Download or read book Hydration Behavior of Portland Cements with Different Hemihydrate Gypsum Ratios in the Presence of Common Chemical Admixtures written by SA. Farrington and published by . This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interactions that take place between hydrating portland cement and chemical admixtures during the early hydration period affect the performance of concrete. Many of the early hydration reactions involve sulfate phases. Cement manufacturers intergrind calcium sulfate with clinker in the finish mill to provide control for the aluminate reactions during hydration. The calcium sulfate is typically added as gypsum, but some of this gypsum can dehydrate to calcium sulfate hemihydrate or soluble anhydrite, depending on the conditions in the finish mill. The final form of the calcium sulfate may affect the hydration characteristics of the cement in the presence of various chemical admixtures.
Download or read book The Behavior of Admixtures of Portland Lumnite Cements written by Meyer Hecht and published by . This book was released on 1925 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Chemical Admixtures on Portland Cement Hydration written by I. Odler and published by . This book was released on 1987 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of selected chemical admixtures on the progress of portland cement hydration, composition of the hydration products, and strength development was studied. Calcium chloride (CaCl2) accelerated the hydration of both tricalcium silicate (C3S) and tricalcium aluminate (C3A) and increased the calcium oxide/silicon dioxide (CaO/SiO2) ratio of the formed calcium-silicate-hydrate (CSH) phase. In the presence of zinc oxide (ZnO), Na-lignosulfonate, and a melamine resin, the hydration of both C3S and C3A was retarded, while in the presence of sucrose only that of C3S. The effect of all these additives was more pronounced if pure C3S rather than portland cement was employed. Regardless of the kind and amount of admixture added (except high amounts of CaCl2) and hydration time, the bound water content, amount of liberated calcium hydroxide, and compressive strength were linear functions of the amount of hydrated C3S.
Download or read book Significance of ASTM Designation C 265 Calcium Sulfate in Hydrated Portland Cement Mortar written by Waterways Experiment Station (U.S.) and published by . This book was released on 1961 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PRO 13 2nd International RILEM Symposium on Hydration and Setting Why does cement set An interdisciplinary approach written by A. Nonat and published by RILEM Publications. This book was released on 2000 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Portland Cement written by Robert Herman Bogue and published by . This book was released on 1955 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydration of Portland Cement written by Abraham Albert Klein and published by . This book was released on 1914 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes in the Early Hydration Behavior of Portland Cement Used in the Solidification of Hazardous Chemicals written by Frank P. Frey and published by . This book was released on 1988 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract.
Download or read book Hydration of Portland Cement written by Abraham Albert Klein and published by Franklin Classics. This book was released on 2018-10-16 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Changes in Characteristics of Portland Cement as Exhibited by Laboratory Tests Over the Period 1904 to 1950 written by Harrison Frederick Gonnerman and published by . This book was released on 1952 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin Research Department written by Portland Cement Association. Research and Development Laboratories. Research Dept and published by . This book was released on 1960 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploratory Studies of Early Strength Development in Portland Cement Pastes and Mortars written by Raymond Leonard Blaine and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Gypsum on the Hydration and Properties of Portland Cement Pastes written by William Lerch and published by . This book was released on 1946 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Another Look at the Portland Cement Chemical Admixture Incompatibility Problem written by VH. Dodson and published by . This book was released on 1989 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports of incompatibility between portland cement and chemical admixtures have increased over the past ten years. Specifications written by architects and engineers calling for the use of admixtures in concrete often result in strange occurrences, that is, rapid set, accelerated stiffening, increase in time of set, lack of water reduction. This paper addresses the effect of the composition of the cement and that of the chemical admixtures on incompatibility with respect to the problems of rapid set and accelerated slump loss.
Download or read book The Chemical and Physical Examination of Portland Cement written by Richard Kidder Meade and published by . This book was released on 1901 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by Portland Cement Association. Research and Development Laboratories and published by . This book was released on 1957 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Cement Hydration and the Use of Water Reducing Set Controlling Admixtures written by Daniel Jay Rhoades and published by . This book was released on 1961 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
