The consumable absorber method is use to obtain porous ceramic based on kaolin, talc, and quartz-feldspar raw materials from Amur Oblast. Wastes from rubber mechanicals, crop grains, and woodworking were used as a pore-forming additive. The following were determined for the samples obtained: the open porosity, water absorption, specific surface area, compression strength, and water permeability. The apparent density, total and closed porosity, specific volume of the pores, and the elastic modulus were calculated.Key words: aluminosilicate porous ceramic, porosity, consumable additives, use of industrial wastes.In recent years researchers have become increasingly interested in porous materials [1]. The reason is that such materials are widely used in industry as working elements in filters for purification and separation of liquids and gases, carriers for catalysts, membranes with partial permeability, electrodes, fuel and electrolytic elements, and insulation elements. Ceramics occupy a special place in a long list of materials, including metals and organic compounds [2]. Depending on the purpose of the ceramic, the prescribed properties are obtained by using the appropriate raw materials and additives as well as the particulars of the technology, which in turn must be simple and cost-effective.The object of investigation is aluminosilicate ceramic from the mineral deposits in Amur Oblast with the addition of various pore-formation materials. The objective of the present work is to obtain a porous aluminosilicate ceramic using technical and agricultural wastes to make ceramic filters.The consumable additive method with dispersion and formation of a mixture -55% kaolin and 45% quartz-feldspar as the raw materials together with pore-forming additives -followed by sintering was used to make the samples [3]. The mixture was formed under pressure 3 MPa by unilateral pressing of the mix. The material was formed into a cylinder (18 mm in diameter and 25 ± 0.5 mm high) to investigate strength and a disk (30 mm in diameter and 5 ± 0.5 mm high) to investigate water permeability.Before kilning the samples were dried for 48 h at room temperature and then heated in a muffle furnace to 300°C at the rate 1 K/min; preliminary kilning was performed at 2 K/min to 900°C and final kilning at 2 K/min to 1220°C. After sintering the samples were allowed to cool in the furnace to room temperature.The following wastes were used as pore-forming materials: 1) rubber mechanicals; 2) crop grains obtained by grinding and pre-sieving through a 0.250 mm sieve;3) woodworking wastes, sieved through a 0.315 mm sieve.Samples of porous ceramic were obtained under similar conditions from a mixture of 10% kaolin with 90% talc and no pore-forming additives.The shrinkage was 20% in samples with crop grain wastes, 14% with rubber mechanicals, and 5% in steatite ceramic.A DRON-UM1 x-ray diffractometer (CuK a radiation) and the Debye-Scherrer method were used to study the ceramic samples.
