Download or read book Additives admixtures characterisation techniques written by Harald Justnes and published by . This book was released on 1997 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 10th International Congress on the Chemistry of Cement Gothenburg Sweden June 2 6 1997 Additives admixtures characterisation techniques written by Harald Justnes and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book PRO 23 International RILEM Conference on Early Age Cracking in Cementitious Systems EAC 01 written by Arnon Bentur and published by RILEM Publications. This book was released on 2002 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterisation Techniques for Civil Engineers written by Bahurudeen A and published by CRC Press. This book was released on 2023-12-08 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary aim of this book is to provide an understanding of the sophisticated, modern characterisation techniques in the domain of civil engineering. It systematically covers physical, chemical, mineralogical and microstructural characterisation, which is imperative to evaluate the construction materials and their performance. It describes tools such as rheometers, thermogravimetric analysers, scanning electron microscopes, X-ray diffractometers and other miscellaneous methods. In each chapter, a detailed scientific background, instrumentation details, working principles, and applications of a specific technique are provided. Features: • Describes rheological and microstructural characterisation testing. • Discusses sophisticated characterisation techniques for construction materials. • Explains the detailed procedure of sample preparation and testing. • Provides detailed descriptions of different parts of the instruments and their purposes. • Includes questions and answers at the end of each chapter. This book is aimed at graduate students and researchers in civil engineering.

Download or read book Heritage weathering and conservation 2006 written by Rafael Fort and published by Editorial CSIC - CSIC Press. This book was released on 2006 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conservation of cultural heritage is a major commitment for all countries around the world, since it is a complex task and a matter of great responsibility. Amongst other sectors of society, science has a contribution to make to heritage preservation. This book is the result of the international conference Heritage, Weathering and Conservation (HWC2006), held in Madrid, Spain, in 2006. It brought together prominent scientists and professionals from a variety of disciplines who have been active in the field and have raised the profile of heritage preservation. The main aspects addressed at this conference were those related to the causes of decay of cultural materials (stone, ceramics, metals, paintings, mortars, timber, adobes, etc); the characterization of their properties and the assessment of analytical techniques for their study, with a focus on non-destructive techniques. Many of the studies stress the importance of salt crystallization, atmospheric pollution and biodeterioration and relate these specific factors to decay. A variety of case studies are included, as well as an examination of policies and management. This book will be useful to professionals and scientists working in a variety of fields related to heritage: geologists, geographers, chemists, physicists, biologists, architects, engineers, restorers, historians, archaeologists, policy makers and the general public.

Download or read book Report 28 Characterisation of Old Mortars with Respect to their Repair State of the Art Report of RILEM Technical Committee 167 COM written by C. Groot and published by RILEM Publications. This book was released on 2007 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization Techniques for Civil Engineers written by Bahurudeen A. and published by . This book was released on 2023-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The primary aim of the proposed book is to provides understanding of the sophisticated modern characterisation techniques in domain of civil engineering. It systematically covers physical, chemical, mineralogical and microstructural characterisation imperative to evaluate the construction materials and their performance. It describes tools such as Rheometers, Thermogravimetric analyser, Scanning electron microscope, X-ray diffractometer and other miscellaneous methods. In every chapter, a detailed scientific background, instrumentation details, working principle, application of the specific technique is provided. Features: Describes rheology characterization together with other common and hands-on microstructure characterization testing. Discusses sophisticated characterisation techniques for construction materials. Reviews detailed procedure of sample preparation and testing. Provides detailed description of different parts of the instrument with their purposes. Includes questions and answers at the end of each chapter. This book is aimed at graduate students and researchers in civil engineering"--

Download or read book Concrete Admixtures Handbook written by V.S. Ramachandran and published by William Andrew. This book was released on 1996-12-31 with total page 1183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the first edition ten years ago, significant developments have occurred in the use of admixtures in concrete. Eight new chapters and a full update of the preceding ten chapters bring this book up to date; reflecting the relative advances made in the science and technology of different groups of admixtures. The increased role and development of admixtures in concrete technology is evidenced by a number of conferences, publications, and novel admixtures available in the market place. These developments in the field caused the modification of many chapters in the first edition in order to reflect the advances. Although individual chapters refer to standards and specifications of admixtures, those only interested in the standards or techniques used in investigating admixtures will find the second chapter (Research Technologies, Standards, and Specifications) useful. Admixtures are not as inert as may be presumed. They may chemically interact with the constituents of concrete and affect the properties of the fresh and hardened concrete and its durability. The third chapter deals with these aspects. It was important to devote a chapter to recent attempts in developing new admixtures.

