Abstract
This article presents the results of a study dealing with the use of a combination of recycled rubber from waste tires as a 100% substitute in the production of cement composites. Aggregate was replaced with recycled rubber in two ratios, namely the ratio of 50/50 and the ratio of 40/60 of the share of fraction 0/1 mm and fraction 1/3 mm. The designed formulas of cement composites were subjected to the tests of their physical and mechanical properties in order to determine the properties of the used recycled rubber combination. The tests included the consistency of the grain curve, mixing water properties, consistency of cement mortar, and strength characteristics (tensile flexural strength and compressive strength). The study presents results that are fundamentally different from the comparative samples and their use in the building industry; however, at the same time, they open up new possibilities of their utilization as a building material. Keywords: Composite; Concrete; Mixing water; Recycled rubber granulate; Waste tire DOI 10.35180/gse-2020-0028
Highlights
The development of the society and transportation is accompanied by an exponential increase in the production of tires
The decrease in the tensile flexural and compressive strength values is due to the high elasticity of rubber compared to the comparative sample with aggregate, which has no elastic properties
The test results further show that the use of recycled rubber significantly reduces the tensile flexural strength and compressive strength
Summary
The development of the society and transportation is accompanied by an exponential increase in the production of tires. It is associated with the production of waste tires [1]. In the EU alone, more than 300 million tires are scrapped every year [2] International organizations, such as the European Union, impose binding and pivotal targets on waste management, such as Directive 2018/851 on waste of the European Parliament and the Council [3]. Many studies have focused on the use of fly ash, slag, glass waste, paper fibres and other materials used in the building industry [4,5,6,7]
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