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Understanding the Rheology of Concrete

Understanding the Rheology of Concrete
A Book

by N. Roussel

  • Publisher : Woodhead Publishing
  • Release : 2016-06
  • Pages : 384
  • ISBN : 9780081016459
  • Language : En, Es, Fr & De
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Estimating, modelling, controlling and monitoring the flow of concrete is a vital part of the construction process, as the properties of concrete before it has set can have a significant impact on performance. This book provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, the impact of mix design, and casting. Part one begins with two introductory chapters dealing with the rheology and rheometry of complex fluids, followed by chapters that examine specific measurement and testing techniques for concrete. The focus of part two is the impact of mix design on the rheological behaviour of concrete, looking at additives including superplasticizers and viscosity agents. Finally, chapters in part three cover topics related to casting, such as thixotropy and formwork pressure. With its distinguished editor and expert team of contributors, Understanding the rheology of concrete is an essential reference for researchers, materials specifiers, architects and designers in any section of the construction industry that makes use of concrete, and will also benefit graduate and undergraduate students of civil engineering, materials and construction. Provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, casting and the impact of mix design The estimating, modelling, controlling and monitoring of concrete flow is comprehensively discussed Chapters examine specific measurement and testing techniques for concrete, the impact of mix design on the rheological behaviour of concrete, particle packaging and viscosity-enhancing admixtures

Understanding the Rheology of Concrete

Understanding the Rheology of Concrete
A Book

by N Roussel

  • Publisher : Elsevier
  • Release : 2011-12-20
  • Pages : 384
  • ISBN : 0857095285
  • Language : En, Es, Fr & De
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Estimating, modelling, controlling and monitoring the flow of concrete is a vital part of the construction process, as the properties of concrete before it has set can have a significant impact on performance. This book provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, the impact of mix design, and casting. Part one begins with two introductory chapters dealing with the rheology and rheometry of complex fluids, followed by chapters that examine specific measurement and testing techniques for concrete. The focus of part two is the impact of mix design on the rheological behaviour of concrete, looking at additives including superplasticizers and viscosity agents. Finally, chapters in part three cover topics related to casting, such as thixotropy and formwork pressure. With its distinguished editor and expert team of contributors, Understanding the rheology of concrete is an essential reference for researchers, materials specifiers, architects and designers in any section of the construction industry that makes use of concrete, and will also benefit graduate and undergraduate students of civil engineering, materials and construction. Provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, casting and the impact of mix design The estimating, modelling, controlling and monitoring of concrete flow is comprehensively discussed Chapters examine specific measurement and testing techniques for concrete, the impact of mix design on the rheological behaviour of concrete, particle packaging and viscosity-enhancing admixtures

Developments in the Formulation and Reinforcement of Concrete

Developments in the Formulation and Reinforcement of Concrete
A Book

by Sidney Mindess

  • Publisher : Woodhead Publishing
  • Release : 2019-06-26
  • Pages : 442
  • ISBN : 0128189282
  • Language : En, Es, Fr & De
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Developments in the Formulation and Reinforcement of Concrete, Second Edition, presents the latest developments on topics covered in the first edition. In addition, it includes new chapters on supplementary cementitious materials, mass concrete, the sustainably of concrete, service life prediction, limestone cements, the corrosion of steel in concrete, alkali-aggregate reactions, and concrete as a multiscale material. The book's chapters introduce the reader to some of the most important issues facing today's concrete industry. With its distinguished editor and international team of contributors, users will find this to be a must-have reference for civil and structural engineers. Summarizes a wealth of recent research on structural concrete, including material microstructure, concrete types, and variation and construction techniques Emphasizes concrete mixture design and applications in civil and structural engineering Reviews modern concrete materials and novel construction systems, such as the precast industry and structures requiring high-performance concrete