Download or read book Salt Deterioration of Historic Mortars in Tropical Climate Analysis and Characterisation written by Isabela Wilfred Mtani and published by kassel university press GmbH. This book was released on 2016-01-01 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contribution of this study to the general body of knowledge is in providing an understanding of the thermodynamic behaviour of soluble salt mixtures in historic buildings located in the tropical marine zone of Tanzania. This tropical zone is found in the eastern part of the country along the Indian Ocean coast. This research is geared towards informing the general public, most of whom believe that salt crystallisation is the main cause of historic buildings deteriorating. This belief emanates from the understanding that historic buildings in a marine environment are highly susceptible to salt crystallisation, more so because they tend to receive daily oceanic spray which contains salt. The problem is aggravated by the encroachment of the ocean on these buildings. Salt crystallisation on these structures is further complicated by air pollution owing to rapid urbanisation in these areas. It is worth noting that salt crystallisation is an extremely complex process and its effect depend on many variables including climate. Ten historic buildings involved in this study are located in three different areas of the country. Eight historic buildings are located in the tropical climate 1 - 200 m from the Indian Ocean, and two historic buildings are located in inland Tanzania 190 km and 589 km from the ocean. These two historic buildings experience a modified tropical climate and semi-arid climate. The criteria for selecting the buildings considered variations and the extent of salt deterioration in different parts of the country.

The main goal of the study was to embark on a detailed analysis of the salt deterioration on Tanzanian historic buildings which has not hitherto been fully investigated and to provide a sustainable solution to the problem through climate control. This solution is needed, since there is no approved conservation programme and as a result of existing government budgetary constraints, very little conservation research has been done on any site or monuments except those registered under UNESCO. The research results of this project contributes to solving the existing monument research gap, thereby stimulating the initiation of a sustainable restoration programme, together with the provision of the much needed government research tools. This research provides information on the type of construction and building materials used during the construction of these buildings. Such information is vital in salt analysis and in futurerestoration, conservation and consolidation of these buildings, which provides a substantial income to the country through the tourist industry. There are also other factors like the preservation of the history and culture of the country and job creation.

The abundance of chloride (Cl-) ions of magnesium (Mg2+), sodium (Na+), and potasium (K+) in these buildings as identified by this study explains the survival of the historic buildings in the tropical marine areas of Tanzania. These ions can lead to the formation of halite (NaCl), sylvite (KCl), bischofite (MgCl2•6H2O), ammonium chloride (NH4Cl) and antarcticite (CaCl2•6H2O), depending on their presence and quantity in the walls of historic buildings. The results of ECOS/RUNSALT program indicate that salt is not the major problem because the major ions hitherto detected form salts like halite and sylvite, are mostly in liquid form. Under a high evaporation rate these salts easily migrate to the surface of the building’s walls whereby a supersaturated solution is formed leading to surface crystallisation. The surface crystallisation is evident in salt profile analysis by photospectrometry, whereby the quantity of soluble salt ions decreases with depth. The detachment of protective rendering, the peeling off of paint and efflorescence in the investigated historic buildings in tropical marine areas of Tanzania is evidence of surface crystallisation. Mirabilite (Na2SO4•10H2O), gypsum (CaSO4•2H2O) and epsomite (MgSO4•7H2O) can crystallize in tropical areas. The SO42- and NO3- ions detected in these buildings are so scanty as not to cause ionic interactions needed for the formation of destructive sodium sulphate (Na2SO4) except in the Cooperation Building where SO42- is as high as 1.8 % w/w. However, this is not a trivial problem and should not be ignored, especially because of the destructive nature of Na2SO4 and the increase in air pollution.

Laboratory simulation of the three environmental conditions using two salts, Na2SO4 and NaCl, provided similar results on the exposure of lime mortar samples in 50% Relative Humidity (RH) and 20oC; 75% RH and 28oC and 85% RH and 28oC. Samples exposed to 85% RH and 28oC in a controlled environment showed enormous deterioration due to crystallisation of Na2SO4.

Subsequently, NaCl is the major salt and is always in the solution. Reducing this salt is necessary to avoid associated damage like the formation of microorganisms. Thehygroscopic nature of NaCl retards the drying of materials, hence keeping the walls moist all the time, creating a conducive environment for biocolonisation. Routine desalination is necessary to keep the wall dry. In future, Na2SO4 and magnesium sulphate (MgSO4) will be a problem. Therefore, the RH within a building located in a tropical marine environment should be protected from frequent RH variations to prevent the damage associated with sulphate salts, that is only if the current trend of air pollution (i.e. an increase of 6% (WHO, 2014)) is mantained or increased.

