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Author: Rajesh Chaube Publisher: CRC Press ISBN: 1482272164 Category : Architecture Languages : en Pages : 325
Book Description
Proposing a simplified but intergrated scenario of concrete life cycle simulation method, this book examines and explains the vast amount of experimental observations related to hardening concrete using a common set of physical laws.
Author: Rajesh Chaube Publisher: CRC Press ISBN: 1482272164 Category : Architecture Languages : en Pages : 325
Book Description
Proposing a simplified but intergrated scenario of concrete life cycle simulation method, this book examines and explains the vast amount of experimental observations related to hardening concrete using a common set of physical laws.
Author: Koichi Maekawa Publisher: CRC Press ISBN: 0203927206 Category : Technology & Engineering Languages : en Pages : 670
Book Description
Increases in computer power have now enabled engineers to combine materials science with structural mechanics in the design and the assessment of concrete structures. The techniques developed have become especially useful for the performance assessment of such structures under coupled mechanistic and environmental actions. This allows effective management of infrastructure over a much longer life cycle, thus satisfying the requirements for durability and sustainability. This ground-breaking new book draws on the fields of materials and structural mechanics in an integrated way to address the questions of management and maintenance. It proposes a realistic way of simulating both constituent materials and structural responses under external loading and under ambient conditions. Where the research literature discusses component or element technology related to performance assessment, this book uniquely covers the subject at the level of the whole system including soil foundation, showing engineers how to model changes in concrete structures over time and how to use this for decision making in infrastructure maintenance and asset management.
Author: Nenad Bicanic Publisher: CRC Press ISBN: 0203848330 Category : Technology & Engineering Languages : en Pages : 836
Book Description
Since 1984 the EURO-C conference series (Split 1984, Zell am See 1990, Innsbruck 1994, Badgastein 1998, St Johann im Pongau 2003, Mayrhofen 2006, Schladming 2010) has provided a forum for academic discussion of the latest theoretical, algorithmic and modelling developments associated with computational simulations of concrete and concrete structure
Author: FIB – International Federation for Structural Concrete Publisher: FIB - International Federation for Structural Concrete ISBN: 2883940312 Category : Technology & Engineering Languages : en Pages : 57
Author: fib Fédération internationale du béton Publisher: fib Fédération internationale du béton ISBN: 2883940827 Category : Technology & Engineering Languages : en Pages : 134
Book Description
High Strength/High Performance Concrete (HSC/HPC) continues to be the object of particular interest and extensive research, and its use in construction is increasing continuously. fib Bulletin 42 summarises the available information on the material behaviour of HSC/HPC, and develops a set of code-type constitutive relations as an extension of CEB-FIP Model Code 1990. Literature on experimental data and international guidelines, standards and recommendations were reviewed, and already-existing constitutive relations and models were evaluated. In addition to a number of material laws chosen and adjusted for this report, some new constitutive relations were developed based on the collected data. The criteria for the choice of the existing relations as well as the development of the new constitutive relations involved their simplicity and operationality (code-type mathematical formulations). Furthermore, they had to be physically sound and if possible describe the behaviour of both high-performance and normal strength concretes by a unique relation. Finally, compliance with the specifications given in the CEB-FIP Model Code 1990 was examined. This State-of-art report is intended for engineers and represents a summary of the relevant knowledge available to and possessed by the members of the Task Group at the time of its drafting.
Author: Zhengwu Jiang Publisher: Springer Nature ISBN: 9811963134 Category : Technology & Engineering Languages : en Pages : 441
Book Description
This book presents the features of manufactured sand (MS) and its application in concrete as the fine aggregate. It first introduces the production and technical properties of manufactured sand and demonstrates the properties of concrete, followed by the mix proportioning of concrete with manufactured sand. It also focuses on the applications of manufactured sand in several practical engineering projects using self-compacting concrete (SCC), rubble-filled SCC, and high-performance concrete with manufactured sand for special purposes. This book is useful and attractive to a wide readership in the field of materials science, civil engineering, and related fields.
