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CONFERENCE PROCEEDINGS
6th INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2018 , 2018.y., pp. 265-272


THE EFFECT OF NANO SIO2 ON THE STRENGTH OF UHPC
 
DOI: 10.14415/konferencijaGFS2018.025
UDC: 66.017/.018:666.972.16
CC-BY-SA 4.0 license
Author : Janković, Ksenija; Stojanović, Marko; Bojović, Dragan; Lončar, Ljiljana
 
 Summary:
 Research on the application of nano materials in cement composites in the world began in the early 21st century. When preparing UHPC, nano SiO2 was used. The aim of the research is to determine the influence of nano-silica, as partial substitution for cement on the mechanical properties of UHPC. The results of the comparative testing of concrete in fresh and hardned state are presented without any substitution of up to 2% of cement with nano SiO2. In order to determine the effect of the nano-silica on the increase in compressive strength and flexural strength, the specimens which were curing in water were tested at the age of 2, 7 and 28 days.
 
 Keywords:
 nanosilica, UHPC, compressive strength, flexural strength