Influence of Mineral Additive Type on the Behaviour of Mortars with Calcium Aluminate Cement : Undergraduate Thesis

Mort je homogena smjesa veziva, vode, agregata i raznih dodataka. Da bi mu se poboljšala tražena svojstva, dodaju se razni dodaci za koje postoji ekonomska ili tehniĉka opravdanost. U općem dijelu rada su detaljno opisane sve komponente morta i njihov utjecaj na cementne kompozite, a posebna pažnja je obraćena na aluminatni cement kao referentnu točku ovog rada. U eksperimentalnom dijelu rada analizirani su rezultati ispitivanja mortova od kalcij aluminatnog cementa s mineralnim dodacima u odnosu na isti mort bez dodataka. Kao mineralni dodaci korišteni su silikatna prašina, metakaolin i leteći pepeo. Na svježem mortu je provedeno ispitivanje obradivosti, a na očvrsnulom mortu ispitivanje savojne i tlačne čvrstoće, gustoće i brzine ultrazvuka. Svi dobiveni rezultati su prikazani tablično i analitički.Mortar is a homogeneous mixture of binder, water, aggregates and various additives. In order to improve its required properties, various additives are added for which there is economic or technical justification. In the general part of the work, all mortar components and their influence on cement composites are described in detail, and special attention is paid to aluminous cement as a reference point of this work. In the experimental part of the work were analysed the results of mortars with mineral additives in relation to mortar without additives. As mineral additives were used silicate dust, metakaolin and fly ash. On fresh mortar was performed workability test, and on hardened mortar were tested flexural and compressive strength, density and speed of ultrasound. All results are presented in tables and graphs