Influence of Steel Fibers Content on Selected Mechanical Properties - Experimental Tests

The continuous development of construction due to the great needs society and industry, need build newer more durable buildings have meant that scientists all time look for new opportunities improve quality materials used in this field. Above all, concrete, as material commonly construction, has been subject research many years order properties. Already antiquity there were first attempts modify building with fibers. Initially, they organic However, patent dates from 1874, when A. Bernard patented idea strengthening concrete steel filings [1]. Then, made strengthen long fibers, which was done by H. Alfsen 1918. Further researches led N. Zitkiewic test strength impact toughness use pieces mild wire [2]. Steel fibers Romuladi Baston 1963. In paper a comparative analysis selected mechanical properties fiber-reinforced e.g. compressive Young's modulus, presented. It checked how value modulus change depending on content Three types samples tested: 1 - 2 – containing 0.25% 3 0.50% As shown, greater number is not directly proportional increase its or modulus.