Experimental Study On Electrical Conductivity Of Graphite Concrete

Engineering materials is the material basis of structural engineering. At present, the basic engineering materials as the direction of development of concrete is mainly to improve their strength and by adding other materials to "intelligent". Concrete materials by adding conductive phase can be electrically conductive concrete, and it has heat and electricity capacity of perception and transformation, is a new "smart" concrete, the basic properties of a cutting-edge issues, carry out research work in this area is an important significance.This paper studied the electrical conductivity of concrete, is inexpensive and has many excellent physical and chemical properties of graphite as the conductive phase,Mainly to carry out the basic performance of its research. In this paper, the design of the two groups of concrete block, each group has the quality of content of the five types of graphite,Plain concrete, respectively, 5%, 10%, 15%, 20%. Conducting the first to study the mechanical properties of concrete, The second group to study the electrical properties and thermal characteristics. Through the experimental analysis of the data, Strength of concrete with reference to the general method of calculation than a means to study and measure the electrical conductivity of graphite conductive concrete media (graphite) admixture amount of the impact of the laws of its compressive strength. Given curing period, the volume of graphite admixture medium and stress and the relationship between resistivity, DC and AC power, respectively, as the impact of these relations, Results and theoretical analysis, interpretation of the mechanism of this phenomenon, Resistivity percolation threshold to determine the size. Made electrically conductive concrete for the electrical conductivity of graphite as the pressure-sensitive materials with the application of the best blending volume.Quantitative determination of the electromotive force and the relationship between temperature reached some conclusions of great significance for the future introduction of graphite to further the application of concrete provides a theoretical basis.