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INFLUENCE OF PIGMENTS ON MECHANICAL PROPERTIES OF COLORED CONCRETE

Influence of pigments on mechanical properties of colored concrete is presented in this paper. The paper is focus on the issue of dosing a powder pigment in the form of iron oxide into a prefabricated dry concrete mixture and its effect on mechanical properties of mixture. Based on the performed experimental tests, it follows that the proportion of added pigment has a fundamental influence not only on the resulting color intensity of concrete, but also on its mechanical properties. The measured values of flexural and compressive strength show a significant decrease with increasing amount of pigment contained.