|Book Details :|
Oleg Figovsky and Dmitry Beilin are the editors of Advanced Polymer Concretes and Compounds eBook.
- Chapter 1. State of the Art in Polymer Concrete.
- Chapter 2. Polymer Concrete Based on a Vulcanized Polybutadiene Matrix.
- Chapter 3. Polymer Concrete Based on an Organo–Silicate Matrix.
- Chapter 4. Nonisocyanate Polyurethanes Based on Cyclic Carbonates.
- Chapter 5. Crack-Resistant and Anticorrosive Coatings Based on Vulcanized Water Dispersion of Chlorosulfonated Polyethylene.
- Chapter 6. Epoxy–Rubber Coatings with Nano-Heterogenic Structure.
- Chapter 7. Nanostructured Binder for Acid-Resistant Building Materials.
- Chapter 8. Waterborne Fire-Protective and Heat-Stability Coating Compositions.
Developments in civil engineering and the growth of industry have created a continual demand for building materials with new and improved performance attributes.
One of the current intensively progressing ways of improving efficiency of building structures is the use of a new class of building materials—polymer composites. It is now virtually impossible to find technical, transport, or building structures in which there are no composite materials.
This progress is the result of the unique quality of these materials—a combination of high strength, at the level of structural steel— and the inherent features of nonmetallic materials.
New technological processes closely related with aggressive environments require increases in the manufacture of durable and effective composite materials that can withstand hostile media.
Corrosion, the negative effects of radiation and temperatures, high UV radiation, and other adverse natural and anthropogenic effects on building structures are real problems that affect the human living environment.
A radical way to increase the durability of composite materials and products is the use of composites based on polymer binders.
The first scientific results in this field were developed by Professor O. Figovsky and are protected by more than 25 patents in the United States, Germany, and Russia.
|Related Free eBooks|
|Advanced Concrete Technology|
This Advanced Polymer Concretes and Compounds book contains the descriptions and results of theoretical and experimental research in the field of efficient building material composites based on advanced polymer binders that were carried out by scientific teams from Polymate Ltd.,
International Nanotechnology Center (http://www.polymateltd.com, Israel) and Voronezh State University of Architecture and Civil Engineering (VGASU, Russia) with the direct participation or under the leadership of the authors.
Physical and mechanical characteristics of these composites, including chemical resistance in various aggressive environments, are discussed in this Advanced Polymer Concretes and Compounds book.
It is well known that polymer concrete (PC) is used in severe conditions in industrial and public buildings, as well as in transportation and hydraulic structures. The main advantages of polymer concrete over ordinary concrete are improved mechanical strength, low permeability, and improved chemical resistance.
The main limitation is their relatively high material cost. For this reason, it is important to find the optimum technical–economic compromise.
This Advanced Polymer Concretes and Compounds book examines the design issues related to the composition and properties of two new polymer concretes in relation to the polymer matrix and its material and building structure: rubber concrete based on polybutadiene binder and silicate polymer concrete with an organic–silicate matrix.
Application of these polymer concretes in construction allows the builder to solve the problems of corrosion, the negative influence of temperature, degradation of a material at increased UV exposure, γ-radiation, and to increase the period between repairs, reliability, and durability of buildings and structures, especially those in aggressive environments.
The complexities of physical–mechanical, heat–physical, and technological properties of these PCs, their behavior in environmentally aggressive conditions, and problems of durability and reliability are studied. Special chapters are devoted to new environmentally friendly polymer compounds for monolithic industrial floor coverings and coatings.
Well-known features of conventional polyurethane coverings are porosity, poor hydrolytic stability, and increased permeability. The involvement of toxic components, such as isocyanates, in the fabrication process make it extremely toxic and dangerous.
New and promising methods for producing an epoxy–urethane hybrid compound allowed the material to be obtained with lower permeability, improved physical–mechanical characteristics, and safe manufacturing.
The environmentally friendly two-component polyurethane binders for monolithic flooring and industrial coatings do not consist of isocyanate components at any stage of preparation, are insensitive to the moisture in the air or the coated surface, and have a number of advantages over conventional polyurethane materials.
Novel hydroxyurethane modifiers (HUM) for cold-cured epoxy composite materials were synthesized. It is established that the compositions with HUM demonstrate a significant increase in the speed of the curing process, a nontrivial increase in abrasion resistance, and a marked improvement in strength properties.
The HUM, which possesses a wide range of hydrogen bonds, is embedded in an epoxy polymer network without a direct chemical interaction. Advanced crack-resistant coatings based on water dispersion of chlorine-sulphopolyethylene (CSPE, Hypalon®) vulcanized by a Mannich alkali (MA) water solution were obtained.
Application of MA as a CSPE structure component makes it possible to produce a vulcanized net of saturated polymer, and thus to develop an ecologically safe, impenetrable crack-resistant coating for any substrata (concrete, metal, plastic, etc.).
The coatings can be applied in the aircraft, automotive, shipbuilding, paint, and varnish industries, civil engineering, and so on as a corrosion-resistant material. The optimal coating composition and its mechanical properties have been studied.
A new type of epoxy composition with nano-heterogenic structure based on epoxy resin, liquid rubber, amine hardener, and fluorinated surfactants of various chemical structures were developed.
Formation of nano-heterogenic systems with fluorinecontaining surface-active additives of optimal chemical composition is an effective method of obtaining advanced coatings (Advanced Polymer Concretes and Compounds).
It has been shown that the mechanical properties and chemical resistance of nano-coatings are significantly higher with the use of surfactants, with the most effective surfactants being those with linear molecules containing carboxyl groups.
Acid-resistant building materials based on liquid glass find wide application in construction as silicate polymer concretes, filler pastes, putties, and so on (Advanced Polymer Concretes and Compounds).
A significant increase in strength, heat, and fire resistance of the silicate matrix was achieved by introducing tetrafurfuryl esters of orthosilicic acid (tetrafurfuryloxisilane, or TFS) in the composition. Introduction of the TFS additive in the binding medium leads to the formation of the cross-linked polymer.
The resulting nanostructured binder provided the basis for obtaining the acid-resistant silicate polymer concrete and void fillers. The last chapter is devoted to the development of an advanced waterborne environmentally friendly and weather-resistant fire-protective coating composition.
The composition consists of a combination of intumenscent organic and inorganic particles, an inorganic water glass, a water dispersion of chlorine-sulphonated polyethylene, and pigments and/or silicon dioxide.
These fire-protective coatings are intended for indoor and outdoor application to flammable substrates such as wood, plastic, and so on. Standard laboratory tests of this coating composition have confirmed its excellent fire-protective of properties, corresponding to Class A fireproofing.
The series of fire and heat-retardant coatings can have applications in the construction of wooden items and structures, plastic pipes, facings, and so on.
The major results of the works presented in this monograph were primarily published in the journal Scientific Israel Technological Advantages (http://www. sita-journal.com) from 2000 to 2013.
Download Advanced Polymer Concretes and Compounds by Oleg Figovsky and Dmitry Beilin in PDF format for free.