TY - JOUR N2 - The results of testing the strength properties of experimental ceramic materials containing spending moulding sand after initial mechanical reclamation as a material for subsequent layers of the stucco composition were presented. Tests were carried out on spent moulding sands from various foundry technologies, i.e. sand with furfuryl resin and sand with hydrated sodium silicate. The spent, agglomerated moulding sand has undergone a crushing process. Next, the required granular fractions used for individual layers of the stucco material were separated. Ceramic samples, in which the spent moulding sand was a substitute for fresh silica sand in successive layers of the stucco composition, were prepared. As a reference material, identical ceramic samples were used but with all layers made from the fresh silica sand. Samples prepared in this way were used to determine the bending strength of ceramic materials in the temperature range from 20 to 900ºC. The obtained values of the bending strength have demonstrated that spent moulding sand can be used in investment casting with no adverse effect on the strength of ceramic materials. L1 - http://www.czasopisma.pan.pl/Content/110926/PDF/AFE%203_2019_01.pdf L2 - http://www.czasopisma.pan.pl/Content/110926 PY - 2019 IS - No 3 EP - 10 DO - 10.24425/afe.2019.127127 KW - Ceramic shell moulds KW - Spending moulding sand KW - Reclaimed sand KW - Lost wax process KW - Strength properties A1 - Angrecki, M. A1 - Kamińska, J. A1 - Jakubski, J. A1 - Wieliczko, P. PB - The Katowice Branch of the Polish Academy of Sciences VL - vol. 19 DA - 2019.06.17 T1 - Strength Properties of Ceramic Moulds Containing Spent Moulding Sand After Initial Reclamation SP - 5 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/110926 T2 - Archives of Foundry Engineering ER -