Author: Publisher: Cuvillier Verlag ISBN: 3736918771 Category : Mathematics Languages : en Pages : 158
Book Description
Environmental impact on concrete parts of buildings results in a variety of unwanted chemical and chemically-induced mechanical changes. The bulk of these changes leads to damaging and destabilization of the concrete itself or of the reinforcement embedded in the concrete. One important destabilization factor is the drop in pH near the steel bars induced by carbonation of the alkaline constituents. This is caused by atmospheric carbon dioxide diffusing in the dry parts and reacting in the wet parts of the concrete pores. The phenomenon is considered as one of the major processes inducing corrosion in concrete. A particular feature of carbonation is the formation of macroscopic sharp reaction interfaces or thin reaction layers that progress into the unsaturated concrete-based materials. The deeper cause for the formation of these patterns is not quite clear, although the major chemical and physical reasons seem to be known. The main objective of this work is to understand the movement of internal reaction layers in order to be able to predict the carbonation penetration. We describe several relevant settings of the carbonation process by means of moving-reaction interface formulations. Non-local dynamic laws are used to model the advancement of the internal layers, which separate different modeling zones. We derive them via first principles for simple geometries using the physics and chemistry of the problem. The moving-boundary methodology essentially relies on these laws, which are usually descriptions of the velocity of the reaction front position. Specifically, the accuracy of the prediction is based on these supplementary relations and on a proper definition of the reaction front position. We investigate the competition between the non-linear carbonation kinetics effects, molecular diffusion and dissolution-precipitation mechanisms, which take place in the unsaturated concrete fabrics. Mathematically, the proposed models form coupled systems of semi-linear partial differential equations in two-phase moving domains. Non-linear transmission conditions of Rankine-Hugoniot type are imposed across the inner boundary that separates the carbonated regions from the uncarbonated ones. The movement of these regions is determined via non-local dynamics laws. Local and global existence, uniqueness and stability of the weak solution with respect to the initial data and parameters are shown. Useful upper and lower bounds, for instance on the velocity of the reaction front and on the time to complete the carbonation of a given part of a concrete sample, are obtained. Monitoring of such processes enables conclusions about the behavior of the moving-reaction front and can lead to a better prediction of penetration depths and of the corrosion initiation time. The moving-boundary methodology is illustrated numerically using experimental data extracted from the literature. The theoretical predictions compare well to the data from accelerated and outdoor tests. In particular, the agreement between the experimentally observed motion trajectory of the reaction front (i.e. penetration depth vs. time curves) and that computed via the proposed models is reasonable.
Author: Maria S. Konsta-Gdoutos Publisher: Springer Science & Business Media ISBN: 1402051042 Category : Technology & Engineering Languages : en Pages : 741
Book Description
This state-of-the-art volume covers the latest and future trends in measuring, monitoring and modeling the properties of cement based materials. The book contains 94 papers and presents the latest research work of renowned experts. It acts as a survey of the most up-to-date research in the field.
Author: Bernhard Middendorf Publisher: BoD – Books on Demand ISBN: 3737608288 Category : Technology & Engineering Languages : en Pages : 206
Book Description
With HiPerMat 5 on March 11-13, 2020 the 5th International Symposium on Ultra-High Performance Concrete and High Performance Construction Materials documents the actual state of development of application in the fields of: Material Science and Development, Composite Concrete Materials, Strength and Deformation behaviour of UHPC, Durability and Sustainability of UHPC, Design and Construction with UHPC, Structural Modelling and Optimisation, Lightweight Concrete Structures, High-Precision Manufacturing for Pre-Fabrication, Nanotechnology for Construction Materials, Innovative Applications, Smart Construction Materials, This volume contains the short versions (two pages) of all contributions that have been accepted for publication at HiPerMat 5.
Author: Rajesh Chaube
Author: Rajesh Chaube
Author: Koichi Maekawa
Author: Nenad Bicanic
Author: FIB – International Federation for Structural Concrete
Author: fib Fédération internationale du béton
Author: Zhengwu Jiang
Author: 
Author: Maria S. Konsta-Gdoutos
Author: Geert De Schutter
Author: Bernhard Middendorf