A design adequate to the materials and to the construction of durable and sustainable high performance structures receives special attention.
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Author: The Concrete Society | Size: 19.56 MB | Format:PDF | Quality:Original preprint | Publisher: The Concrete Society | Year: 2010 | pages: 99 | ISBN: 9781904482611
Concrete petrography is an effective technique for investigating the quality, workmanship, durability and defects of concrete. It involves the microscopic examination and description of hardened concrete in the laboratory, using specialised petrological techniques that have been adapted from those used for the study of rocks. One of the benefits of petrography is that the careful examination of a few well-chosen and representative samples can reduce or remove the need for other more expensive test procedures. Many kinds of materials, such as those resulting from the hydration of cement or from deleterious reactions and internal features can be identified by petrography. The proportions of the original ingredients of the concrete can be estimated to a good order of accuracy. The technique can also be used to assess the effectiveness of some concrete repair techniques; an example is the degree of crack filling by resin injection.
Investigations involving concrete petrography are commissioned by a wide range of clients who usually know little about the procedures involved and often find the petrographer's reports difficult to interpret. The published literature regarding concrete petrography proves equally difficult to understand as practically all of it is intended to be read by petrographers. W i th this in mind, The Concrete Society formed a working party with the intention of providing this introductory guide to concrete petrography that is aimed squarely at non-specialists. Whether you are commissioning, conducting or interpreting concrete petrography this report provides a clear and concise account of the state of practice. It was written by working party members comprising concrete petrography experts and engineers experienced in the investigation of concrete structures. This report draws on a wide range of case study examples and explains all of the latest techniques and interpretative guidance. Colour pictures of microscopical features are included that illustrate typical concrete compositions, unusual ingredients, workmanship defects and a wide range of types of damage and deleterious reactions. A glossary of terms is included for easy reference.
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The main purpose of this book is to provide a simple and accessible introduction to the mixed finite element method as a fundamental tool to numerically solve a wide class of boundary value problems arising in physics and engineering sciences. The book is based on material that was taught in corresponding undergraduate and graduate courses at the Universidad de Concepcion, Concepcion, Chile, during the last 7 years. As compared with several other classical books in the subject, the main features of the present one have to do, on one hand, with an attempt of presenting and explaining most of the details in the proofs and in the different applications. In particular several results and aspects of the corresponding analysis that are usually available only in papers or proceedings are included here.
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Guidelines for Open Pit Slope Design is a comprehensive account of the open pit slope design process. Created as an outcome of the Large Open Pit (LOP) project, an international research and technology transfer project on the stability of rock slopes in open pit mines, this book provides an up-to-date compendium of knowledge of the slope design processes that should be followed and the tools that are available to aid slope design practitioners.
This book links innovative mining geomechanics research into the strength of closely jointed rock masses with the most recent advances in numerical modelling, creating more effective ways for predicting the reliability of rock slopes in open pit mines. It sets out the key elements of slope design, the required levels of effort and the acceptance criteria that are needed to satisfy best practice with respect to pit slope investigation, design, implementation and performance monitoring.
This book will assist open pit mine slope design practitioners, including engineering geologists, geotechnical engineers, mining engineers and civil engineers and mine managers, in meeting stakeholder requirements for pit slopes that are stable, in regards to safety, ore recovery and financial return, for the required life of the mine.
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"Investigation the effect of new sheet piling on behavior of highly-corroded steel sheet pile structures"
Authors:
[ Fatemeh Abdi ] - MSc., Civil Engineering Department, Shahrood University of Technology and Short Address
[ Farshid Alaee ] - Assistant Professor, Civil Engineering Department, Shahrood University of Technology
[ Reza Naderi ] - Assistant Professor, Civil Engineering Department, Shahrood University of Technology
Author: Bernard Amadei, Ove Stephansson | Size: 14 MB | Format:PDF | Quality:Unspecified | Publisher: Chapman & Hall | Year: 1997 | Pages: 490 | ISBN: 9780412447006
Unlike man made materials such as concrete, steel, etc, natural materials such as rocks and soils are subject to natural (virgin) stresses called in-situ stresses. Knowledge of the in-situ stress field is very important in many problems dealing with rocks in civil, mining and petroleum engineering as well as in geology and geophysics. The last 30 years have seen a major advance in our knowledge of in-situ stresses. A large body of data on the state of stress in the near surface of the Earth's crust (upper 4-5 km of the crust) is now available. New theories have been proposed regarding their origin and various techniques have been developed to measure in-situ stresses.
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Author: James M. Kelly | Size: 19 MB | Format:PDF | Quality:Scanner | Year: 1997 | pages: 245
Base isolation technology offers a cost-effective and reliable strategy for mitigating seismic damage to structures. The effectiveness of this new technology has been demonstrated not only in laboratory research, but also in the actual response of base-isolated buildings during earthquakes. Increasingly, new and existing buildings in earthquake-prone regions throughout the world are making use of this innovative strategy. In this expanded and updated edition, the design methods and guidelines associated with seismic isolation are detailed. The main focus of the book is on isolation systems that use a damped natural rubber. Topics covered include coupled lateral-torsional response, the behavior of multilayer bearings under compression and bending, and the buckling behavior of elastomeric bearings. Also featured is a section covering the recent changes in building code requirements
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This text book provides the theoretical background of rock fracture mechanics and displacement discontinuity methods used for the modelling of geomechanical problems. The computer program FRACOD is used to analyse the fracture problems, assessing fracture initiation and propagation in tension (Mode I), shear (Mode II) and mixed mode I and II of solid intact or jointed geomaterials. The book also presents the fundamentals of thermo-mechanical coupling and hydro-mechanical coupling. Formulations of multiple regional mechanical, thermal and hydraulic functions, which allow analyses of fracture mechanics problems for structures made of brittle, rock-like materials, are provided. In addition, instructive examples of code verification and applications are presented.
Additional material: The 2-D version of the FRACOD program, a manual on the program and a wealth of verification examples of classical problems in physics, mechanics and hydromechanics are available at Springer website. A large number of applications related to civil, mining, petroleum and environmental engineering are also included.
- The first textbook available on modelling of rock fracture propagation
- Introduces readers to the fundamentals of rock fracturing
- Uses a modern style of teaching with theory, mathematical modelling and applications in one package
- The basic version of the FRACOD software, manual, verification examples and applications are available as additional material
- The FRACOD program and manual enable the readers to solve fracture propagation problems on their own
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Can anyone please upload this book. Thanks in advance.
Title: Civil Surveying Sample Exams for the California Special Civil Engineer Examination
Author: Peter R. Boniface Ph.D. PLS
Edition: 2nd ed
ISBN-10: 1591261007
Amazon Link for more information:
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Involving several areas of geological engineering, geotechnical engineering and tunnel engineering, this book describes the soft soil deformation characteristics and dynamic responses induced by subway vibration load. Based on field monitoring and laboratory testing data, with both comprehensive micro-and macroanalysis, the authors present dynamic characteristics and deformation settlement of saturated soft clay surrounding subway tunnels using dynamic and static methodology. Mechanism of deformation, failure in microstructure of soft clay soil, dynamic response, macro deformation and settlement are all discussed and analyzed thoroughly and systematically. Some of the research findings in this book have been widely applied by large subway companies and will have broader application prospects in future. All the above make this book a valuable reference not only for technical engineers working in subway design or construction but also for advanced graduate students.
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