Download or read book Carbonate Additions to Cement written by Paul Klieger and published by ASTM International. This book was released on 1990 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbonate additions to cement written by Paul Klieger and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Carbonate Additions on Heat of Hydration and Sulfate Resistance of Portland Cements written by RD. Hooton and published by . This book was released on 1990 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Canadian Standard CSA CAN3-A5.M83 allows the addition of up to 5% carbonate additions for Type 10, normal Portland cement, and this allowance has recently been extended to Type 30, high-early strength cement. The possibility of extending the carbonate additions to the other cement types, including those for sulfate resistance and moderate heat of hydration, has been discussed by the A5 Committee, and some concrete test data have been presented. However, the initial results did not include testing for the effects on sulfate resisting or heat of hydration properties. Therefore, this study was initiated.
Download or read book Carbonate Cements written by Owen P. Bricker and published by Johns Hopkins University Press. This book was released on 1971 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbonate Cementation in Sandstones written by Sadoon Morad and published by Blackwell Publishing. This book was released on 1998-01-01 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbonate cements are very common and abundant in clastic sequences. They profoundly influence the quality of hydrocarbon reservoirs and supply important information on palaeoenvironments and the chemical composition and flow patterns of fluids in sedimentary basins. Despite this importance, their distribution patterns in time and space and their geochemical evolution are not yet deeply explored and elucidated. This Special Publication contains 21 review papers and case studies on carbonate cementation in clastic sequences written by invited specialists on the subject. These papers present a wide and deep coverage that enhance our knowledge about carbonate cementation in various clastic depositional environments, tectonic settings and burial histories. The book will be of special interest to researchers, petroleum geologists and teachers and students at the postgraduate level.
Download or read book A Practical Guide to Microstructural Analysis of Cementitious Materials written by Karen Scrivener and published by CRC Press. This book was released on 2018-10-09 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Practical Guide from Top-Level Industry Scientists As advanced teaching and training in the development of cementitious materials increase, the need has emerged for an up-to-date practical guide to the field suitable for graduate students and junior and general practitioners. Get the Best Use of Different Techniques and Interpretations of the Results This edited volume provides the cement science community with a state-of-the-art overview of analytical techniques used in cement chemistry to study the hydration and microstructure of cements. Each chapter focuses on a specific technique, not only describing the basic principles behind the technique, but also providing essential, practical details on its application to the study of cement hydration. Each chapter sets out present best practice, and draws attention to the limitations and potential experimental pitfalls of the technique. Databases that supply examples and that support the analysis and interpretation of the experimental results strengthen a very valuable ready reference. Utilizing the day-to-day experience of practical experts in the field, this book: Covers sample preparation issues Discusses commonly used techniques for identifying and quantifying the phases making up cementitious materials (X-ray diffraction and thermogravimetric analysis) Presents good practice oncalorimetry and chemical shrinkage methods for studying cement hydration kinetics Examines two different applications of nuclear magnetic resonance (solid state NMR and proton relaxometry) Takes a look at electron microscopy, the preeminent microstructural characterization technique for cementitious materials Explains how to use and interpret mercury intrusion porosimetry Details techniques for powder characterization of cementitious materials Outlines the practical application of phase diagrams for hydrated cements Avoid common pitfalls by using A Practical Guide to Microstructural Analysis of Cementitious Materials. A one-of-a-kind reference providing the do’s and don’ts of cement chemistry, the book presents the latest research and development of characterisation techniques for cementitious materials, and serves as an invaluable resource for practicing professionals specializing in cement and concrete materials and other areas of cement and concrete technology.
