Zakorchemna N. Analysis of influence of technological damaged on the frost-resistance of build compos

Object - there are processes of change of damaged of concretes due to development of operating cracks in the conditions of the multiple freezing; a purpose is an increase of resistance of concr- ete to frosty destruction due to the change of him initial damaged by the use of rational extenders; methods are standard and spec al methods which include the elements of computational materials science; results – the model of technological crack is developed; the mechanisms of frosty destruction of build compos are analys- analysed; influence of amount of cycles of freezing and thawing is studied and will make extenders on damaged and frost-resistan- ce of concretes; novelty – the model of technological crack in wh- ich the change of forms of connection of water is taken into acco- unt on length of crack is offered; the mechanism of co-operation of cracks is rotined at freezing in them of free-drying; the change of damaged of cement stone and concretes is studied at their mult- iple freezing and thawing;introduction – sidewalk decorative tiles are made; use - in the production of concrete wares which are exp- loited in the conditions of the multiple freezing and thawing.