OBTAINING MIXED COMPOSITE CEMENTS BASED ON FERRITE CLINKER

The possibility of using ferritic clinker as a component binders with special performance properties is considered. Such types cements can solve the problems providing construction industry high-strength, resistant to external aggressive effects and relatively cheap binders. However, mechanism hardening curing cement stone obtained by clinkers complicated depends on number parameters.
 It was found that greatest thermal effect (more than 70%) during hydration resulting introduction various additives (lime gypsum stone) achieved up 4 hours from moment binder compositions are mixed means calorimetric analysis carried out developed compositions. That corresponds course induction period used Portland cement, at time occurrence primary contacts between crystalline hydrates sufficient mobility mass. In this interval, strength not high enough produced iron-containing products able fill space matrix, making it more dense less defective. 
 formation proceed in several stages: hydrolysis dicalcium ferrite initial stage reaction further interaction its portlandite 7 14 days mixing main formed iron-bearing ettringite hydrogarnet.
 study physical mechanical characteristics showed optimal content composition 5%. With given quantity, compression bending exceeds control sample 11.5%. input 15 30% into reduces 15-20%.