Clay brick containing coal waste and preparation method thereof

摘要

The present invention relates to a process for the preparation of clay and the clay containing the coal tailings , 0.1 -3 is composed of 10 to 50 % by weight of coal tailings mixed soil and 50-90 % by weight of the particles of the pulverized mm, water absorption less than 10% , compressive strength 210 kgf / cm ² or more clays of the present invention brick can achieve the effect of the effect of resource conservation and waste disposal by recycling the waste while providing economical to apply the clay brick clay brick coal tailings generated in the tunnel excavation process and the process of coal mining and coal washability .