C30-grade all-solid-waste concrete and preparation method thereof

The invention provides a C30-grade all-solid-waste concrete and a preparation method thereof. Alkali residue carbide slag is utilized to synergistically excite a slag and fly ash composite cementing material to replace cement, and iron tailing sandstone is utilized to replace traditional sandstone. The all-solid-waste concrete is prepared from the following components in parts by weight: 52 to 156parts of alkaline residue, 26 to 78 parts of carbide slag, 182 to 234 parts of slag, 104 to 208 parts of fly ash, 170 to 190 parts of water, 460 to 510 parts of iron tailing sand, 1030 to 1150 partsof iron tailing ore and 1 to 3 parts of polycarboxylate superplasticizer. The new all-solid-waste concrete is prepared from various industrial solid waste residues, the 28d strength reaches 30 MPa orabove, waste is turned into wealth, the environment is protected, and meanwhile the production cost is reduced. 本发明提供一种C30级全固废混凝土及其制备方法，利用碱渣-电石渣协同激发矿渣-粉煤灰复合胶凝材料替代水泥，利用铁尾矿砂石替代传统砂石。全固废混凝土包括的组分按重量份计：52～156份的碱渣、26～78份的电石渣、182～234份的