MODIFICATION OF FINE-GRAINED CONCRETE ADDITIVES CRUSHED PLASTIC

Abstract

Fine concrete is one of the most demanded materials in modern construction. Properties of fine-grained concrete are defined by the same factors as that of concrete large aggregate, but there are a number of reasons: increased the consumption of cement, more homogeneity, high porosity, low Flexural strength, tensile and shock loads. Of particular interest from the point of view of improvement of consumer properties of fine-grained concrete, is it modifying additives of polymeric materials, including additives shredded plastic. An assessment of the capacity of use in the fine aggregate concrete plastic waste: polyvinyl chloride chips that are formed in significant quantities in the production of plastic windows and shredded scraps of plastic pipes. The studies confirm that the modification of fine-grained concrete, plastic-ment of waste in the form of polyvinyl chloride chips or rings from scraps of plastic pipes in the amount of 0,5-2 mas. % increases its bending strength and compression. The introduction of the chip set, which limits contributes to a slight decrease of density of fine-grained concrete, and the introduction of the rings has no significant effect on this parameter.