Study On The Mechanical Properties Of New Epoxy Resin Concrete Axial Tensile Members

Epoxy resin concrete is a kind of polymer concrete,it is characterized by high strength,good impact resistance,and also has good wear resistance,water resistance,chemical resistance,fire resistance and frost resistance,as a new type of building material,As a new type of building material,it has been valued and developed in recent years.At present,domestic and foreign scholars have made preliminary achievements in the research on the performance of epoxy resin concrete,however,the existing research focuses more on the analysis of compressive performance,but less on the analysis of tensile performance,And due to the different properties of epoxy resin concrete and the lack of relevant basic theory research,it is mostly confined to structural reinforcement in engineering construction,and has not been widely used as a complete structural material.In this paper,a new type of epoxy resin concrete which can be used as a structural material is used as a research object to study the tensile properties.firstly,the material properties and tensile properties of components are studied by axial tension test,secondly,ABAQUS finite element software is used to simulate and analyze the tensile members,and the results are compared with the test results.Finally,on the premise of basic assumptions,through the mechanical analysis method,combined with the experimental research and theoretical analysis results of the stress process of epoxy resin concrete axialtension members,the bearing capacity calculation formulas of members in different states are proposed.Research shows that the tensile strength of epoxy resin concrete is 2.6MPa,the modulus of elasticity is 10000 MPa,Poisson’s ratio is 0.26,the ordinary concrete with the same compressive strength has a tensile strength of 2.01 MPa,an elastic modulus of 30000 MPa,and a Poisson’s ratio of0.2,it embodies the better tensile properties of epoxy resin concrete;reinforced epoxy resin concrete shaft tensile test piece is a single-seam failure type,which is different from multi-seam damage of ordinary reinforced concrete.and with the increase of the length of the axial end of the shaft,the ultimate tensile force and cracking strain of the epoxy resin concrete specimens increase,which reflects the material uniformity and good integrity of the epoxy resin concrete.The theoretical calculation value of the formula is compared with that of ABAQUS,which proves that the formula provided in this paper is reliable for the design of epoxy resin concrete axially axial tension members.The innovation of this paper is that through the study of mechanical properties of new epoxy resin concrete axial tension members,the tensile failure mechanism of the new epoxy resin concrete and the theoretical basis for the design of structural members are improved.it provides a theoretical basis for further study of the mechanical properties and failure states of other components and different structures of epoxy resin concrete.