Nastich O. Properties and technology special, concrete, modified by iron.

Dissertation is devoted the decision of problem of increase of stability of properties of aerocretes due to the directed forming of structure cement a stone in direction of increase of his durability and adhesive bond with the hardening concrete of build constructions which is subject thermal influences. Such orientation of processes is provided by introduction in the complement of the dispersible system "Portland cement - Perhydrolum is water" of complex "a ferruginous matter is an oleate of calcium - hydroxide of sodium". Influence of this complex is studied on forming of phase composition and structure of the dispersible system. It is set that processes of gelation are in the system, at presence of in it the noted complex, predefined an increase on the initial stages of hardening of the system of amount of the physically constrained water with a subsequent synthesis in the products of hydratation and hardenings of minerals, which contain the far of the chemically constrained water, and also with theincrease of degree of union of this system with a hardening concrete. Composition of the probed dispersible system is developed and optimized, investigational physic-mechanical and adhesive behaviors of cement dough and to the stone, and also concrete mixture and concrete in the conditions of thermal influences. It is well-proven that introduction in the complement of the probed system "a ferruginous matter is an oleate of calcium - hydroxide of sodium" results in diminishing of amount of matter, formative gas - to Perhydrolum, increase and stabilizing, physic-mechanical, in the first turns adhesion, properties of concretes, that is expressed in the increase of durability of such concrete in the conditions of thermal influences. The features of technology are certain receipts of the developed concretes, which consist in the special order of mixing of components and increase of duration of their interfusion. Job performances are realized in the conditions of experimental-industrial productions.