Effect of new Filler Addition on the Mechanical Properties of Concrete

This work summarizes the results of chemical modification of concrete based on portland cement by zeolite, metakaolin and micrometakaolin addition in 5 wt.% of concrete amount into the mixture as a filler. The main purpose of this study was to characterize directly influence addition of new commercial fillers on concrete mechanical properties. The recipe of concrete was basic and contained three parts of aggregates: 0.125-0.250; 0.250-0.500 and 0.500-1.000 mm. To characterize the compounds SEM and LM observations, chemical composition and grain size test was widely done. Samples of concrete were characterized by compressive strength and bending tests after 1, 7, 14 and 28 days of curing. Obtained results were compare with reference concrete samples without chemical modification. Research was proven that all chosen modifiers exhibit increase effect on the final mechanical properties of studied concrete samples and are very perspective for future application in civil engineering. (c) 2018