Download or read book An Investigation of Blended Portland Cement written by Edgar Scott MacCandliss and published by . This book was released on 1918 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Preliminary Report on Blended Portland Cement written by Edgar Scott McCandliss and published by . This book was released on 1917 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology of Portland Cement and Blended Cements written by H.N. Banerjea and published by . This book was released on 1998-03-01 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation in Concrete written by Don H. Morgan and published by . This book was released on 1916 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: "It is the purpose of this investigation to determine the effect of blending a portland cement with a fine silica sand. A blended cement such as this has been used successfully and economically in several important works. The United States Reclamation Service and the Los Angeles Aqueduct commission have made use of such a blended cement in several important structures. This dilution, so to say, of the cement results is a decrease in cost without a loss of strength. In this investigation it has been assured that the cement retained on a #200 sieve is inert and may be replaced by a fine sand"--Purpose of Investigation, leaves 1-2.
Download or read book Effects of Duration of Moist Curing on Concrete Made with Blended Cements Or Pozzolans written by William O. Tynes and published by . This book was released on 1969 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Portland Blast furnace Slag Cements written by Waterways Experiment Station (U.S.) and published by . This book was released on 1956 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Studies of Blended Cements written by Paul Klieger and published by . This book was released on 1972 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Invesitgation of Blended Portland Cement by Edgar S McCandliss and Henry H Armsby written by Edgar Scott McCandliss and published by . This book was released on 1918 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of the Sulfate resisting Properties of Portland Blended Cements written by R. A. Holmes and published by . This book was released on 1945 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nagra PSI Chemical Thermodynamic Data Base 01 01 written by Wolfgang Hummel and published by Universal-Publishers. This book was released on 2002 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Nagra/PSI Chemical Thermodynamic Data Base 01/01 is an encyclopedia of thermodynamic data recommended for environmental studies. The data base focuses on elements commonly found as major solutes in natural waters, and on actinides and fission products relevant for radioactive waste disposal projects. It is the official chemical thermodynamic data base used in Swiss radioactive waste disposal projects. The detailed discussion of every number recommended in this encyclopedia is the result of a multi man-year project of the Paul Scherrer Institut (PSI), a Swiss National Lab. The five authors of this work have many years of experience in research, data base development and the application of thermodynamic data in environmental studies. The data included for many elements are based on their reviews of the basic literature. The data base also includes additional data selected by the authors from recommendations of other experts in ground- water geochemistry and of the international data base project of the Nuclear Energy Agency (NEA).This report is indispensable for every scientist working in the field of environmental studies as the comprehensive source of information on the quality of the thermodynamic data governing particular problems in environmental geochemistry, especially those concerned with the fate of hazardous substances. This enables graduate students, researchers and consultants, as well as regulators and reviewers of scientific papers to assess the scientific basis of environmental modeling studies. The encyclopedia can be used as a stand-alone source of knowledge but amplereferences are provided for readers who wish to go beyond the level of discussion in the book. An electronic version of the data base and a data base management program is available for download at our homepage (http://les.web.psi.ch/TDBbook.htm).
Download or read book Laboratory Studies of Blended Cements written by Paul Klieger and published by . This book was released on 1967 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of hydration processes of Portland cements blended with supplementary cementitious materials written by Axel Schöler and published by GRIN Verlag. This book was released on 2012-08-16 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2012 in the subject Chemistry - Materials Chemistry, grade: 1,3, TU Bergakademie Freiberg (Institut für Glas, Keramik und Baustofftechnik), course: Bauchemie, language: English, abstract: The production of Portland cement clinker has a share of about 6% to 8% on the global CO2-emissions . Approximately 60% of those emissions are attributable to the decarbonation of limestone. A widespread approach for the reduction of the CO2-emissions is to replace the clinker in the cement by pozzolanic waste materials, e.g. fly ash. The reaction of fly ash is generally slow. Due to this slow reaction cement pastes mixed of Portland cement and fly ash have a slower strength development than pure Portland cement, at least at early ages up to 7 days. The goal of this study was to increase early strength properties of Portland cement/fly ash blends by increasing the early ettringite formation in order to decrease the porosity. Therefore various amounts of anhydrite and laboratory synthesised C3A were added to Portland cement/fly ash systems that contained 30% fly ash. The behavior of these systems in terms of kinetics, phase development and microstructure was studied by means of strength tests, isothermal calorimetry, thermogravimetric analysis, chemical shrinkage, X-ray diffraction, backscattered electron image analysis, mercury intrusion porosimetry and thermodynamic modeling. In addition the activation by Na2SO4 was investigated on certain systems. It was found that the amount of ettringite formed increases gradually with increasing amounts of anhydrite and C3A. The formation of ettringite was completed at approximately 1 day. Further the activation with Na2SO4 increased the amount of ettringite and shifted the completion of its formation to approximately 2 days. Due to the addition of anhydrite and C3A the porosity decreased corresponding to the amount of ettringite formed. The effects on the development of early strength were most distinct for very high additions and for systems activated by Na2SO4. All systems showed equal strengths at 7 d and 28 d. For later ages up to 90 days, the benefits at early ages were found to be inversed, leading to lower strength values compared to systems without or with low additions of anhydrite, C3A or Na2SO4. Eventually the increase in early strength was either too low to be significant or only relevant at very high additions of anhydrite and C3A with simultaneous system activation by Na2SO4. In terms of kinetics a remarkable impact of the added C3A was observed as this seemed to significantly accelerate the silicate reaction of the Portland cement.
Download or read book An Investigation of Modified Portland Cements written by Glenroy Gardner Grogan and published by . This book was released on 1926 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tests of Blends of Portland Cement with Masonry Cement written by ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS. and published by . This book was released on 1953 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted to determine the suitability of masonry cement blended with portland cement for use in concrete construction. Tests were made on three types of commercially manufactured masonry cements; one with a limestone base, one with a natural cement base, and one with a water-quenched blast-furnace slag base. The investigation included the making of physical and chemical tests on the portland and masonry cements alone and in blends, in pastes, mortars, and concrete. (Author).
Download or read book Bulletin Structural Materials Research Laboratory Lewis Institute Chicago written by Structural Materials Research Laboratory, Chicago and published by . This book was released on 1925 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science and Technology of Concrete Admixtures written by Pierre-Claude Aïtcin and published by Woodhead Publishing. This book was released on 2015-11-12 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Technology of Concrete Admixtures presents admixtures from both a theoretical and practical point-of-view. The authors emphasize key concepts that can be used to better understand the working mechanisms of these products by presenting a concise overview on the fundamental behavior of Portland cement and hydraulic binders as well as their chemical admixtures, also discussing recent effects in concrete in terms of rheology, mechanics, durability, and sustainability, but never forgetting the fundamental role played by the water/binder ratio and proper curing in concrete technology. Part One presents basic knowledge on Portland cement and concrete, while Part Two deals with the chemical and physical background needed to better understand what admixtures are chemically, and through which mechanism they modify the properties of the fresh and hardened concrete. Subsequent sections present discussions on admixtures technology and two particular types of concrete, self-consolidating and ultra-high strength concretes, with final remarks on their future. - Combines the knowledge of two leading authors to present both the scientific and technology of admixtures - Explains what admixtures are from a chemical point-of-view and illustrates by which mechanisms they modify the properties of fresh and hardened concrete - Presents a fundamental, practical, and innovative reference book on the topic - Contains three detailed appendices that can be used to learn how to use admixtures more efficiently
Download or read book Bulletin Structural Materials Research Laboratory Lewis Institute written by Structural Materials Research Laboratory and published by . This book was released on 1919 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