Flow Behavior and Microstructure of Cement-based Materials

Flow Behavior and Microstructure of Cement-based Materials
A Book

by Dongyeop Han

  • Publisher : Unknown Publisher
  • Release : 2014
  • Pages : 460
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The flow behavior of concrete is highly impacted by the inherent structure of the paste matrix, which in turn is governed by the aggregation mechanisms within the paste matrix. Further, the mixing process is an essential process of cement-based materials preparation that influences the rheology of cement paste via the microstructure formation of cement paste. Due to the difficulty of measuring the rheology of concrete with aggregates, cement paste is used to represent the rheology of concrete. Based on literature in this area of research [1], it is known that a faster mixing speed is appropriate to simulate the condition of the cement paste inside of the concrete mixture during mixing. In 2011, the American Society for Testing and Materials (ASTM) published a new standard for high-shear mixing of hydraulic cement paste (ASTM C1738, “Standard Practice for High-shear Mixing of Hydraulic Cement Pastes,” 2011) to provide guidance for preparation of cement paste samples for rheological studies in hydraulic cement systems. Despite the improvements gained in the implementation of several hydraulic cement paste standards for mixing throughout the years, the relationship between the rheology and fresh state microstructure of cement paste with different mixing intensities—especially those with a very high mixing intensity range is not known yet. Overall, there is a lack of fundamental knowledge about the influence of the applied mixing forces on the internal structure of cement paste, the role of the microstructure on the rheological behavior, and microstructure formation mechanisms on rheological behavior. The objectives of this research are to (1) evaluate the influences of sample preparation on the rheology of cement paste, (2) analyze the influence of the mixing intensity on rheological behaviors, (3) characterize the microstructure of fresh state cement paste (4) understand the mechanisms of determining cement agglomerate size and identify the relationship between the microstructure and rheology of fresh state cement paste. In order to accomplish these objectives, rheology studies on cement pastes mixed with different mixing intensities were conducted. Based on the rheology studies with a high mixing intensity, it was found that increasing the mixing intensity does not always result in a reduction in the rheological properties. Rather interesting results can occur when a high-range water reducer is incorporated, and possible explanations for this unexpected behavior are presented. To prove the reasons for this unexpected result, two hypotheses were proposed: (1) If cement paste has increased ionic concentration under the high mixing intensity conditions, then the cement flocs are aggregated (flocculated), and thus these aggregated cement flocs likely contribute to the increased apparent viscosity. (2) If the polycrboxylate-based high-range water reducer (HRWR) produces unexpected air bubbles under the high mixing intensity conditions, then those air bubbles will have an influence on increasing apparent viscosity. To prove these hypotheses, a series of experiments were conducted, and based on the results of these experiments microstructural formation mechanisms were suggested to explain the unexpected flocculation under the high mixing intensity, and the numerical relationship was investigated between the microstructure and rheology properties of fresh state cement paste. In this research, the relationship between microstructural change and rheological behaviors of fresh state cement paste were investigated and a better understanding of the mechanisms of microstructural formation with various mixing intensity conditions for cement-based materials was obtained.

The Rheology of Fresh Concrete

The Rheology of Fresh Concrete
A Book

by G. H. Tattersall,P. F. G. Banfill

  • Publisher : Pitman Advanced Publishing Program
  • Release : 1983
  • Pages : 356
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Rheology and Processing of Construction Materials

