Long-effective corrosion-prevention physical resistance-reducing agent

Abstract

The invention discloses a long-effective corrosion-prevention physical resistance-reducing agent which aims at solving the problem that traditional bentonite can not be applied to dry and frozen soil. The long-effective corrosion-prevention physical resistance-reducing agent comprises the following components in percentage by weight: 15- 50 percent of water-absorbing resin gel, 15-60 percent of graphite as a conductive material, 5-30 percent of active carbon, 10-60 percent of sodium bentonite and 15-50 percent of conductive cement. The long-effective corrosion-prevention physical resistance-reducing agent achieves the following technical targets that the specific resistance of the resistance-reducing agent (dry state) is not greater than 0.95 ohm.m, and the specific resistance of the resistance-reducing agent (wet state) is not greater than 0.35 ohm.m; the pH value is from 7.5 to 9.5, and the water absorbing capacity is not less than 50 percent; the corrosion rate of the pure resistance-reducing agent on round steel is not greater than 0.019 mm / a, and the corrosion rate of the pure resistance-reducing agent on flat steel is not greater than 0.016 mm / a. The long-effective corrosion-prevention physical resistance-reducing agent can be prepared under normal temperature and pressure, and has the advantages of cheap and easily acquired raw materials, high performance, long effective period, low cost, corrosion prevention, no toxicity, no pollution, great polytechnical and economical benefits and the like.

Description

technical field [0001] The invention relates to a resistance reducing agent, in particular to a grounding resistance reducing agent that can be widely used in grounding devices such as electric power, telecommunications, construction, broadcasting, television, railways, highways, aviation, national defense engineering, metallurgical mines, etc., and protects the grounding body Long-acting anti-corrosion physical drag reducing agent to prevent corrosion. Background technique [0002] In the research and development of grounding resistance-reducing materials, graphite powder or salt and charcoal were used as resistance-reducing agents in the early days. Because graphite and table salt are soluble electrolytes, they will gradually be lost under the immersion of rainwater and groundwater in the ground, and the chloride ions in the table salt have a corrosive effect on the grounding body, so they will be eliminated soon after use. [0003] In the early 1970s, Japanese scientists...

AI Technical Summary

Problems solved by technology

But the traditional bentonite can not be well applied under the geological conditions of drought and permafrost

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