Download or read book Behavior of Inorganic Cements Containing Poly vinyl Alcohol written by Tun-Jen Chu and published by . This book was released on 1993 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Magnetic Resonance Spectroscopy of Cement Based Materials written by Pierre Colombet and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: NMR spectroscopy has become one of the most powerful methods for the study of the structure and dynamics of solid-state materials. NMR has thus become an important tool, not only in the study of existent cements, but also in the development of new cement-based materials. This volume, based on the proceedings of the second international conference on the NMR Spectroscopy of Cement Based Materials held in Bergamo, Italy, in June 1996, presents the only international overview of the state of the art in the use of NMR in the study of cement-based materials. - This book is of particular interest to all those working in the areas of cement science, material science, solid state chemsitry, analytical chemistry, spectroscopy and those areas of physics engaged in the study of materials.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1999 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brittle Matrix Composites 10 written by A M Brandt and published by Elsevier. This book was released on 2012-11-12 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subjects of the symposia are on composite materials behaving as brittle, normal and special conditions of exploitation. Brittle matrix composites are applied in various domains and the series of symposia are closely related to their applications in civil engineering. In the last decades their importance is increasing along with their variety and the use of most advanced methods of testing. Papers include concretes, fibre concretes and ceramics, particularly their composition, microstructure and fracture processes. Various new and advanced engineering problems are presented in the papers.
Download or read book Behavior of Hydrophobically Modified Polyvinyl Alcohol in Aqueous Solution written by Yoshimitsu Uemura and published by . This book was released on 1998 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brittle Matrix Composites written by Johan Van Ackeren and published by Elsevier Inc. Chapters. This book was released on 2012-11-12 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper aims to get insight into the physical significance of the results obtained from curve fitting of a stochastic cracking model on experimental tensile stress-strain data of cementitious composites which are uniaxially reinforced with continuous fibre bundles of different kinds, such as glass, basalt, carbon, polyethylene and polyvinyl alcohol fibres. An experimental test program is performed on the different composites containing typically 20% in volume of fibres, as well on the fibre bundles themselves. A short introduction is given to the theory behind the stochastic cracking model, based on a Weibull distribution of the matrix cracking stress, which is used for modelling the experimental results. The obtained tensile stress–strain curves are analysed by means of curve fitting and an attempt is made to draw conclusions on the physical meaning of these results. The experimental results of tensile tests on specimens with an inorganic phosphate cement matrix containing the different fibre types, revealed a wide range of mechanical behaviour: carbon fibres result in a very stiff material, PE fibres in a very strong material, while the use of PVA fibres results in a very flexible and ductile composite. Curve fitting of the stochastic cracking model on the experimental data was successfully performed, leading to the identification of the Weibull model parameters. The reference cracking strength was found to be much higher than the mean matrix cracking strength. An interpretation, based on the phenomenon of crack suppression, is given for these high values compared to those found in literature for cement composites.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1996 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Viscocity Behavior of Poly vinyl Alcohol in N methyl 2 pyrrolidone water Mixtures written by Paresh Ramhai Patel and published by . This book was released on 1976 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable and Nonconventional Construction Materials using Inorganic Bonded Fiber Composites written by Holmer Savastano Junior and published by Woodhead Publishing. This book was released on 2017-06-13 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable and Nonconventional Construction Materials Using Inorganic Bonded Fiber Composites presents a concise overview of non-conventional construction materials with a strong focus on alternative inorganic bonded fiber composites and their applications as construction components. It outlines the processing and characterization of non-conventional cementitious composites, which will be of great benefit to both academic and industrial professionals interested in research, development, and innovation on inorganic bonded fiber composites. The book gives a comprehensive review of the innovative research associated with building components based on inorganic bonded composites. Exploring both natural fibers as reinforcing elements and alternative inorganic binders based on agricultural and industrial wastes, this book also considers the performance and applications of fibrous composites as construction materials and components. - Dedicated to analyzing recent developments in inorganic fiber composites research - Discusses the broader subjects of processing, characterization, performance, and applications of non-conventional construction materials
Download or read book Smart Cement written by Cumaraswamy Vipulanandan and published by CRC Press. This book was released on 2021-07-29 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over three billion metric tons of cement are produced annually worldwide, making concrete the most extensively used construction material. Self-sensing, or smart, cement allows real-time monitoring of performance through the entire service life of a concrete structure, for the detection of changing stresses, contamination, excessive temperature, gas leaks and pre-seismic activity. This is achieved by adding a very small proportion of conductive or semi-conductive fibers, such as carbon fibers to the bulk cement, making it piezoresistive, and enabling changes in the concrete’s electrical resistivity in response to shear stress and strain to be monitored. This state-of-the-art reference work presents experimental results with a realistic theoretical framework, for cement manufactures, concrete technologists and contractors as well as researchers.
