Download Portlandcement Concrete Rheology And Workability Final Report full books in PDF, epub, and Kindle. Read online free Portlandcement Concrete Rheology And Workability Final Report ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
| Author | : |
| Publisher | : DIANE Publishing |
| Total Pages | : 111 |
| Release | : |
| Genre | : |
| ISBN | : 1428995986 |
| Author | : |
| Publisher | : |
| Total Pages | : 109 |
| Release | : 2001 |
| Genre | : Portland cement |
| ISBN | : |
"Methods for determining the workability of freshly mixed Portland-cement concrete with slumps less than 51 mm (2 in) were investigated. Four potential methods to determine the workability of concrete were proposed for evaluation and development. The methods included two moving-object methods, one free-orifice method, and a vibrating-slope method. The report outlines modifications to these existing techniques and equipment to permit the measurement of rheological properties at two or more shear rates. The vibrating-slope apparatus (VSA) was selected for further development. (Questions about this report should be addressed to Dr. Paul F. Mlakar, Sr., Chief, Concrete and Materials Division, or Mr. G. Sam Wong, Research Geologist, ERDC, Structures Laboratory)--Tech. report doc. page.
| Author | : G. Sam Wong |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2001 |
| Genre | : Concrete |
| ISBN | : |
Methods for determining the workability of freshly mixed portland-cement concrete with slumps less than 51 mm (2 in) were investigated. Four potential methods to determine the workability of concrete were proposed for evaluation and development. The methods included two moving-object methods, one free-orifice method, and a vibrating-slope method. The report outlines modifications to these existing techniques and equipment to permit the measurement of rheological properties at two or more shear rates. The vibrating-slope apparatus (VSA) was selected for further development. (Questions about this report should be addressed to Dr. Paul F. Mlakar, Sr., Chief, Concrete and Materials Division, or Mr. G. Sam Wong, Research Geologist, ERDC, Structures Laboratory.).
| Author | : N Roussel |
| Publisher | : Elsevier |
| Total Pages | : 379 |
| Release | : 2011-12-20 |
| Genre | : Technology & Engineering |
| ISBN | : 0857095285 |
Estimating, modelling, controlling and monitoring the flow of concrete is a vital part of the construction process, as the properties of concrete before it has set can have a significant impact on performance. This book provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, the impact of mix design, and casting. Part one begins with two introductory chapters dealing with the rheology and rheometry of complex fluids, followed by chapters that examine specific measurement and testing techniques for concrete. The focus of part two is the impact of mix design on the rheological behaviour of concrete, looking at additives including superplasticizers and viscosity agents. Finally, chapters in part three cover topics related to casting, such as thixotropy and formwork pressure. With its distinguished editor and expert team of contributors, Understanding the rheology of concrete is an essential reference for researchers, materials specifiers, architects and designers in any section of the construction industry that makes use of concrete, and will also benefit graduate and undergraduate students of civil engineering, materials and construction. Provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, casting and the impact of mix design The estimating, modelling, controlling and monitoring of concrete flow is comprehensively discussed Chapters examine specific measurement and testing techniques for concrete, the impact of mix design on the rheological behaviour of concrete, particle packaging and viscosity-enhancing admixtures
| Author | : Mohamadreza Moini |
| Publisher | : AuthorHouse |
| Total Pages | : 151 |
| Release | : 2011 |
| Genre | : Computers |
| ISBN | : 1452036098 |
This book is trying to help expand the knowledge of fresh concrete workability. Concrete workability depends on lots of parameters and varies significantly with conditional alteration. The temperature is of great importance determining the workability. This book presents theoretical information and experimental discussions investigating the influence of fresh concrete temperature and ingredients on the workability. Programming and different statistical programs are applied to include the most appropriate results. Artificial neural network prediction of workability is investigated in two situations; with and without concrete temperature. The most relevant cutting edge studies on this issue are cited and discussed to support the readers for the future studies. Ce livre essaie de faire progresser la connaissance de la fluidité du béton frais. La fluidité du béton dépend de beaucoup de paramètres et varie de manière significative avec le changement des conditions (température, humidité, souffle du vent, lumière du soleil). La température a beaucoup d'importances pour déterminer la fluidité. Ce livre présente des informations théoriques et des discussions expérimentales pour examiner l'influence de la température du béton frais et les ingrédients sur la fluidité. La programmation et les différents programmes statistiques ont été appliqués afin d'obtenir les résultats les plus appropriés. La prédiction de fluidité de RNA (le réseau de neurones artificiels) a été étudié dans deux situations: avec et sans température du béton frais. Les plus pertinentes recherches, concernant ce sujet, ont été faites pour appuyer les lecteurs aux études futures.
| Author | : |
| Publisher | : |
| Total Pages | : 372 |
| Release | : 2001 |
| Genre | : Highway research |
| ISBN | : |
| Author | : Peter J.M. Bartos |
| Publisher | : RILEM Publications |
| Total Pages | : 170 |
| Release | : 2002 |
| Genre | : Concrete |
| ISBN | : 9782912143327 |
| Author | : Scott Schlorholtz |
| Publisher | : |
| Total Pages | : 112 |
| Release | : 2006 |
| Genre | : Pavements, Concrete |
| ISBN | : |
This research project investigated important variables that impact the homogeneity and rheology of concrete mixtures. The project consisted of a field study and a laboratory study. The field study collected information from six different projects in Iowa. The information that was collected during the field study documented cementitious material properties, plastic concrete properties, and hardened concrete properties. The laboratory study was used to develop baseline mixture variability information for the field study. It also investigated plastic concrete properties using various new devices to evaluate rheology and mixing efficiency. In addition, the lab study evaluated a strategy for the optimization of mortar and concrete mixtures containing supplementary cementitious materials.
| Author | : Peter C. Taylor |
| Publisher | : |
| Total Pages | : 168 |
| Release | : 2006 |
| Genre | : Concrete |
| ISBN | : |
Unexpected interactions between otherwise acceptable ingredients in portland cement concrete are becoming increasingly common as cementitious systems become more and more complex and demands on the systems are more rigorous. Such incompatibilities are exhibited as early stiffening or excessive retardation, potential for uncontrolled early-age cracking, and unstable or unacceptable air-void systems. A number of test methods have been reviewed to assess their usefulness in detecting incompatibility early to help prevent problems with pavements in the field. A protocol has been developed to allow product manufacturers, concrete producers, contractors, and owners to monitor their materials and concrete systems. The protocol is phased to allow relatively simple field ttests to provide early warnings of potential problems and tthen central laboratory tests to support and confirm the field work. This is the first of two volumes. The other volume in the series is: FHWA HRT-06-080, Identifying incompatible combinations of concrete materials, volume II--Test protocol.
| Author | : H.J. Wierig |
| Publisher | : CRC Press |
| Total Pages | : 303 |
| Release | : 2004-06-02 |
| Genre | : Architecture |
| ISBN | : 0203626796 |
This book presents new information on concrete properties and production in the light of the widespread use of ready mixed concrete and new concreting materials. This book forms the Proceedings of the RILEM Colloquium held in Hanover, West Germany in October 1990. Papers from 18 countries in Europe, North America and the Far East are included.
