MODIFICATION OF EPOXY BINDER FOR GLASS AND BASALT REBAR. THE RESULTS OF MECHANICAL TESTS

The paper presents the results of experimental studies on the modification of the epoxy binder LE-828 for the manufacture of glass and basalt rebar. The nano-size silica powder is used as a filler. The filler mass content ranged from 0 to 2 %. The influence of air bubbles on the mechanical characteristics of epoxy composite was evaluated. It is shown that the nano-disperse filler introduced in the binder leads to the increasing breaking stress and tensile strength by 33 and 34 %, respectively; the failure strain increased by 39 % at the filler mass content of 0.6 %.

Keywords:
polymer composite reinforcement, silicon dioxide, strength, deformation. 
УДК 531.7

MODIFICATION OF EPOXY BINDER FOR GLASS AND BASALT REBAR. THE RESULTS OF MECHANICAL TESTS