Rheology and Processing of Construction Materials
RheoCon2 & SCC9

by Viktor Mechtcherine,Kamal Khayat,Egor Secrieru

  • Publisher : Springer Nature
  • Release : 2019-08-24
  • Pages : 663
  • ISBN : 3030225666
  • Language : En, Es, Fr & De
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This book gathers the peer-reviewed contributions presented at two parallel, closely interconnected events on advanced construction materials and processes, namely the 2nd International RILEM Conference on Rheology and Processing of Construction Materials (RheoCon2) and the 9th International RILEM Symposium on Self-Compacting Concrete (SCC9), held in Dresden, Germany on 8-11 September 2019. The papers discuss various aspects of research on the development, testing, and applications of cement-based and other building materials together with their specific rheological properties. Furthermore, the papers cover the latest findings in the fast-growing field of self-compacting concrete, addressing topics including components’ properties and characterization; chemical admixtures, effect of binders (incl. geopolymers, calcined clay, etc.) and mixture design; laboratory and in-situ rheological testing; constitutive models and flow modelling; numerical simulations; mixing, processing and casting processes; and additive manufacturing / 3D-printing. Also presenting case studies, the book is of interest to researchers, graduate students, and industry specialists, such as material suppliers, consultants and construction experts.

Second RILEM International Conference on Concrete and Digital Fabrication

Second RILEM International Conference on Concrete and Digital Fabrication
Digital Concrete 2020

by Freek P. Bos,Sandra S. Lucas,Rob J.M. Wolfs,Theo A.M. Salet

  • Publisher : Springer Nature
  • Release : 2020-07-08
  • Pages : 1187
  • ISBN : 3030499162
  • Language : En, Es, Fr & De
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This book gathers peer-reviewed contributions presented at the 2nd RILEM International Conference on Concrete and Digital Fabrication (Digital Concrete), held online and hosted by the Eindhoven University of Technology, the Netherlands from 6-9 July 2020. Focusing on additive and automated manufacturing technologies for the fabrication of cementitious construction materials, such as 3D concrete printing, powder bed printing, and shotcrete 3D printing, the papers highlight the latest findings in this fast-growing field, addressing topics like mixture design, admixtures, rheology and fresh-state behavior, alternative materials, microstructure, cold joints & interfaces, mechanical performance, reinforcement, structural engineering, durability and sustainability, automation and industrialization.

Rheology of Fresh Cement and Concrete

Rheology of Fresh Cement and Concrete
Proceedings of an International Conference, Liverpool, 1990

by P.F.G. Banfill

  • Publisher : CRC Press
  • Release : 1990-09-27
  • Pages : 373
  • ISBN : 9780419153603
  • Language : En, Es, Fr & De
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This book brings together new research information on the flow behaviour of cementitious materials from the UK, France, Italy, Germany, Poland, Finland, USSR, USA and Japan, presented at the International Conference organised by the British Society of Rheology in March 1990.

Rheology of Cement Paste and Concrete

Rheology of Cement Paste and Concrete
A Book

by L. Struble,R. Szecsy,W-G Lei,G-K Sun

  • Publisher : Unknown Publisher
  • Release : 1998
  • Pages : 9
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Much has been learned in recent years about the rheology of cement paste and how it relates to microstructure. Such progress has been made possible in part by the use of specialized instruments for measuring dynamic rheological properties, developed to characterize viscoelastic materials. This paper reviews recent studies of cement paste in our laboratory in which dynamic rheological properties are used to follow the effects of cement hydration. Not as much has been learned about the rheology of concrete. Measuring flow behavior of concrete presents interesting challenges; concrete rheometers have been developed, but they are not widely used. It appears likely that concrete rheology is controlled by rheology of its paste, although such links have not yet been directly established. This paper also presents preliminary results from our laboratory on concrete flow behavior. Concrete rheology provides important information about its workability, and rheological parameters have important advantages over slump when characterizing workability.

Self-Compacting Concrete: Materials, Properties and Applications

Self-Compacting Concrete: Materials, Properties and Applications
A Book

by Rafat Siddique

  • Publisher : Woodhead Publishing
  • Release : 2019-11-19
  • Pages : 411
  • ISBN : 012817370X
  • Language : En, Es, Fr & De
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Self-Compacting Concrete: Materials, Properties and Applications presents the latest research on various aspects of self-compacting concrete, including test methods, rheology, strength and durability properties, SCC properties at elevated temperature, SC manufacturing with the use of SCMs, recycled aggregates and industrial by-products. Written by an international group of contributors who are closely associated with the development of self-compacting concrete, the book explores the main differences between SCC and normal concrete in terms of raw materials, fresh properties and hardened properties. Other topics discussed include the structure and practical applications of fiber reinforced SCC. Researchers and experienced engineers will find this reference to be a systematic source to SCC with its accounting of the latest breakthroughs in the field and discussions of SCC constructability, structural integrity, improved flows into complex forms, and superior strength and durability. Offers a systematic and comprehensive source of information on the latest developments in SCC technology Includes mix design procedures, tests standards, rheology, strength and durability properties Explores the properties and practical applications of SCC