Download or read book Cementitious Materials written by Herbert Pöllmann and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-12-18 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aside from water the materials which are used by mankind in highest quantities arecementitious materials and concrete. This book shows how the quality of the technical product depends on mineral phases and their reactions during the hydration and strengthening process. Additives and admixtures infl uence the course of hydration and the properties. Options of reducing the CO2-production in cementitious materials are presented and numerous examples of unhydrous and hydrous phases and their formation conditions are discussed. This editorial work consists of four parts including cement composition and hydration, Special cement and binder mineral phases, Cementitious and binder materials, and Measurement and properties. Every part contains different contributions and covers a broad range within the area. Contents Part I: Cement composition and hydration Diffraction and crystallography applied to anhydrous cements Diffraction and crystallography applied to hydrating cements Synthesis of highly reactive pure cement phases Thermodynamic modelling of cement hydration: Portland cements – blended cements – calcium sulfoaluminate cements Part II: Special cement and binder mineral phases Role of hydrotalcite-type layered double hydroxides in delayed pozzolanic reactions and their bearing on mortar dating Setting control of CAC by substituted acetic acids and crystal structures of their calcium salts Crystallography and crystal chemistry of AFm phases related to cement chemistry Part III: Cementitious and binder materials Chemistry, design and application of hybrid alkali activated binders Binding materials based on calcium sulphates Magnesia building material (Sorel cement) – from basics to application New CO2-reduced cementitious systems Composition and properties of ternary binders Part IV: Measurement and properties Characterization of microstructural properties of Portland cements by analytical scanning electron microscopy Correlating XRD data with technological properties No cement production without refractories
Download or read book Carbon Dioxide Uptake During Concrete Life Cycle written by Björn Lagerblad and published by . This book was released on 2005 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbonation results when carbonate ions from dissolved carbon dioxide react with the Ca ions of the cement paste and precipitate calcium carbonate. By time all Ca-bearing cement hydrates will decompose and form calcite. The end product will apart from calcite be silica gels, metal hydroxides and clays. Carbon dioxide and water can be found in almost every environment and thus all concretes will be subjected to carbonation. The cement paste will in the course of time go back to the basic components in cement production. Therefore, the question is not if concrete and other cementitious products will carbonate, but how fast they will carbonate. In geological terns the cement paste turns into marly limestone and the concrete into marly agglomerate. Old Roman concrete structures are basically such a rock. Carbonation is a process from the surface, i.e. the amount of carbonated material is related to exposure time and surface. Surfaces in direct contact with carbon dioxide and water will carbonate rapidly but a shell of already carbonated concrete will slow down the carbonation of the interior. Thus to be able to calculate the CO2-uptake we must know the transport mechanism of carbon dioxide and carbonate ions through the already altered product. The process of passing a shell of already carbonated concrete is complex. The speed of carbonation is apart from the amount of CO2 in the environment also governed by the size and geometry of the porosity, the degree of water saturation, the type of cement/binder, the temperature, etc. Even concrete submerged in water or buried in soil will carbonate but at a slow speed due to biological degradation and the slowness of exchange reactions between water and the gases in the atmosphere. To be able to calculate CO2 uptake one must consider the microclimate at individual concrete surfaces, concrete qualities and cement/binder types in a time frame. Thus approximations are needed. In the general case assuming a similar environment and concrete quality the carbonation rate slows down with the square root of time. By choosing the most common types of concrete structures, estimating the exposed surfaces in different environments and concrete qualities it is possible to get a good estimate of the rate of carbon dioxide uptake. As a consequence of the rapidly decreasing rate of carbonation one can assume that most of the carbonation of concrete structures takes place during the first 50 years and after demolition as this will increase the surfaces dramatically. One must, however, also consider that the types of cement and quality of the concrete have changed and will change over time. Thus there will be a difference between how much is taken up today and how much that will be taken up in 50 years from now. Concrete is a fairly modern material and most concrete structures still remain but we can expect the amount of demolished concrete to increase in the future. A guess is that a 100-year perspective most concrete structures that exist today will probably be demolished and most of the carbonate rock calcinated during cement production will be back as a carbonate rock. To be able to calculate the carbonation rate some simplifications are needed. In this report concrete strength is used as a substitute for porosity and from literature data constants for different environmental classes are selected. The influence of different cements and additions is handled by correction factors.
Download or read book The Use of Limestone in Portland Cement written by Rachel Jean Detwiler and published by . This book was released on 1996 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Workability and Quality Control of Concrete written by G H Tattersall and published by CRC Press. This book was released on 2003-09-02 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fresh concrete must be produced with the properties required for its intended applications, for example, it must be workable enough to flow into formwork, and to be compacted. This book deals with the measurement of the flow properties of fresh concrete and the factors which affect its workability. Aspects of concrete mixes and control of manufacture to produce optimum properties which relate to workability are covered.
