The Influence of Nanotechnogenic Raw Materials on the Drying Properties and Physical and Mechanical Properties of Ceramic Bricks

DOI: 10.37153/2618-9283-2020-1-29-34

Authors:  
Rubric:     Theoretical and experimental studies   
Key words: nanotechnologie raw material, water, a clay component, drying, temperature, voltage limit, physical and mechanical properties
Annotation:
 When obtaining ceramic bricks only from low-melting clay with the number of plasticity less than 12 without the use of thinners, there is a sharp drop in the limiting shear stress in the temperature range of 20-80oC, which contributes to the appearance of cracks and 
deformation curvatures of products. The use of nanotechnogenic raw materials as a thinner does not contribute to a sharp drop in the ultimate shear stress of the semi-finished brick in the temperature range of 2080oC, eliminates the appearance of cracks and increases the physical and mechanical performance of the finished product. Studies have shown that in order to improve the drying properties of the ceramic mass, the system «nanotechnogenic raw materials-fusible clay-water» is more homogeneous in relation to the system «clay-water». The analysis of the ultimate shear stress in hot forming conditions showed that the function of dependence of plastic strength on molding humidity PM =f (W,t) than the function of dependence of plastic strength on temperature PM =f(t) acquires special importance in this case.