Manufacturing process for electrode of cement based conductive composite material

Abstract

The invention discloses a method for manufacturing cement-base conducting composite materials, which belongs to the technical field of civil engineering. The method is characterized in that a plane stainless steel net is manufactured into a solid stainless steel net of different waveforms. When a cement-base conducting composite material specimen is manufactured, the wave crests of the electrodes of two solid stainless steel nets are arranged oppositely; and as the basal body of the cement-base conducting composite material can be made of cement paste, cement mortar or concrete, and the conductive phases incorporated can be carbon fiber, powdered carbon, steel fiber, steel scrap, plumbago or carbon nanometer tubes, the grid sizes of the plane stainless steel net, the waveforms, the cycles and the amplitudes of the waveforms of the electrodes of the solid stainless steel nets can be selected on a rational basis according to the types of the material of the base body and the conducting material besides considering the type and the size of the specimen in practical application. The invention has the advantages that the contact resistance between the electrodes and the base body can be reduced; the influence of polarization effect is reduced; the bonding effect of the electrodes and aggregate is improved; and the accuracy of the resistance test of the cement-base conducting composite material is improved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and relates to an electrode manufacturing technology, in particular to an electrode manufacturing method for cement-based conductive composite materials. Background technique [0002] Cement-based conductive composite materials are multi-phase composite materials with significantly improved conductivity, including cementitious cement paste, conductive Cement mortar and conductive concrete; At present, the conductive materials commonly used in cement-based conductive composite materials mainly include carbon fiber, carbon powder, steel fiber, steel shavings, graphite, and carbon nanotubes. Resistivity is a key physical quantity that characterizes the conductivity of materials. Accurate measurement of resistivity of cement-based conductive composites is an important prerequisite for studying the conductivity and electrothermal effect of materials. In addition to electronic conduction, cem...

AI Technical Summary

Problems solved by technology

The four-electrode method can reduce the influence of the electrode contact resistance on the measurement of the substrate resistance, but due to the use of more electrodes, it has a certain impact on the structure itself, and each sensor requires four lead wires, more wiring, and inconvenient on-site application

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