| 摘要 |
PURPOSE:To obtain a composition for grounding having high grounding resistance reducing property, causing no long-term deterioration, free from fear of being washed away and causing soil pollution, and also having the effect of preventing the corrosion of grounding member by constituting the composition of cement, carbon black, and dispersant. CONSTITUTION:The corrosion protective composition for grounding used at the time of burying ground copper plates, ground rods, etc., is obtained by blending (A) 60-80 pts. cement (as hardening agent), (B) 40-20 pts. carbon black (as conductive material), and (C) 0.5-5wt.%, based on the content of the component (B), of dispersant (e.g. beta-naphthalenesulfonic acid formalin condensation product). |
