Получение клинкерного кирпича на основе минерального сырья Республики Беларусь

Mass compositions for production of dense ceramics, in particular clinker bricks based on low-melting clays, loams, low-calcined chamotte and cullet glass have been developed. A positive effect of finely ground low-ash chamotte obtained by heat treatment of low-melting clays at 1000 °C, which contributes to the expansion of the sintering interval of materials, is established. The complex use of polymineral clays, low-calcined chamotte and loams allows obtaining dense-looking material with a water absorption of 3–5 %, which is due to the effective action of fine-dispersed amorphous silica contained in loam. Dense material with a less than 5 % water absorption, frost resistance of 120–200 thermal cyclings and mechanical compressive strength of 41–47 MPa was produced by calcination of the mentioned materials at 1150 ± 10 °C.