Ferro-nickel slag water permeable brick for pavements and preparation method of water permeable brick

The invention relates to the technical field of building materials and particularly relates to a ferro-nickel slag water permeable brick for pavements and a preparation method thereof. A great deal of ferro-nickel slag is mixed into the adopted raw materials, so that the resource utilization of the ferro-nickel slag is remarkable, the treatment cost is reduced, a problem that the ferro-nickel slag is difficult to treat is effectively solved, and the environmental pollution is reduced; a modifier gypsum is introduced, so that part of a gel material can be effectively substituted by virtue of active ferro-nickel slag micro powder; by controlling the total mixing amount of the ferro-nickel slag in the water permeable brick to be over 75% and adding an activator, the breaking strength and the compressive strength as well as various indexes of the prepared ferro-nickel slag water permeable brick for pavements are guaranteed, the national comprehensive utilization industrial policy of the waste resources are fulfilled, and a great deal of the ferro-nickel slag can be treated, and thus the production cost and the energy consumption are reduced.