Download or read book A Real Time Study on the Mechanoptical Behavior of Polyvinyl Alcohol written by Enmin Wang and published by . This book was released on 2013 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed understanding of fundamental relationships between processing parameters is important to control the desired properties. In conventional polymer film processing, the materials undergo complex sequence of events that are difficult to capture by off line measurements on intermittently captured samples as the structural "events" that occur at later stages tend to mask earlier ones. It is especially difficult to capture fast "transient events". To address this problem, our group has developed real time on-line measurement system where true stress, strain, birefringence can be continuously monitored while subjecting the film to heating, stretching, holding and cooling cycles of any combination mimicking the actual processing conditions. Using this system, we investigated the stress and strain optical behavior of PVA films and quantified the influence of water on these relationships. First the evolution of structural events that take place during drying from cast solution was investigated using real time measurement system that captures temporal evolution of thickness, weight, birefringence (both in and out of plane). The initially isotropic solution rapidly loses solvent during the early stage and beyond a critical time, it develops optical anisotropy as evidenced by rapid rise of out of plane birefringence. In plane birefringence remains zero indicating the material exhibit uniaxial optical symmetry with the symmetry axis oriented in the normal direction. Stretching the dried films in solid state yields three-regime non-linear stress and strain-optical behavior at temperatures. The effect of temperature on the mechanoptical properties of PVA films stretched in solid state is different from that in partially molten state, since orientation plays a dominant role in determining birefringence in the former state and upon partial melting relaxation becomes pronounced in the latter state. The films swollen with water, exhibit linear relationship between birefringence and true strain. The addition of moisture promotes relaxation during deformation of PVA films by acting as plasticizer. As a result, the photoelastic constant determined during stretching in solid state was found to decrease as the water content. The strain optical constant was found to increase with water content.
Download or read book Cement and Concrete Science and Technology written by S. N. Ghosh and published by Thomas Telford. This book was released on 1991 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: - Overview of Cement and Concrete - Research and Technology - Burnability and Clinkerization of cement Raw Mixes - Cement Manufacture - Modernization of Cement Plants for Productivity and Energy Conservation - Quality Control in Cement Plant - Improving Energy Efficiency in Portland Clinker - Chemistry and Mineralogy of Cement Clinker - The Low PH Value Cement in GRC - Blended Cements - Advanced Cement-Based Materials - The Physico-Chemical Foundations of Concrete - High Stregngth Concrete and Its Microstructure - Quality Control of Concrete
Download or read book Polyvinyl Alcohol Properties and Applications written by C. A. Finch and published by John Wiley & Sons. This book was released on 1973 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive treatment of fully and partly hydrolyzed polyvinyl alcohol.--
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Inorganic Nanostructured Composites Based on Amorphous Silica Layered Silicates and Polyionenes written by Sukhyy, Kostyantyn M. and published by IGI Global. This book was released on 2023-02-20 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global trends suggest that 21st-century science and technology will be nanoscale, as traditional technologies have exhausted the potential for miniaturizing individual elements, prompting the search for alternative pathways. Nanophase materials science differs from the traditional one not only by the creation of fundamentally new materials, but also by processes that take place at the atomic and molecular levels, monolayers, and nano volumes. Polymer-Inorganic Nanostructured Composites Based on Amorphous Silica, Layered Silicates, and Polyionenes is devoted to the development of physical and chemical principles of technology for polymer-inorganic nanostructured composites based on amorphous silica, layered silicates, and polyionenes to use the creation of composites for technical purposes. Covering topics such as fractal structure, phosphoric-organic compounds, and proton conductance, this premier reference source is an essential resource for chemists, engineers, students, and educators of higher education, researchers, and academicians.
Download or read book A Framework for Durability Design with Strain Hardening Cement Based Composites SHCC written by Gideon P.A.G. van Zijl and published by Springer. This book was released on 2017-01-05 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book captures the state of the art of the durability of fibre-reinforced strain-hardening cement-based composites (SHCC) and the durability of structures or structural elements manufactured in full or in part with this class of modern construction materials. Highlights include: - Reflection on durability performance of existing applications in patch repair, a water reservoir and highway bridges. - Guidelines for tensile testing towards durability assessment of cracked SHCC. - New crack pattern related ingress rate indices for water and chloride into cracked SHCC. - The influence of low and high temperatures on SHCC durability performance. - The mechanism of crack control reducing ASR and corrosion rate, and results on chloride-induced corrosion of embedded steel reinforcement. - Self-healing of cracks in SHCC. - A conceptual durability design framework for SHCC and R/SHCC structures and members.
Download or read book Poly vinyl Alcohol written by John G. Pritchard and published by . This book was released on 1970 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