Advances in Experimental and Computational Rheology, Volume II

Advances in Experimental and Computational Rheology, Volume II
A Book

by Maria Teresa Cidade,João Miguel Nóbrega

  • Publisher : MDPI
  • Release : 2020-11-27
  • Pages : 192
  • ISBN : 3039435655
  • Language : En, Es, Fr & De
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Rheology, defined as the science of deformation and flow of matter, is a multidisciplinary scientific field, covering both fundamental and applied approaches. The study of rheology includes both experimental and computational methods, which are not mutually exclusive. Its practical importance embraces many processes, from daily life, like preparing mayonnaise or spreading an ointment or shampooing, to industrial processes like polymer processing and oil extraction, among several others. Practical applications include also formulations and product development. Following a successful first volume, we are now launching this second volume to continue to present the latest advances in the fields of experimental and computational rheology applied to the most diverse classes of materials (foods, cosmetics, pharmaceuticals, polymers and biopolymers, multiphasic systems, and composites) and processes.

New Materials in Civil Engineering

New Materials in Civil Engineering
A Book

by Pijush Samui,Dookie Kim,Nagesh R. Iyer,Sandeep Chaudhary

  • Publisher : Butterworth-Heinemann
  • Release : 2020-07-07
  • Pages : 1104
  • ISBN : 0128190752
  • Language : En, Es, Fr & De
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New Materials in Civil Engineering provides engineers and scientists with the tools and methods needed to meet the challenge of designing and constructing more resilient and sustainable infrastructures. This book is a valuable guide to the properties, selection criteria, products, applications, lifecycle and recyclability of advanced materials. It presents an A-to-Z approach to all types of materials, highlighting their key performance properties, principal characteristics and applications. Traditional materials covered include concrete, soil, steel, timber, fly ash, geosynthetic, fiber-reinforced concrete, smart materials, carbon fiber and reinforced polymers. In addition, the book covers nanotechnology and biotechnology in the development of new materials. Covers a variety of materials, including fly ash, geosynthetic, fiber-reinforced concrete, smart materials, carbon fiber reinforced polymer and waste materials Provides a “one-stop resource of information for the latest materials and practical applications Includes a variety of different use case studies

Report on Measurements of Workability and Rheology of Fresh Concrete

Report on Measurements of Workability and Rheology of Fresh Concrete
A Book

by ACI Committee 238,American Concrete Institute

  • Publisher : Unknown Publisher
  • Release : 2008-01-01
  • Pages : 70
  • ISBN : 9780870312687
  • Language : En, Es, Fr & De
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This report provides a comprehensive view of workability of fresh concrete and a critical review of the tests available to measure workability and rheological performance of fresh concrete. The report discusses the factors affecting the performance of fresh concrete and provides a better understanding of the issues related to the design of workable concrete, from no flow (zero-slump) to flow like a liquid (self-consolidating concrete).

