A kind of preparation technology of ion conductive concrete

Abstract

The invention discloses a preparation process of ion-conducting concrete, which comprises the following steps: (1) preparing a concrete test piece; (2) demoulding and curing; (3) penetrating the test piece; (4) applying waterproof paint. Compared with the traditional conductive concrete, the ion-conductive concrete provided by the embodiments of the present invention has the advantages of lower resistivity, uniform and stable conductivity, and the like.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to the material technology of conductive concrete, in particular to a preparation process of ion conductive concrete. Background technique [0002] As a widely used building material, concrete has the advantages of convenient material acquisition, low price, high compressive strength, and good moldability; but it is a poor conductor of electricity. In order to make it conductive, the technology of improving the conductivity of concrete by adding different conductive media to ordinary concrete and turning concrete into a good conductive material has become the mainstream idea in the research and development of conductive concrete. [0003] Conductive concrete with good conductivity has low resistivity, good heating performance, pressure sensitivity and good electromagnetic shielding performance, and is widely used in snow and ice removal, indoor heating, electromagnetic shielding an...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned traditional conductive concrete has certain defects: the steel fiber conductive concrete will corrode with the increase of concrete age, and its resistivity will gradually increase. Some studies have shown that the resistivity of steel fiber concrete at the age of 1 is relatively rigid. It was more than 10 times larger when it was finished

The following difficulties exist in the preparation of ion-conductive concrete: ① There are many capillary pores inside the concrete, which are very small and discontinuous, making it difficult for the electrolyte solution to be evenly distributed inside the concrete, and the distribution of the electrolyte solution inside the concrete directly determines The conductivity of ion-conducting concrete is improved; ②Due to the continuous hydration of concrete cement and the evaporation of water inside the concrete, the concentration of the electrolyte solution penetrating into the concrete increases accordingly, which affects the conductivity of concrete over time; ③ Improper selection of electrodes may cause electrochemical corrosion and increase the resistivity; at the same time, improper selection of the solution will affect the mechanical properties of the concrete itself

Images