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 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 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 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 Tests of Blends of Portland and Natural Cements written by United States. Central Concrete Laboratory, Mount Vernon, N.Y. and published by . This book was released on 1944 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1972 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Further Laboratory Studies of Portland Pozzolan Cements written by William F. Perenchio and published by . This book was released on 1976 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field and Laboratory Studies of the Sulfate Resistance of Concrete written by Bryant Mather and published by . This book was released on 1967 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Concrete Investigation in Research Project C 13 written by S. T. Collier and published by . This book was released on 1946 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance of Concretes Proportioned with Pyrament Blended Cement written by Tony B. Husbands and published by . This book was released on 1994 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Testing Laboratory Performance written by and published by . This book was released on 1980 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Testing Laboratory Performance evaluation and Accreditation written by Gerald A. Berman and published by . This book was released on 1980 with total page 192 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 Well Cementing written by E.B. Nelson and published by Newnes. This book was released on 1990-09-24 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cementing is arguably the most important operation performed on a well. Well cementing technology is an amalgam of many interdependent scientific and engineering disciplines which are essential to achieve the primary goal of well cementing - zonal isolation. This textbook is a comprehensive and up-to-date reference concerning the application of these disciplines to cementing a well.``Well Cementing'' is envisioned as an upper-level university book, as well as a reference for practicing engineers and scientists. The first section of the book illustrates how the quality of the hydraulic seal provided by the cement sheath can affect well performance. The second section concentrates on the design phase of a cementing treatment, and various aspects of cement job execution are covered in the third section. The fourth section addresses cement job evaluation. The text is supported by many tables and figures, an extensive bibliography and an index. There are also chapters devoted to subjects which are currently of particular interest to the industry, including the prevention of annular gas migration, foamed cements, and cementing horizontal wellbores. The chemistry associated with well cementing is presented in detail.Most of the contributors to this volume are employees of Dowell Schlumberger, one of the leading companies in this field.
Download or read book A Comprehensive Method for Concrete Mix Design written by Janamian, K. and published by Materials Research Forum LLC. This book was released on 2020-01-20 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel method of concrete mix design is presented. Tests with various constituent materials are reported in great detail. Both laboratory tests and applications in industry show the method to be very successful for all kinds of normal constituent materials, including silica fume, ground granulated blast furnace slag, fly ash, natural pozzolans, blended cement, fine and coarse aggregates, water, air entraining admixtures, plasticizers and super-plasticizers.
Download or read book NBS Special Publication written by and published by . This book was released on 1980 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Results of Laboratory Tests on Materials for Thin Repair of Concrete Surfaces written by W. Glenn Smoak and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
