Calcium Aluminate Cements In Construction
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Calcium Aluminate Cements In Construction
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Author :
language : en
Publisher:
Release Date : 1997
Calcium Aluminate Cements In Construction written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Calcium aluminate categories.
Calcium Aluminate Cements
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Author : R.J. Mangabhai
language : en
Publisher: CRC Press
Release Date : 1990-07-05
Calcium Aluminate Cements written by R.J. Mangabhai and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-07-05 with Architecture categories.
The special properties of calcium aluminate cements make them of value in the construction, mining and refractory industries. This book brings together new international research information on their performance. As well as a state-of-the-art review, it includes reports on studies of: mineralogy, hydration and microstructure; rheology of pastes, mo
High Alumina Cement Concrete
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Author : Adam M. Neville
language : en
Publisher: Construction Press
Release Date : 1975
High Alumina Cement Concrete written by Adam M. Neville and has been published by Construction Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Alumina cement categories.
Factors Influencing Conversion And Volume Stability In Calcium Aluminate Cement Systems
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Author : Matthew Peter Adams
language : en
Publisher:
Release Date : 2015
Factors Influencing Conversion And Volume Stability In Calcium Aluminate Cement Systems written by Matthew Peter Adams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Alumina cement categories.
There is renewed interest in North America for the use of calcium aluminate cement (CAC) in infrastructure repair. The interest is driven by the specialty properties that make CAC the ideal candidate for particular applications. These include rapid strength gain, even at temperatures approaching 0°C, the ability to customize fresh property characteristics, high abrasion resistance, and resistance to chemical corrosion. Despite the advantages that CAC can bring to infrastructure repair projects, it is still not well understood within the North American construction community. There are three main topics that are limiting the use of CAC in the construction industry today: (1) a general lack-of-understanding within the construction industry of the conversion process that occurs in CAC systems; (2) there is no standardized accelerated test method for determining the minimum converted strength of CAC concrete; and (3) there are insufficient data on the long-term performance of concrete made with CAC, particularly as a repair material in transportation infrastructure. The work presented in this dissertation addresses these topics in an effort to provide information for and tools for construction professionals interested in using CAC in infrastructure repair situations. Conversion of the hydration products of concrete where CAC is the only binder is a well-known phenomenon which is accompanied by the formation of porosity and strength loss. Presented in this dissertation is an accelerated test method for determining the converted strength of CAC concrete that is convenient for use in the field. Robustness of this test method is examined. The effects of water to cement materials ratio (w/cm), curing temperature during initial 24 hours after casting, length of time prior to being placed in 50°C water bath, and aggregate source are examined. Results indicated that the test method is viable for use in the field, however writing of a standard based on this method will require careful consideration to take into account impact of temperature impact and aggregate source on time to conversion. Variability of the test method between four laboratories was also examined and showed that variability within CAC systems is higher when compared to ordinary portland cement (OPC) systems. Also presented is a study of the impact of replacing CAC with finely ground limestone (FGLS) at rates of 1%, 2%, 5%, and 10%. These results showed that replacement rates up to 5% can significantly improve the converted strength of CAC concrete without impacting rapid strength gain prior to conversion. A further examination of the impact of aggregate type on hydration, conversion, and strength development in CAC systems is also presented. Concrete systems made with nine different coarse aggregate sources and six different fine aggregate sources were cast. Carbonate limestone aggregate systems experienced delayed times to conversion and experienced less strength reduction due to conversion compared to siliceous limestone and siliceous river gravel aggregates. Further examination was done to study the pore solution chemistry, porosity, and microstructure of one carbonate limestone and one siliceous river gravel system. These results indicated that the siliceous river gravel system had lower ionic activity within its pore solution at all ages, and had significantly lower pH compared to the carbonate limestone system. Additionally, the siliceous river gravel system formed poor interfacial transition zones and had higher overall porosity compared to the carbonate limestone system. Theories explaining the differences between these two systems are presented. Finally, an examination of volume stability of CAC systems compared to calcium sulfoaluminate cement (CSA) and OPC systems is presented. Systems based on CAC experienced the highest levels of chemical, autogenous, and drying shrinkage. It was found that the rapid setting nature of CAC and CSA systems caused the pore structures to develop quickly resulting in an increase in the rate of early age shrinkage compared to the OPC system. Additionally, the impact of length of curing on drying shrinkage was examined for CSA and CAC systems. Results showed that length of curing did not impact overall drying shrinkage in either system.
