At Perm National Research Polytechnic University (PNRPU), a method has been developed for producing ceramic bricks from woodworking waste. This was reported in the press service of the university.
Scientists have studied how technogenic burnout additives from industrial waste affect the properties of clay raw materials. Specifically, they considered hydrolytic lignin, which is formed during the processing of coniferous and deciduous wood, and scope, obtained as a result of wastewater treatment in the production of paper and cardboard.
Scientists evaluated the plasticity, density, shrinkage, and molding properties of preliminary compositions for the production of building materials.
We found that the addition of technogenic components - more than 25% - has a significant negative impact on the plasticity and molding properties of clay. The optimal content of hydrolytic lignin was 11-12% of the mass of clay raw materials and at a firing temperature in the range from 980 to 1,040 degrees, and scope - 13-14% in the range from 1,000 to 1,020 degrees.
The new solution allows the use of woodworking waste to improve the properties of ceramic building materials. The method also increases the scope of their reuse.
Earlierwww1.rureported that in Moscow theycreated expensive anhydrite from waste.
Read materials on the topic:
In St. Petersburg, a heat-insulating material was created from waste - foam glass
In Mordovia, a super-strong polymer was created from multi-layer packaging waste
In Novosibirsk, a building material based on recycled polymer waste was developed
Now on home
So far, "Emka" and "Mikrosha" are leading in the poll
The modernization will allow the plant to produce Garuda microphones and Obereg protective equipment faster
Despite sanctions, cargo traffic has remained at a record level for the second year
Surveyed doctors fear making wrong decisions when working with new technologies
In total, the enterprise will receive more than 400 units of modern equipment in 2026
Maneuvers involving the Project 21980 "Grachonok" vessel took place in the Baltic Sea
Ka-29 transport and combat helicopters were also involved in the maneuvers
Unstable connection in the capital has brought back demand for analog navigation and radios
Rosatom has started construction of infrastructure