Electrically conductive slag concrete

Abstract

A steel slag conductive concrete comprising silicate cement, steel slag and water, the weight percentage is, comprising silicate cement 10-60, steel slag 20-80, water 8-25. The invention can be widely applied to the fields of industrial antistatic, electric appliances ground work, electromagnetic interference screening and reinforced bar cathode protection.

Description

technical field [0001] The invention belongs to the technical field of concrete, and particularly relates to the technology of conductive concrete materials. Background technique [0002] Concrete is the most widely used building material in civil engineering. Ordinary concrete is a poor conductor of electricity. By mixing a certain amount of conductive components into ordinary concrete, its conductivity can be improved, thereby becoming a conductor with certain electrical conductivity. [0003] Conductive concrete mainly relies on the mutual contact of the conductive phase materials in the concrete to conduct electricity. Therefore, the application of conductive materials with various electrical properties and different particle sizes, lengths, shapes, gradations and dosages is the main way to change the conductive properties of concrete. technical measures. At present, the conductive components used to make conductive concrete at home and abroad mainly include graphite p...

AI Technical Summary

Problems solved by technology

[0004] (1). The performance requirements of both mechanics and conductivity cannot be taken into account

For the existing conductive concrete, when granular or powdery graphite powder, carbon powder, coke and steel chips are used as the conductive aggregate, due to its small aspect ratio, when the dosage is small, the conductive materials are difficult to contact each other , can not form a good conductive network, so its conductivity is poor; in order to improve the conductivity, when increasing the amount of conductive aggregate, on the one hand, due to the low strength of carbon black, coke, etc., on the other hand, due to the conductive aggregate The strong water absorption will increase the water demand (water-cement ratio) when concrete is mixed, so that the strength of concrete will be greatly reduced, and it is difficult to meet the needs of civil engineering for mechanical strength.

If carbon fiber is used as conductive aggregate, although a low dosage