Download or read book Rheological Evaluation of Dense Suspensions Simulation of a Fresh Cement Paste written by Richard John Shaughnessy and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheology of Fresh Cement Based Materials written by Qiang Yuan and published by CRC Press. This book was released on 2022-12-28 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces fundamentals, measurements, and applications of rheology of fresh cement-based materials. The rheology of a fresh cement-based material is one of its most important aspects, characterizing its flow and deformation, and governing the mixing, placement, and casting quality of a concrete. This is the first book to bring the field together on an increasingly important topic, as new types of cement-based materials and new concrete technologies are developed. It describes measurement equipment, procedures, and data interpretation of the rheology of cement paste and concrete, as well as applications such as self-compacting concrete, pumping, and 3D printing. A range of other cement-based materials such as fiber-reinforced concrete, cemented paste backfills, and alkali-activated cement are also examined. Rheology of Fresh Cement-Based Materials serves as a reference book for researchers and engineers, and a textbook for advanced undergraduate and graduate students.
Download or read book Rheology of Fresh Cement and Concrete written by P.F.G. Banfill and published by CRC Press. This book was released on 1990-09-27 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together new research information on the flow behaviour of cementitious materials from the UK, France, Italy, Germany, Poland, Finland, USSR, USA and Japan, presented at the International Conference organised by the British Society of Rheology in March 1990.
Download or read book SPE Production Engineering written by and published by . This book was released on 1990 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheology of particle suspensions fresh concrete mortar and cement paste with various types of lignosulfonates written by Jon Elvar Wallevik and published by . This book was released on 2003 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheology and Processing of Construction Materials written by Viktor Mechtcherine and published by Springer Nature. This book was released on 2019-08-24 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the peer-reviewed contributions presented at two parallel, closely interconnected events on advanced construction materials and processes, namely the 2nd International RILEM Conference on Rheology and Processing of Construction Materials (RheoCon2) and the 9th International RILEM Symposium on Self-Compacting Concrete (SCC9), held in Dresden, Germany on 8-11 September 2019. The papers discuss various aspects of research on the development, testing, and applications of cement-based and other building materials together with their specific rheological properties. Furthermore, the papers cover the latest findings in the fast-growing field of self-compacting concrete, addressing topics including components’ properties and characterization; chemical admixtures, effect of binders (incl. geopolymers, calcined clay, etc.) and mixture design; laboratory and in-situ rheological testing; constitutive models and flow modelling; numerical simulations; mixing, processing and casting processes; and additive manufacturing / 3D-printing. Also presenting case studies, the book is of interest to researchers, graduate students, and industry specialists, such as material suppliers, consultants and construction experts.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts Literature and Patents written by and published by . This book was released on 1990 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Rheology of Fresh Concrete written by G. H. Tattersall and published by Pitman Advanced Publishing Program. This book was released on 1983 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings Eastern Regional Meeting written by Society of Petroleum Engineers of AIME. Eastern Regional Meeting and published by . This book was released on 1988 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring Rheological Properties of Cement based Materials written by Mohammed Sonebi and published by Springer Nature. This book was released on 2023-10-13 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the work of the RILEM TC 266-MRP, whose purpose was to enhance the reliability of rheological measurements performed on cement-based materials. It makes users more aware of potential sources of errors in the measurements, and provide guidelines on how to observe, counteract or eliminate the errors. Improving the reliability of rheological measurements will further enhance the use of rheology to investigate different aspects of the fresh properties of cement-based materials. After an introduction into mix design and applications, the book delivers a comprehensive overview of rheology definitions, behavior, and parameters; rheometers; measuring and analysis procedures; difficulties and challenges during measurements; relationships with specific empirical tests; and the behavior of concrete near a surface. This report on the measurement of rheological properties of complex materials such as concrete enables readers to understand the applicable concepts of rheology, and address the challenges on the measuring procedures, the rheological models and some errors and limitations of rheometers used.