Download or read book Calcined Clays for Sustainable Concrete written by Shashank Bishnoi and published by Springer Nature. This book was released on 2020-04-13 with total page 845 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the proceedings of the Third International Conference on Calcined Clays for Sustainable Concrete held in New Delhi, India in October 2019. The papers cover topics related to geology of clay, hydration and performance of blended systems with calcined clays, alkali activated binders, and economic and environmental impacts of the use of calcined clays in cement-based materials. The book presents research on influence of processing on reactivity of calcined clays, influence of clay mineralogy on reactivity, geology of clay deposits, and the environmental impact of use of calcined clays in cement and concrete and field applications of calcined clay in concrete. Apart from giving an overview of the progress of research during the last two years, this work also covers the state-of-the art on the practical aspects of production and use of calcined clays in construction. The contents of this volume will prove useful to researchers and graduate students working in the areas of cement chemistry, cement production, and concrete design.
Download or read book Sustainable Construction Materials written by K. S. Satyanarayanan and published by Springer Nature. This book was released on 2021-12-14 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the International Conference on Advances in Construction Materials and Management (ACMM 2021). It discusses the recent innovations towards construction management, building technology and new materials in practice in civil engineering. Various topics covered include architecture and urban planning, smart materials and structures, GIS in construction application, transportation materials and engineering, geotechnical applications in construction, energy and sustainability, green building technologies and materials and construction management. The book will be useful for beginners, researchers and professionals working in the area of civil engineering.
Download or read book Carbonate Cements written by Nahum Schneidermann and published by American Society of Civil Engineers. This book was released on 1985 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Portland Cement written by Richard Kidder Meade and published by . This book was released on 1906 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Self Compacting Concrete Materials Properties and Applications written by Rafat Siddique and published by Woodhead Publishing. This book was released on 2019-11-19 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Carbonate Cementation in Sandstones written by Sadoon Morad and published by John Wiley & Sons. This book was released on 2009-04-15 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbonate cements are very common and abundant in clastic sequences. They profoundly influence the quality of hydrocarbon reservoirs and supply important information on palaeoenvironments and the chemical composition and flow patterns of fluids in sedimentary basins. Despite this importance, their distribution patterns in time and space and their geochemical evolution are not yet deeply explored and elucidated. This Special Publication contains 21 review papers and case studies on carbonate cementation in clastic sequences written by invited specialists on the subject. These papers present a wide and deep coverage that enhance our knowledge about carbonate cementation in various clastic depositional environments, tectonic settings and burial histories. The book will be of special interest to researchers, petroleum geologists and teachers and students at the postgraduate level. If you are a member of the International Association of Sedimentologists, for purchasing details, please see: http://www.iasnet.org/publications/details.asp?code=SP26
Download or read book Synthesis and Characterization of Carbon Sequestering Calcium Carbonate Cement written by Mohammad Jobaer Uddin and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The cement industry is the second-largest manufacturing emitter of CO2, and the manufacture and placement of concrete accounts for 7-8% of anthropogenic CO2 emissions. There is increasing pressure on the cement industry to develop a sustainable cement to support rapid global urban development without the associated emissions of cement production. The calcination reaction required to manufacture Portland cement is the prime source of emissions, so eliminating the release of CO2 liberated during calcination of limestone provides an excellent opportunity to produce a more sustainable cement. Calcium carbonate (CaCO3) cement is a novel alternative, which can eliminate the calcination process or close the loop on CO2 emissions during cement production. In this study, a vateritic CaCO3 is synthesized from the double decomposition reaction of equimolar CaCl2.2H2O and Na2CO3 at room temperature using a continuous stirred-tank reactor (CSTR). The morphology of precipitated vaterite displays nano-aggregated micron-sized spherical particles. The dissolution of vaterite and recrystallization to a stable polymorph (calcite and/or aragonite) provides the necessary cementing reaction. Mg2+ and/or Sr2+ ions control the transformation kinetics and the abundance of the stable phase. However, the low concentration of Mg2+ (0.05 M) was insufficient to inhibit calcite formation and promote aragonite formation. Aragonite containing hardened cement exhibits 10 times higher compressive strength than a calcite containing one. The hardened cement exhibits a pH neutral microporous structure with relatively low compressive strength; the highest compressive strength was measured at approximately 1.11 MPa. By capitalizing on the unique properties of CaCO3 cement, it can be developed as an ideal cement to support environmental restoration projects, such as oyster reef restoration along the Intracoastal Waterway in Florida, where the neutral pH of CaCO3 cement and its chemical composition provide it with enhanced properties for oyster recruitment compared to Portland cement.
