Experimental Study On Flexural Behavior Of Inorganic Polymer Concrete Beam With Basalt Fiber Reinforced Plastics

In recent years, the problem of durability of reinforcement in reinforced concrete structure in the corrosion environment and reducing the weight of reinforced concrete structures was serious, which more and more become a hot issue in engineering. In addition, the restriction that the weight of concrete structure limits its application in engineering is important. An effective method is that Fiber Reinforced Polymers namely FRP reinforcement instead of ordinary reinforcement in concrete structure. On the other hand, the problem of durability of concrete in the corrosion environment more and more was concerned. So this paper present the structure system of basalt reinforcement inorganic polymer concrete, which consist of basalt rebar corrosion resistance and light quality that instead of reinforcement and inorganic polymer concrete that instead of ordinary concrete. This paper conducted the following research for this new system.(1) Based on the club compressive strength test, elastic modulus and microcosmic performance test to inorganic polymer concrete and plain concrete, draw a conclusion that the 3d cube compressive strength of the inorganic polymer concrete and ordinary concrete reached 48% of the 28d's,and the 7d's reached 68% and 66% respectively, the elastic modulus of the inorganic polymer concrete is 3.21*104N/mm2 and the bonding performance of inorganic polymer gel material is well.(2) Based on the flexural performance of normal section to two basalt reinforcement inorganic polymer concrete beam, draw a conclusion that the data of failure mode of basalt inorganic polymer reinforced concrete beam is compression damage. its curve of load-displacement is no the yield stage that inorganic polymer curve liner until component damage after concrete cracking. In addition, comprehensive analysis of the components of normal section flexural performance, which attain the date that the stress of reinforcement and concrete strain change with load, crack propagation process.(3) Using ABAQUS to do nonlinear finite element analysis the flexural performance of normal section for the basalt inorganic polymer reinforced concrete beams, calculate the load-deflection curve, the load-strain curve of different parts of basalt rebar, compare with result of test and verify the rationality of the results to each other.