EXPERIMENTAL RESEARCHES OF DEFORMATIONS IN REINFORCED CONCRETE AND STEEL FIBER REINFORCED CONCRETE IN THE ROAD GUTTER
DOI:
https://doi.org/10.31713/budres.v0i35.227Abstract
The study of new materials and constructions with improved parameters of strength, crack resistance, bearing capacity and longer operating life than standard elements is an actual problem of building science.
The article presents the results of experimental researches of deformations in reinforced concrete, steel fiber reinforced concrete and steel fiber rebar reinforced concrete in the road drainage gutters at short-term re-loads.
The level of force application was ηcyc = 0,6 of the destructive values. The experimental part of the research conducted at the construction laboratory of Lutsk NTU. The methodology of experimental research is presented. It is determined that in the drainage trays that are made of steel fiber reinforced concrete under repeated loads occurs significantly less deformations in comparison with similar constructions made of ordinary concrete reinforced or combined reinforced elements (steel fiber rebar reinforced concrete).
Material deformations in "2SFBp" samples under the repeated loads during tenfold loading of maximum stress was in the 5...6 times less than in standard reinforced concrete constructions («2ZBp»). Therefore, the fracture toughness of steel fiber concrete gutters and their lifespan will be improved than in typical reinforced concrete constructions.
