Phosphogypsum base polymer iron tailing sand concrete and preparation method thereof

Abstract

The invention relates to phosphogypsum base polymer iron tailing sand concrete and a preparation method thereof. The phosphogypsum base polymer iron tailing sand concrete is prepared from the components in parts by weight: 30 parts of phosphogypsum, 5-15 parts of waste glass powder, 5-15 parts of pulverous coal, 5 parts of quick lime, 35-55 parts of cement, 35-36 parts of water, 90-110 parts of iron tailing sand and 0.8-1 part of a water reducer. According to the phosphogypsum base polymer iron tailing sand concrete and the preparation method thereof, the formulation is reasonable, design is simple, the waste glass powder and the quick lime are used for commonly activating the activity of the phosphogypsum, a cementing material with the same action as the cement is produced, part of the cementing material replaces the cement, and the purpose of reducing cement using amount to reduce environment pollution is achieved; the iron tailing sand replaces coarse aggregate stones and natural sand, and environment-friendly construction is achieved; raw materials are mostly solid waste, the solid waste is utilized, the cost is low, and good economic benefits are achieved; and the applicationrange of products is wide, the phosphogypsum base polymer iron tailing sand concrete can be used in building structure elements and non-structural elements with the low strength requirement, and the phosphogypsum base polymer iron tailing sand concrete can further be used in crack repair materials for concrete pavements and shop-front-added layers of the concrete pavements.

Description

technical field [0001] The invention relates to the field of solid waste comprehensive utilization and building materials, in particular to a phosphogypsum base polymer iron tailings sand concrete and a preparation method thereof. Background technique [0002] In recent years, my country has vigorously advocated the concept of green development in the construction industry, and ordinary concrete is a material used in large quantities in building structures, and its raw materials cause great environmental pollution during the production process. [0003] On the other hand, my country's industrial by-products such as gypsum, fly ash and tailings have a high stock of solid waste, and their comprehensive utilization rate is low, especially phosphogypsum, which is a solid waste produced in the process of preparing phosphate fertilizer and phosphoric acid. Calcium sulfate dihydrate. At present, the main method of storage of phosphogypsum in my country is open-air stacking. The lar...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a phosphogypsum-based polymer tailings sand concrete and its preparation method, which solves the problems of serious environmental pollution and low utilization rate of phosphogypsum in the production process of ordinary concrete raw materials