High alite-belite-calcium sulphoaluminate cementing material synthesized from industrial solid waste at low temperature and method: Fid-Bau Portal

High alite-belite-calcium sulphoaluminate cementing material synthesized from industrial solid waste at low temperature and method

MA SUHUA / HU YUEYANG / LI WEIFENG

Abstract

The invention discloses a high alite-belite-calcium sulphoaluminate cementing material synthesized at low temperature by utilizing industrial solid waste and a method, limestone, sandstone, fly ash, copper slag, phosphorus slag and gypsum are used as raw materials for raw material proportioning, and the high alite-belite-calcium sulphoaluminate cementing material is prepared through low-temperature calcination. In the raw material, industrial solid wastes such as the copper slag and the phosphorus slag are used as raw materials for raw material proportioning instead of being used as a mineralizer for external doping. According to the invention, industrial solid wastes such as the copper slag and the phosphorus slag are used as raw materials for raw material proportioning for the first time, and the high alite-belite-calcium sulphoaluminate cementing material is prepared by adopting a low-temperature calcination process, so that on one hand, resource utilization of the industrial solid wastes can be realized; and on the other hand, destructive influence on process equipment due to doping of a fluorite mineralizer can be avoided.

本发明公开了一种利用工业固废低温合成的高阿利特‑贝利特‑硫铝酸钙胶凝材料及方法，以石灰石、砂岩、粉煤灰、铜渣、磷渣和石膏作为原材料进行生料配料，经低温煅烧制备得到高阿利特‑贝利特‑硫铝酸钙胶凝材料。本发明生料中，铜渣和磷渣等工业固体废弃物作为原材料进行生料配料，而不是作为矿化剂外掺。本发明首次铜渣和磷渣等工业固体废弃物作为原材料进行生料配料，采用低温煅烧工艺制备得到高阿利特‑贝利特‑硫铝酸钙胶凝材料，一方面可实现工业固废的资源化利用；另一方面，可避免因掺萤石矿化剂对工艺设备的破坏性影响。

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