Influence of prescription factors on the deformative properties of concretes of combined composition with basalt fiber

Abstract

As of today, usage of basalt fiber in the production of fiber-reinforced concrete is one of the most promising trends. In order to improve the deformative properties of concretes of combined composition with basalt fiber, we studied the effect of recipe factors, namely, percentage of fiber reinforcement and percentage of expanded clay content in relation to granite by volume. In total, 18 series of basic samples of standard size were manufactured and tested, 54 prisms with dimensions 150x150x600 mm for axial compression and tension tests. Also, calculations of deformative characteristics were carried out depending on the recipe factors; all calculations were carried out with the method of mathematical planning of the experiment – a full-factor experiment. Based on the results obtained, it was concluded that the most effective way is to use basalt fiber in the amount of 4.5% along with using coarse aggregate containing expanded clay in relation to granite in the amount of 60% by volume.