Advances in Additive Manufacturing, Modeling Systems and 3D Prototyping

Advances in Additive Manufacturing, Modeling Systems and 3D Prototyping
Proceedings of the AHFE 2019 International Conference on Additive Manufacturing, Modeling Systems and 3D Prototyping, July 24-28, 2019, Washington D.C., USA

by Massimo Di Nicolantonio,Emilio Rossi,Thomas Alexander

  • Publisher : Springer
  • Release : 2019-06-04
  • Pages : 671
  • ISBN : 303020216X
  • Language : En, Es, Fr & De
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This book discusses the latest advances in digital modeling systems (DMSs) and additive manufacturing (AM) technologies. It covers applications of networked technologies, ubiquitous computing, new materials and hybrid production systems, discussing how they are changing the processes of conception, modeling and production of products and systems of product. The book emphasizes ergonomic and sustainability issues, as well as timely topics such as DMSs and AM in Industry 4.0, DMSs and AM in developing countries, DMSs and AM in extreme environments, thus highlighting future trends and promising scenarios for further developing those technologies. Based on the AHFE 2019 International Conference on Additive Manufacturing, Modeling Systems and 3D Prototyping, held on July 24-28, 2019, in Washington D.C., USA, the book is intended as source of inspiration for researchers, engineers and stakeholders, and to foster interdisciplinary and international collaborations between them.

Gulf Conference on Sustainable Built Environment

Gulf Conference on Sustainable Built Environment
A Book

by Ali Bumajdad,Walid Bouhamra,Osamah A. Alsayegh,Hasan A. Kamal,Salem Falah Alhajraf

  • Publisher : Springer Nature
  • Release : 2020-04-07
  • Pages : 538
  • ISBN : 3030397343
  • Language : En, Es, Fr & De
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This volume brings together outstanding contributions to the Gulf Conference on Sustainable Built Environment, held at the Marina Hotel Kuwait, near Kuwait City. The Proceedings collects 29 papers on a range of engineering and materials challenges, and best practices, addressing development of new sustainable building materials, performance improvement of structures and tall buildings, developing monitoring and analysis techniques and frameworks for existing infrastructure under environmental effects, development of long-term sustainability plans for building stock, and development of energy efficient buildings in the gulf region. The Conference was organized by the Kuwait Foundation for the Advancement of Sciences (KFAS), the Massachusetts Institute of Technology, the Kuwait Institute for Scientific Research, and Kuwait University.

Alkenes

Alkenes
A Book

by Reza Davarnejad,Baharak Sajjadi

  • Publisher : BoD – Books on Demand
  • Release : 2018-02-07
  • Pages : 180
  • ISBN : 9535137662
  • Language : En, Es, Fr & De
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In organic chemistry, Alkenes, also known as olefins, are the unsaturated hydrocarbons with the general formula of CnH2n that contains one or more carbon-carbon double bonds in their chemical structures (RC=CR'). The presence of this double bond allows alkenes to react in ways that alkanes cannot. Hence, alkenes find many diverse applications in industry. These compounds are widely used as initial materials in the synthesis of alcohols, plastics, lacquers, detergents, and fuels. The current book includes all knowledge and novel data according to the structure of alkenes, their novel synthesis methods, and their applications. In addition, manufacture, properties, and the use of polyalkenes are the other important topics that are covered in this book. These data are collected by the efforts and contributions of many authors and scientists from all over the globe, and all of us are ready to further improve the contents of this book as per the readers' comments.

Determination of Rheology of Self-Consolidating Concrete Using the 4C-Rheometer and How to Make Use of the Results

Determination of Rheology of Self-Consolidating Concrete Using the 4C-Rheometer and How to Make Use of the Results
A Book

by Lars N. Thrane,Claus Pade,Claus V. Nielsen

  • Publisher : Unknown Publisher
  • Release : 2010
  • Pages : 10
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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One of the major obstacles to a more wide spread use of self-consolidating concrete is to obtain further understanding of the importance of rheology on the final concrete quality. Existing test methods does not support the concept of two independent rheological properties in a very comprehensive manner. For this purpose, the so-called 4C-RheometerDanish Technological Institute, Taastrup, Denmark. has been developed in Denmark, combining the traditional slump flow test with digital video analysis to obtain the slump flow versus time curve from which the yield stress and plastic viscosity are determined. Based on numerous on-site tests in Denmark performed with the 4C-Rheometer, ranges of preferred rheological parameters have been identified for different types of castings. This paper presents the concept of testing and the correlation of obtained rheological parameters to the BML viscometer and discusses the selection of rheological properties for some typical horizontal and vertical castings.