Download or read book Production Methods and Workability of Concrete written by P.J.M. Bartos and published by CRC Press. This book was released on 2004-06-02 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical production of ordinary and special, high performance concretes and their behaviour and properties when fresh are the main themes of this book. It derives from the International RILEM Conference held in Paisley, Scotland in June 1996, and represents the culmination of the work of two RILEM Technical Committees (145 WSM Workability of Special Mixes, and 150 ECM Efficiency of Concrete Mixers). Very significant advances have been made recently in the development of concrete with outstanding properties. Such advances in research must be matched by progress in the technology of concrete production. This book focuses on production methods and on workability and handling, two fundamental and closely linked stages of the concrete construction process. It has a strongly practical emphasis, with many contributions showing how to build effectively using the many high performance concretes which have progressed from research into construction in recent years. The main themes covered are: production mixers and mixing processes; production methods; sprayed and very dry precasting mixes; fibre reinforced concrete; flowing and superfluid mixes; rheology; test methods; mix design and models; special cements and concretes.

Download or read book Fly Ash Silica Fume Slag and Natural Pozzolans in Concrete written by and published by . This book was released on 1998 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computational Methods and Experiments in Materials Characterization III written by C. A. Brebbia and published by WIT Press. This book was released on 2007 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until recently, engineering materials could be characterized successfully using relatively simple testing procedures. As materials technology advances, interest is growing in materials possessing complex meso-, micro- and nano-structures, which to a large extent determine their physical properties and behaviour. The purposes of materials modelling are many: optimization, investigation of failure, simulation of production processes, to name but a few. Modelling and characterisation are closely intertwined, increasingly so as the complexity of the material increases. Characterisation, in essence, is the connection between the abstract material model and the real-world behaviour of the material in question. Characterisation of complex materials therefore may require a combination of experimental techniques and computation. This book publishes papers presented at the Third International Conference on Computational Methods and Experiments in Material Characterisation.Topics covered include: Composites; Ceramics; Alloys; Cements and Cement Based Materials; Biomaterials; Thin Films and Coatings; Advanced Materials; Imaging Analysis; Thermal Analysis; New Methods; Surface Chemistry, Nano Indentation; Continuum Methods; Particle Models; Damage Mechanics; Innovative Techniques; Stochastic Methods.

Download or read book Accelerated Pavement Testing written by Athar Saeed and published by Transportation Research Board. This book was released on 2003 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 2nd fib Congress in Naples Italy Vol2 written by FIB – International Federation for Structural Concrete and published by FIB - Féd. Int. du Béton. This book was released on 2006-06-01 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground Characterization and Foundations written by C. N. V. Satyanarayana Reddy and published by Springer Nature. This book was released on 2021-09-26 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the select proceedings of the Indian Geotechnical Conference (IGC) 2020. The contents focus on recent developments in geotechnical engineering for a sustainable tomorrow. The book covers the topics related to traditional and latest methods in characterisation of ground at construction sites, recent technological developments/ advances in design of shallow and deep foundations in different subsoil conditions.

Download or read book Second RILEM International Conference on Concrete and Digital Fabrication written by Freek P. Bos and published by Springer Nature. This book was released on 2020-07-08 with total page 1209 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Handbook of Statistical Genetics written by David J. Balding and published by John Wiley & Sons. This book was released on 2008-06-10 with total page 1616 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook for Statistical Genetics is widely regarded as the reference work in the field. However, the field has developed considerably over the past three years. In particular the modeling of genetic networks has advanced considerably via the evolution of microarray analysis. As a consequence the 3rd edition of the handbook contains a much expanded section on Network Modeling, including 5 new chapters covering metabolic networks, graphical modeling and inference and simulation of pedigrees and genealogies. Other chapters new to the 3rd edition include Human Population Genetics, Genome-wide Association Studies, Family-based Association Studies, Pharmacogenetics, Epigenetics, Ethic and Insurance. As with the second Edition, the Handbook includes a glossary of terms, acronyms and abbreviations, and features extensive cross-referencing between the chapters, tying the different areas together. With heavy use of up-to-date examples, real-life case studies and references to web-based resources, this continues to be must-have reference in a vital area of research. Edited by the leading international authorities in the field. David Balding - Department of Epidemiology & Public Health, Imperial College An advisor for our Probability & Statistics series, Professor Balding is also a previous Wiley author, having written Weight-of-Evidence for Forensic DNA Profiles, as well as having edited the two previous editions of HSG. With over 20 years teaching experience, he’s also had dozens of articles published in numerous international journals. Martin Bishop – Head of the Bioinformatics Division at the HGMP Resource Centre As well as the first two editions of HSG, Dr Bishop has edited a number of introductory books on the application of informatics to molecular biology and genetics. He is the Associate Editor of the journal Bioinformatics and Managing Editor of Briefings in Bioinformatics. Chris Cannings – Division of Genomic Medicine, University of Sheffield With over 40 years teaching in the area, Professor Cannings has published over 100 papers and is on the editorial board of many related journals. Co-editor of the two previous editions of HSG, he also authored a book on this topic.