A. G. Simakin、T. P. Salova、M. Romero 等 4 位作者2001-12-01Materiales de Construccion
The aluminosilicate melt is a partly ordered phase and is the origin of glass for producing glassceramics and petrurgical materials. They are well extended used as construction materials for pavings and coatings. Its structure can be described in the terms of the aluminosilica tetrahedras coordination so-called Q spec…
L. Barbieri、A. Corradi、I. Lancellotti2001-12-01Materiales de Construccion
Actually, the inertization, recovery and valorisation of the wastes coming from municipal and industrial processes are the most important goals from the environmental and economical point of view. An alternative technology capable to overcome the problem of the dishomogeneity of the raw material chemical composition i…
F. D. Tamás、J. Abonyi、F. Puertas2001-12-01Materiales de Construccion
The qualitative identification to determine the origin (i.e. manufacturing factory) of Spanish clinkers is described. The classification of clinkers produced in different factories can be based on their trace element content. Approximately fifteen clinker sorts are analysed, collected from 11 Spanish cement factories…
Ivanov Yatchko、Kavardjikov Vasil、Pashkuleva Dessislava2001-12-01Applied Rheology
A method has been proposed for quantitative characterization of the flow behaviour of fluids, which is an important problem of applied rheology. Particle Image Velocimetry technique has been used for visualization and measurement of the velocity field. The rheometric study of the fluid is aimed at determining the char…
J. Calleja2001-12-01Materiales de Construccion
The aim of the author is to present an historical survey of the birth, growth and development along the fifty years of the life of the scientific and technical magazine MATERIALES DE CONSTRUCCIÓN, mainly devoted to cement and concrete matters. This has been intended in the present paper taking into account four period…
S. Goñi、A. Guerrero、M. A. Macías 等 5 位作者2001-12-01Materiales de Construccion
The present paper is a comparative study of some characteristics of new belite cements obtained from two kind of wastes, which were used as secondary raw materials: fly ash (FA), of low CaO content, from coal combustion, and ash from incineration of municipal solid waste (MSWIA). Cements were synthesised in a range of…
Rolf Tarrach2001-12-01Materiales de Construccion
Marn Jure、Delic Marjan、Zunic Zoran2001-12-01Applied Rheology
Suitability of finite difference method and finite volume method for computation of incompressible non newtonian flow is analyzed. In addition, accuracy of numerical results depending of mesh size is assessed. Both methods are tested for driven cavity and compared to each other, to results from available literature an…
Wang Y.-C.、Gunasekaran S.、Giacomin A. J.2001-12-01Applied Rheology
The viscoelasticity of reduced-fat Cheddar and Mozzarella cheeses was characterized in small (parallel disk rheometer, go = 0.01) and large (sliding plate rheometer, 0.2< go <7) amplitude oscillatory shear at 40 and 60˚C. We deduced the linear relaxation spectrum from the small strain measurements. At large strain amp…
Stading Mats2001-12-01Applied Rheology
A. Miravete2001-12-01Materiales de Construccion
There are two mainstreams in the building industry in the area of carbon fibers: rehabilitation and use as building material. The using of carbon fiber as a building material is taking place slower than as rehab system due to the very low cost of traditional building materials, the limitations of composite structure m…
A. J. Boyd、S. Mindess、J. Skalny2001-12-01Materiales de Construccion
Some of the factors affecting the durability of modern concrete structures are discussed, with an emphasis on the problems caused by modern portland cements. This is followed by a description of some concrete durability issues of current interest, such as plastic shrinkage, seawater attack, and sulfate attack. The str…
F. Veniale、M. Setti、C. Rodríguez-Navarro 等 4 位作者2001-12-01Materiales de Construccion
Stone alterability/durability is depending upon a number of intrinsic and extrinsic factors among which "clay minerals" constituents, either diffused throughout the stone framework or as coating-filling of void spaces, can play an important role. Swelling-shrinking and aggregation-disaggregation phenomena occurring by…
Mohammed Ali、A. Jabber Mian、MM Islam 等 6 位作者2001-12-01Indian Journal of Fibre & Textile Research
The plain woven fabrics have been prepared from the blends of sulphonated jute fibre with natural and synthetic fibres, and their geometrical, physico-mechanical and drapping properties studied. It is observed that the blended fibre fabrics show improved textile properties, almost similar to those of the cotton fabric…
Textile materials and evaluationsMaterial Properties and Applications
M. I. Sánchez de Rojas、F. P. Marín、M. Frías 等 4 位作者2001-12-01Materiales de Construccion
The recycled and re-valuation process of waste materials involves studies lead to a deep acknowledges of them, finding applications for their intended use. The waste materials from ceramic products can be recycled into the construction sector, as arid or pozzolanic materials. The current work deals with the incorporat…
J. Lorenzana、C. Castellani、C. Di Castro2001-12-01Physical review. B, Condensed matter
The theory of first-order density-driven phase transitions with frustration due to the long-range Coulomb (LRC) interaction developed in paper I of this series is applied to the following physical systems: (i) the low-density electron gas, (ii) electronic phase separation in the low-density three-dimensional $t\ensure…
Physics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics
M. Cardona2001-12-01physica status solidi (a)
In the past five years enormous progress has been made in the ab initio calculations of the optical response of electrons in semiconductors. The calculations include the Coulomb interaction between the excited electron and the hole left behind, as well as local field effects. However, they are performed under the assu…
Metallurgical and Alloy ProcessesAdvanced Materials and Semiconductor TechnologiesSemiconductor Quantum Structures and Devices
Marco Giulietti、Marcelo Martins Seckler、Silas Derenzo 等 5 位作者2001-12-01Brazilian Journal of Chemical Engineering
Crystallization and precipitation from solutions are responsible for 70% of all solid materials produced by the chemical industry. Competing with distillation as a separation and purification technique, their use is widespread. They operate at low temperatures with low energy consumption and yield with high purificati…
Process Optimization and IntegrationCrystallization and Solubility StudiesPetroleum Processing and Analysis
Alam S. Hasson、Grazyna E. Orzechowska、Suzanne E. Paulson2001-12-01Journal of Geophysical Research Atmospheres
Ozone‐alkene reactions generate stabilized Criegee intermediates (of the form R 1 R 2 COO), which are believed to react with water molecules to form organic hydroperoxides, hydrogen peroxide and carboxylic acids. These reactions are thought to be significant sources of these environmentally important compounds, yet bo…
Catalysis and Oxidation ReactionsCatalytic Processes in Materials ScienceChemical Reactions and Mechanisms
Kui Yu、Alan J. Hurd、Adi Eisenberg 等 4 位作者2001-12-01Langmuir
Silica/diblock films with various mesostructures of large characteristic length scales were synthesized through evaporation-induced self-assembly (EISA). The structure-directing agents used were amphiphilic polystyrene- block -poly(ethylene oxide) (PS- b -PEO) diblock copolymers of high molecular weights. The synthesi…
Aerogels and thermal insulationSurfactants and Colloidal SystemsMesoporous Materials and Catalysis