Download or read book Sulfate Resistance of Mortars Made Using Portland Cement and Blends of Portland Cement and Pozzolan Or Slag written by G. Sam Wong and published by . This book was released on 1988 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mortar bars were made from 23 Type I, 9 Type II, 2 Type V, 15 Type IP, 5 Type IS, and blends of Type I with slag and with various pozzolans including one silica fume. The bars were stored in a 5-percent sodium sulfate solution and monitored for changes in length and in resonant frequency. The length changes of the bars indicated tht silica fume and a natural pozzolan showed impressive improvement of the blends over the use of a nonsulfate-resistant cement by itself, while blends made using slag, and other pozzolans in the amounts studied, in some cases showed only slightly improved resistance and in other cases no improvements. Keywords: Blended cements, Fundamental frequency, Length change, Mortar bar, Portland pozzolan, Sulfate resistance. (jes).
Download or read book Factors Affecting Sulfate Resistance of Mortars written by and published by . This book was released on 1980 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability of a mortar made using portland cement, fine aggregate, and water to resist attack by sulfates is affected by the proportions of the mortar (water-cement ratio and cement content), by the maturity, by the amount of tricalcium aluminate in the portland cement, by the presence of tricalcium aluminate-sodium oxide solid solutions with different structures and reactivities, and by the composition, reactivity, and amount of pozzolan used together with the portland cement. Cements investigated included: portland cements of Types (I-III), and V meeting ASTM C 150; blended cements including Type IP's meeting ASTM C 595 that were made from the same clinkers as the Type I's; and Type I's blended with pozzolans including fly ashes produced by burning bituminous, subbitumous, and lignitic coals, calcined natural volcanic glass high in silica, and silica fume. Silica fume forms glassy microspheres that may contain over 90% SiO2; it is a by-product of the production of silicon metal. Some of the fly ashes produced from subbituminous and lignitic coals replacing 30% by volume of cements increased the expansion of mortars containing the blends when stored in sulfate solutions. This behavior reflects SiO2 below 50%, Al2O3 16 to 26%, and CaO 5 to 30%. Al2O3 and CaO in the fly ash glass are readily available to combine with sulfate to form ettringite. With cement of lower C3A content, some of the subbituminous and lignitic fly ash blends improved the sulfate resistance of mortars, except when SiO2 in the fly ashes was 38% or less.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Blended Cements written by Geoffrey Frohnsdorff and published by ASTM International. This book was released on 1986 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Portland Blast furnace Slag Cements written by Bryant Mather and published by . This book was released on 1965 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Development of ASTM Method C 1012 with Recommended Acceptance Limits for Sulfate Resistance of Hydraulic Cements written by T. Patzias and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the adoption of the new standard ASTM Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution (C 1012-89), it is now possible to evaluate the performance of mortars made with portland cements, blended cements, and blends of portland cement with pozzolans or slags in producing a sulfate-resisting cement mortar.
Download or read book Kirk Othmer Concise Encyclopedia of Chemical Technology 2 Volume Set written by Kirk-Othmer and published by John Wiley & Sons. This book was released on 2007-07-16 with total page 2762 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an easily-accessible two-volume encyclopedia summarizing all the articles in the main volumes Kirk-Othmer Encyclopedia of Chemical Technology, Fifth Edition organized alphabetically. Written by prominent scholars from industry, academia, and research institutions, the Encyclopedia presents a wide scope of articles on chemical substances, properties, manufacturing, and uses; on industrial processes, unit operations in chemical engineering; and on fundamentals and scientific subjects related to the field.
Download or read book Bibliography on Sulfate Resistance of Portland Cements Concretes and Mortars written by Dalton Giles Miller and published by . This book was released on 1952 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lea s Chemistry of Cement and Concrete written by Peter Hewlett and published by Butterworth-Heinemann. This book was released on 2019-02-15 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lea's Chemistry of Cement and Concrete, Fifth Edition, examines the suitability and durability of different types of cements and concretes, their manufacturing techniques and the role that aggregates and additives play in achieving concrete's full potential of delivering a high-quality, long-lasting, competitive and sustainable product. Provides a 60% revision over the fourth edition last published in 2004 Includes updated chapters that represent the latest technological advances in the industry, including, but not exclusive to the production of low-energy cements, cement admixtures and concrete aggregates Presents expanded coverage of the suitability and durability of materials aggregates and additives
Download or read book ACI Manual of Concrete Inspection written by and published by American Concrete Institute. This book was released on 2008 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual is intended to guide, assist, and instruct concrete inspectors and others engaged in concrete construction and testing, including field engineers, construction superintendents, supervisors, laboratory and field technicians, and workers. Designers may also find the manual to be a valuable reference by using the information to better adapt their designs to the realities of field construction. Because of the diverse possible uses of the manual and the varied backgrounds of the readers, it includes the reasoning behind the technical instructions. The field of concrete construction has expanded dramatically over the years to reflect the many advances that have taken place in the concrete industry. Although many of the fundamentals presented in previous editions of this manual remain relevant and technically correct, this eleventh edition incorporates new material to address these advances in technology
Download or read book Concrete Construction Engineering Handbook written by Edward G. Nawy and published by CRC Press. This book was released on 2008-06-24 with total page 2177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Concrete Construction Engineering Handbook, Second Edition provides in depth coverage of concrete construction engineering and technology. It features state-of-the-art discussions on what design engineers and constructors need to know about concrete, focusing on - The latest advances in engineered concrete materials Reinforced concrete construction Specialized construction techniques Design recommendations for high performance With the newly revised edition of this essential handbook, designers, constructors, educators, and field personnel will learn how to produce the best and most durably engineered constructed facilities.
Download or read book Minerals Yearbook written by United States. Bureau of Mines and published by . This book was released on 1998 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cement in written by and published by . This book was released on with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Portable Handbook written by R. Dodge Woodson and published by Elsevier. This book was released on 2011-08-15 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part One:Concrete Properties Part Two: Processes Part Three: Testing and Quality Part Four: Non-destructive Testing Methods.
Download or read book Geoenvironmental and Engineering Properties of Rock Soil and Aggregate written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1992 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineral Commodity Profiles written by United States. Bureau of Mines and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Specifications for Structural Concrete ACI 301 05 with Selected ACI References written by American Concrete Institute and published by American Concrete Institute. This book was released on 2005 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
