Multi-solid waste-based artificial stone and preparation method thereof

By preparing multi-solid waste-based artificial stone and utilizing spherical particles of iron tailings powder, fly ash and steel slag powder in combination with activators and enhancers, the problems of low solid waste utilization and insufficient artificial stone performance were solved, achieving efficient and environmentally friendly resource utilization and performance improvement.

CN120574011BActive Publication Date: 2025-09-26TIANJIN METALLURGICAL SPECIAL MATERIALS CO LTD +2
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Patent Information

Application Number
CN202511099431.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2025-09-26
Estimated Expiration
2045-08-07

AI Technical Summary

Technical Problem

In the existing technology, solid wastes such as iron tailings and fly ash are not fully utilized, and the artificial stone preparation process has problems such as low resource utilization, long production cycle, and insufficient mechanical properties, resulting in environmental pollution and waste of resources.

Method used

Iron tailings powder, fly ash, steel slag powder and water are mixed to form spherical particles, activators and reinforcing agents are added, and multi-solid waste-based artificial stone is prepared through pressing, molding and curing. The activator is used to activate the mineral activity, and the reinforcing agent is used to improve the hydration reaction rate and strength.

Benefits of technology

It achieves efficient utilization of solid waste, reduces production costs, improves the toughness, strength and wear resistance of artificial stone, reduces environmental pollution and shortens the preparation cycle.

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Abstract

The present invention provides a multi-solid waste-based artificial stone and a preparation method thereof, comprising the following steps: Step 1 is to uniformly mix iron tailings powder, fly ash, steel slag powder, and water, and then crush and roll to obtain spherical particles; Step 2 is to uniformly mix the spherical particles, steel slag powder, fly ash, cement, an activator, and a reinforcing agent with water to obtain a wet material; Step 3 is to press and shape the wet material, and cure it to obtain the multi-solid waste-based artificial stone. The multi-solid waste-based artificial stone of the present invention utilizes iron tailings, steel slag, and fly ash to prepare the artificial stone, which not only consumes a large amount of various solid wastes, reduces the amount of natural sand mined, reduces the amount of pollutant gas emissions generated by the sintering of cementitious materials, and improves the ecological environment; at the same time, after the action of the activator and reinforcing agent, the artificial stone can quickly undergo a hydration reaction in a short period of time to generate gel products such as silicic acid and aluminic acid, reduce the internal pore structure, and improve the density.
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