Calcium Aluminate Cements
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Author : R.J. Mangabhai
language : en
Publisher: CRC Press
Release Date : 1990-07-05
Calcium Aluminate Cements written by R.J. Mangabhai and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-07-05 with Architecture categories.
The special properties of calcium aluminate cements make them of value in the construction, mining and refractory industries. This book brings together new international research information on their performance. As well as a state-of-the-art review, it includes reports on studies of: mineralogy, hydration and microstructure; rheology of pastes, mortars and grouts; admixtures and blended; systems durability of high alumina cement concrete.
Euro Cements
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Author : Ravindra Dhir
language : en
Publisher: CRC Press
Release Date : 1994-09-15
Euro Cements written by Ravindra Dhir and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-09-15 with Architecture categories.
This book reviews the implications of the new European standard for cements. It brings together contributions from leading experts involved with the drafting and implementation of ENV 197 and will facilitate discussion on its application. The book is derived from a seminar held at the University of Dundee in September 1994.
High Alumina Cement Concrete In Existing Building Superstructures
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Author : S. C. Bate
language : en
Publisher:
Release Date : 1992-12-01
High Alumina Cement Concrete In Existing Building Superstructures written by S. C. Bate and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-12-01 with categories.
Applied Mineralogy Of Cement Concrete
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Author : Maarten A.T.M. Broekmans
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2018-12-17
Applied Mineralogy Of Cement Concrete written by Maarten A.T.M. Broekmans and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-17 with Science categories.
Volume 74 of Reviews in Mineralogy and Geochemistry contains a selection of papers on the applied mineralogy of cement and concrete, by far the most popular modern building material by volume, with an annual production exceeding 9 billion cubic meters, and steadily growing. Not even all 'concrete' topics can be covered by a single volume, but an interesting assortment was finally obtained. The seven chapters deal with mineralogy and chemistry of (alumina) clinker production and hydration (Pöllmann), alternative raw clinkering materials to reduce CO2 emission (Justnes), assessment of clinker constituents by optical and electron microscopy (Stutzman), industrial assessment of raw materials, cement and concrete using X-ray methods in different applications (Meier et al.), in situ investigation of clinker and cement hydration based on quantitative crystallographic phase analysis (Aranda et al.), characterization and properties of supplementary cementitious materials (SCMs) to improve cement and concrete properties (Snellings et al.), and deleterious alkali-aggregate reaction (AAR) in concrete (Broekmans).
Portland Cement
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Author : G. C. Bye
language : en
Publisher: Thomas Telford
Release Date : 1999
Portland Cement written by G. C. Bye and has been published by Thomas Telford this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Portland cement categories.
Portland cement is one of the most traditional of construction materials. Rising costs of the energy required for its manufacture and the increasing interest in understanding the mechanisms of concrete deterioration, as well as the importance of optimising the use of Portland cement in high quality concrete, have continued to sustain interest in this important material. This second edition of this popular book provides an up-to-date introduction to the raw materials and manufacturing processes of Portland cement. It gives an introductory account of cement composition, manufacture, quality assessment, hydration and the resulting microstructure-physical property relationships, and some mechanisms of the chemical degradation of hardened cement paste. The book is primarily intended for students of materials sciences and graduates in pure science or engineering entering the cement or concrete industries. However anyone requiring a good clear introduction to this material will find this book provides helpful information.
Calcium Chloride In Construction And Related Fields
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Author : Donald Weston Bolme
language : en
Publisher:
Release Date : 1964
Calcium Chloride In Construction And Related Fields written by Donald Weston Bolme and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Building materials categories.