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1987 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Petroleum Technology written by and published by . This book was released on 1988 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheological Studies and Percolation Modeling of Microstructure Development of Fresh Cement Paste written by Wei-Guo Lei and published by . This book was released on 1995 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study combines rheology, scanning electron microscopy (SEM) and cement hydration studies as well as theoretical modeling to gain fundamental understanding about the microstructure, its control of flow behavior, its development due to hydration, and setting. By carefully examining the creep and recovery behavior of cement paste, two physical parameters are proposed to characterize quantitatively the microstructure of cement paste and effect of hydration, the yield stress ($tausb{rm y})$ and failure strain ($gammasb{rm y}$). It was found that $tausb{rm y}$ increased slowly in the first 1-2 hours hydration (Zone I), after which it increased much more rapidly (Zone II). The transition time between Zone I and Zone II corresponds to the initial setting time (t$sb{rm set})$ of cement. The failure strain, on the other hand, increases drastically by more than one order of magnitude at initial set. This transition time corresponds approximately to the end of the induction period as determined by calorimetry. Kinetic analysis based on the $tausb{rm y}$ measurements suggested that the rate limiting process in early cement hydration is diffusion. The oscillatory shear measurements, on the other hand, showed that the elastic modulus (G$spprime$) increased continuously with hydration, forming an S-shaped curve, increasing slowly (Zone I), then more rapidly (Zone II) and finally slowly again (Zone III). The transition time between Zone II and III corresponds to the initial setting time as defined by the $tausb{rm y}$ measurements. The increase of both $tausb{rm y}$ and G$spprime$ was attributed to the formation of hydration product (CSH) in the neck area between cement particles. A bond percolation model based on experimental results is proposed to describe this microstructure development. Cement particles are initially flocculated by Van der Waals bonds to form a three dimensional network structure. With hydration the weaker Van der Waals bonds are randomly replaced by the stronger chemical bonds due to cement hydration and formation of CSH. Cement paste sets when the chemical bonds percolate within the microstructure. Both a two dimensional triangular beam network and a two dimensional spring lattice were used to simulate microstructure development in an attempt to understand the different behaviors of G$spprime$ and $tausb{rm y}$. Modulus and yield stress of the network were calculated as weak bonds are replaced by strong bonds. In combination with the cement hydration simulation model, the predicted evolution in modulus and yield stress agrees well with experimental results. The current study concludes that the rheological behavior of cement paste is similar to that of colloidal gels. However with the hydration, the nature of the bonding between particles changes, bringing about complex rheological changes.
Download or read book Transactions written by American Institute of Mining, Metallurgical, and Petroleum Engineers and published by . This book was released on 1991 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some vols., 1920-1949, contain collections of papers according to subject.
Download or read book Advances in Experimental and Computational Rheology written by Maria Teresa Cidade and published by MDPI. This book was released on 2019-08-05 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue Advances in Experimental and Computational Rheology that was published in Fluids
Download or read book Cement Paste Reference Material SRM 2492 Shelf life Extension written by Alex Olivas and published by . This book was released on with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cement-based materials (e.g. cement paste, mortar and concrete) are complex rheological fluids that display time-dependent and shear-dependent rheological behavior. Over the years, various concrete rheometers have been proposed and made available commercially; however, there is no method to calibrate them. Furthermore, typical calibration fluids used in commercial rheometers are not well suited for the concrete rheometer calibration due to their high cost and they are Newtonian (i.e., not a complex fluid). Therefore, there was a clear need for a reference material specifically designed for concentrated, granular suspensions, such as cement paste, mortar and concrete; this need led to the development of a new series of reference materials for calibration of devices used in cement-based suspension rheological testing. The reference material to simulate cement paste, SRM 2492, was composed of a fine limestone powder in a corn syrup matrix. While the ranking of mixtures tested using these rheometers tend to match, the absolute values for the rheological properties of the mixtures evaluated with different rheometers are not well correlated [1, 2]. Additionally, due to microbial growth in the paste matrix, the shelf life of standard reference material 2492 was limited to 7 d. This paper presents the results of a study to analyze how to minimize microbial growth within the paste matrix. Various biocides that extend the shelf-life of the reference material were examined, with the most promising method being sodium propionate, a non-toxic chemical. Furthermore, recommendations to improve the storage of SRM are provided to extend the usable shelf life.
