The Study On Creep Behavior Of FRP Rebar Reinforced Furan Resin Concrete

FRP furfural resin concrete is a kind of anti-corrosive new engineering material with high strength, which has extensive application prospect. If the load were maintained, the deformation would increase to several times its elastic value. The creep behavior have greatly impacted the life span of furfural concrete structure. The calculation of creep has become necessary in structure designing and construction. In this paper, firstly the experience has performed about the bending and creep characteristic of non-FRP reinforced furan resin concrete beam and FRP reinforced furan concrete beam, and the creep curves are gained of the beams under different loads by four-point bending test method, and analysis is carried on the viscoelasticity nature, the result shows that FRP not only enhances the furan resin concrete beam's initial stiffness and strength, but also obviously reduced the creep strain of the beam. Secondly the creep model variables are determined through the least square method, the bending creep power law model Bruger model and Kelvin-Bruger model are separately built of non-FRP reinforced furan resin concrete beam and FRP reinforced furan concrete beam which is the basis of estimation of material's long term mechanics performance, the result shows that power law model and Kelvin-Bruger model can properly simulate its behavior ,and there are low relative percentage errors between actual and fitted data;at last, the effective method of simulating creep procedure by applying finite element method is used to predict its creep behavior the stress distribution and the strain distribution. It also has important project practical value to the FRP furan resin concrete structure design.