Influence of water-to cement mass ratio on cement composites

U ovom radu ispitan je utjecaj litijevih soli na brzinu vezanja aluminatnog cementa (AC). Praćen je utjecaj različitih vodocementnih faktora na čvrstoće cementnih kompozita. U pripravljenim cementnim kompozitima određeno je vrijeme vezanja i izmjerene su čvrstoće na tlak. Litijev karbonat, Li2CO3 i litijev nitrat, LiNO3 djeluju kao ubrzivači vezanja aluminatnog cementa. Dodatkom litijevih soli moguće je pripraviti brzovezujući i brzootvrdnjavajući cementni materijal dobrih mehaničkih svojstava.This paper examines the influence of lithium salts on the rate of aluminous cement binding (AC). The influence of various water-to-cement ratios on the strenght of cement composites was observed. In the prepared cement comsposites, the binding time was determined and compressive strenght was measured. Lithium carbonate, Li2CO3 and lithium nitrate, LiNO3 act as alumina cement binding accelerators. By adding lithium salts, it is possible to make fast-curing and fast-fixing cementitious materials of good mechanical properties