Iron tailing high-performance water permeable brick and preparation method thereof

The invention provides an iron tailing high-performance water permeable brick and a preparation method thereof. The iron tailing high-performance water-permeable brick comprises the following components in parts by weight: 78-88 parts of sandstone improved iron tailings, 10-15 parts of cement, 2-8 parts of fly ash and 0.3-0.8 part of a cement polymer reinforcing agent, and the water-binder ratio is 0.20-0.30. The preparation method comprises the following steps: S1, designing an iron tailing pavement water-permeable brick material: considering the economic transportation distance of the iron tailing water-permeable brick, determining that the use environment is a hot-summer and cold-winter region, bottom layer and surface layer materials of the high-performance iron tailing water permeable brick are designed according to A-level water permeable requirements; s2, replacing the aggregate with the iron tailings and improving, namely removing impurities from the iron tailings, and then cleaning and making sand. T