Oleg Figovsky's Advanced Polymer Concretes and Compounds PDF
By Oleg Figovsky
One approach of bettering functionality attributes of creating buildings is to take advantage of a brand new type of materials―polymer composites. they've got exact houses that mix excessive power with positive aspects of non-metallic fabrics. Polymer concretes (PC) seem to provide many probabilities for generating new fabrics with wanted actual and mechanical features, reminiscent of stronger mechanical energy, low permeability, and bigger chemical resistance. Advanced Polymer Concretes and Compounds offers the result of theoretical and experimental examine on effective construction fabric composites in keeping with complex polymer binders.
This booklet examines the composition and homes of 2 new polymer concretes that experience power to unravel numerous building matters: rubber concrete in accordance with a polybutadiene binder and silicate polymer concrete with an organo-silicate matrix. It examines the actual, mechanical, and technological homes of those computers in addition to their habit in harsh environments and sturdiness and reliability concerns. The authors describe a brand new environmentally pleasant polymer for monolithic business ground coverings and coatings―nonisocyanate polyurethanes. additionally they talk about complex crack-resistant coatings according to water dispersion of chlorosulfonated polyethylene, which are used on concrete, steel, and plastic for varied business makes use of akin to airplane, vehicles, paint, and in shipbuilding and civil engineering.
The booklet covers a brand new kind of epoxy composition with nano-heterogenic constitution with capability for higher mechanical homes and chemical resistance, acid-resistant construction fabrics in line with a nanostructured binder, and a complicated environmentally pleasant and weather-resistant fire-protective coating for indoor and open air software to flammable substrates. With a spotlight on novel concretes and protecting compounds for various environments, this ebook displays the most recent advancements within the speedily growing to be box of establishing fabrics engineering.
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Additional resources for Advanced Polymer Concretes and Compounds
This is why it is important to find the optimum technical–economic compromise . 6. In conclusion, it should be emphasized that the main advantage of polymer concretes is high chemical resistance characterized by long-term resistance to corrosive environments. Composition based on polymer binders are the most promising for use in these conditions. Improving the efficiency of polymer composites is possible by applying cheaper binders and eliminating waste during chemical production by reducing the components used, decreasing the toxicity of polymeric composition, and increasing the degree of polymerization .
For this purpose, we have undertaken experimental research at a number of preset values of the normal stresses and temperature durations of sample destruction. Prismatic beam samples (30 × 60 × 700 mm) of RubCon were tested for a cross, so-called pure bend, by two equal concentrated forces symmetrically located at an average third of the samples’ span and simultaneous temperature influence. 5 MPa. For creation of increased temperatures, special spiral heating elements were placed at the sides of the sample.
Water penetrates between macromolecules through micropores and fine capillaries and irreversibly changes the chemical structure of the polymer binder. Such changes result in a lowering of physical–mechanical properties of the material, its destruction, cracking, and so on. So physical and mechanical properties of polymer concrete products and structures depend heavily on the humidity of the operating environment. Following are the results of long-term experimental research on the effect of a water environment on the physical and mechanical characteristics of polymer concretes .
Advanced Polymer Concretes and Compounds by Oleg Figovsky