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Advanced Polymer Concretes and Compounds by Oleg Figovsky

By Oleg Figovsky

One method of enhancing functionality attributes of creating buildings is to exploit a brand new type of materials―polymer composites. they've got detailed houses that mix excessive energy with gains of non-metallic fabrics. Polymer concretes (PC) seem to supply many percentages for generating new fabrics with wanted actual and mechanical features, similar to more suitable mechanical power, low permeability, and bigger chemical resistance. Advanced Polymer Concretes and Compounds offers the result of theoretical and experimental examine on effective development fabric composites in response to complex polymer binders.

This ebook examines the composition and houses of 2 new polymer concretes that experience capability to unravel a number of building concerns: rubber concrete according to a polybutadiene binder and silicate polymer concrete with an organo-silicate matrix. It examines the actual, mechanical, and technological homes of those desktops in addition to their habit in harsh environments and sturdiness and reliability matters. The authors describe a brand new environmentally pleasant polymer for monolithic business flooring coverings and coatings―nonisocyanate polyurethanes. in addition they talk about complex crack-resistant coatings in line with water dispersion of chlorosulfonated polyethylene, which are used on concrete, steel, and plastic for numerous commercial makes use of resembling airplane, cars, paint, and in shipbuilding and civil engineering.

The e-book covers a brand new kind of epoxy composition with nano-heterogenic constitution with strength for greater mechanical homes and chemical resistance, acid-resistant development fabrics in keeping with a nanostructured binder, and a sophisticated environmentally pleasant and weather-resistant fire-protective coating for indoor and outdoors program to flammable substrates. With a spotlight on novel concretes and protecting compounds for a number of environments, this booklet displays the most recent advancements within the quickly transforming into box of establishing fabrics engineering.

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However, the limited pot life of polymeric binder mix makes it difficult to obtain high-quality large products and structures made from epoxy, polyester, furan, and carbamide polymer concretes. Significant shrinkage of epoxy PC and large deformability of polyester PC lead, in some cases, to defects in the manufacturing and operation of products and structures made of these polymer concretes. The main limitation of the wide application of PCs is their relatively high material cost. This is why it is important to find the optimum technical–economic compromise [8].

17 State of the Art in Polymer Concrete The ultimate compressive strength of drying epoxy polymer concrete samples is about 92% of the control sample strength, which testifies to a high degree of reversibility of the process associated with the adhesive nature of the interaction between binder and filler. The maximal decrease in compressive strength (up to 40%) is observed in the polyester composites, which is caused by destruction of the bonds between polyester molecules and between binder and filler.

5 Pa · s. Estimation of Optimal Rubber Content It is obvious that the amount of low-molecular rubber in the RubCon composition permanently changes with the kind, dispersion, and amount of the filler; number and granular composition of the fillers, and so on. However, the evaluation of the optimal content of rubber in the composition is possible at the initial stage of the composition projecting. To solve this problem, an experiment was carried out. The variable quantity was the amount of low-molecular rubber in the composition (PBN); the goal functions were the compression and bending strength of RubCon.

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