Handbook of Recycled Concrete and Demolition Waste

Handbook of Recycled Concrete and Demolition Waste
A Book

by Fernando Pacheco-Torgal,Vivian Tam,João Labrincha,Yining Ding,Jorge de Brito

  • Publisher : Elsevier
  • Release : 2013-09-30
  • Pages : 672
  • ISBN : 0857096907
  • Language : En, Es, Fr & De
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The civil engineering sector accounts for a significant percentage of global material and energy consumption and is a major contributor of waste material. The ability to recycle and reuse concrete and demolition waste is critical to reducing environmental impacts in meeting national, regional and global environmental targets. Handbook of recycled concrete and demolition waste summarises key recent research in achieving these goals. Part one considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, the types and optimal location of waste recycling plants and the economics of managing construction and demolition waste. Part two reviews key steps in handling construction and demolition waste. It begins with a comparison between conventional demolition and construction techniques before going on to discuss the preparation, refinement and quality control of concrete aggregates produced from waste. It concludes by assessing the mechanical properties, strength and durability of concrete made using recycled aggregates. Part three includes examples of the use of recycled aggregates in applications such as roads, pavements, high-performance concrete and alkali-activated or geopolymer cements. Finally, the book discusses environmental and safety issues such as the removal of gypsum, asbestos and alkali-silica reaction (ASR) concrete, as well as life-cycle analysis of concrete with recycled aggregates. Handbook of recycled concrete and demolition waste is a standard reference for all those involved in the civil engineering sector, as well as academic researchers in the field. Summarises key recent research in recycling and reusing concrete and demolition waste to reduce environmental impacts and meet national, regional and global environmental targets Considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, the types and optimal location of waste recycling plants Reviews key steps in handling construction and demolition waste

Physical Properties of Concrete and Concrete Constituents

Physical Properties of Concrete and Concrete Constituents
A Book

by Jean-Pierre Ollivier,Jean-Michel Toorenti,Myriam Carcasses

  • Publisher : John Wiley & Sons
  • Release : 2012-12-17
  • Pages : 335
  • ISBN : 111856295X
  • Language : En, Es, Fr & De
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Understanding the rheological properties of fresh concrete, the hydration phenomenon of cement responsible for structuration, the relationship between the characteristics of the porous solid obtained and its mechanical performances or resistance to the aggressive penetration requires a complex knowledge of the physicochemistry of reactive porous materials. The development of simple formulation rules therefore requires the assimilation of this knowledge and a good command of the properties of these materials. The purpose of this book is to provide the mix designer with useful knowledge on granular materials and porous materials, which will enable the innovative design of concrete. Topics covered include the characterization of granular materials, the concepts of porosity and specific surface area, and the transport properties (diffusion and permeation) of concrete. Some of these topics are already covered in other general books dedicated to granular or porous materials. The objective here is to bring them together in one book by adapting them for use by concrete specialists. Applications in the form of exercises are offered at the end of each chapter to enable readers to assimilate the theoretical knowledge and to apply such knowledge to concrete problems encountered in civil engineering. Contents 1. Description of Granular Materials, Definitions. 2. Granulometry. 3. Specific Surface Area of Materials. 4. Voids in Granular Materials and the Arrangement of Grains. 5. Voids in Concrete. 6. The Fundamentals of Diffusion. 7. Permeability.

PRO 33: 3rd International RILEM Symposium on Self-Compacting Concrete

PRO 33: 3rd International RILEM Symposium on Self-Compacting Concrete
A Book

by Ólafur H. Wallevik,Indriði Níelsson

  • Publisher : RILEM Publications
  • Release : 2003
  • Pages : 1028
  • ISBN : 9782912143426
  • Language : En, Es, Fr & De
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