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Abstract:

Autoclaved aerated concrete (AAC) is commonly used in Europe due to its high utility values and high economic efficiency of the manufacturing process. In spite of the undeniable advantages of autoclaved aerated concrete, it has some less desirable qualities, therefore new solutions are being sought to improve its properties. One of the solutions aimed at improving the AAC fundamental parameters, resulting in the increased compressive strength and reduced water absorption, is the modification of its composition. The paper presents the effect of chalcedony on the phase composition and physical and mechanical properties of the autoclaved aerated concrete products. The modified product was subjected to X-ray phase analysis and to the tests of bulk density, water absorption and compressive strength. The investigation results presented hereby refer to the explanatory experiments. The research will be continued since the results reveal a clear improvement, albeit a slight one, of the AAC primary parameters. (C) 2016 The Authors. Published by Elsevier Ltd.

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The Influence of the Chalcedony on the Properties of Autoclaved Aerated Concrete