ՓԱՐԱՔԱՐԻ ՀԱՆՔԱՎԱՅՐԻ ԵՐԿՋՈՒՐ ԳԻՊՍԸ ՈՐՊԵՍ ՀՈՒՄՔԱԽԱՌՆՈՒՐԴԻ ԲԱՂԱԴՐԻՉ ՀԱՏՈՒԿ ԸՆԴԱՐՁԱԿՈՂ ՀԱՎԵԼԱՆՅՈՒԹԻ ՍԻՆԹԵԶՄԱՆ ՀԱՄԱՐ

ՇԻՆԱՐԱՐԱԿԱՆ ՆՅՈՒԹԵՐ

Abstract

Special expanding additive developed on the base of cement dust, captured from the furnace exhaust gases and clay gypsum, via the unstable composition of the latter, has a variable impact on the deformation capacity of the cement. The study confirmed, that the content of gypsum dihydrate of Parakar deposits has more stable composition. The possibility of special expanding additive synthesis on the base of cement production waste and gypsum stone has revealed through calculation. It was found, that a certain proportion of the mentioned components, provides the desired phase composition for the additive, which enabled to obtain unshrinkable cement.