Subject and purposes. Basic terminology. Technogen products – synthesis, phasecomposition and structure. Diagnosis- and investigation- methods of phasecomposition and structure. Ceramics – phasecomposition and structure characteristics. Crystallizational- and some glass-defects. Glassceramics and petrurgical materials – phasecomposition and structure characteristics. Portlandcement clincer and hardened cement paste – phasecomposition and structure. Industrial wastes – blastfurnace slag, fuelash and fuelslaf et.all.- phasecomposition and structurical specialities.