Granite powdery slag brick and preparation method thereof

Abstract

The invention discloses a granite powdery slag brick and a preparation method thereof. The granite powdery slag brick comprises the following ingredients: 73-77 wt% of clay, 14-15 wt% of coal slag, 0.5-6 wt% of granite powdery slag, and 7-7.5 wt% of water. The preparation method comprises 6 steps of triturating, mixing, stirring, brick body molding, brick body cutting, air drying and baking. Under the condition that specifications of the brick bodies are same, the granite powdery slag brick disclosed herein has an average value of the compressive strength of 8.5 Mpa, satisfying the national prescribed compressive strength of bricks. Accordingly, according to the invention, the pollution problem of granite powdery slag is solved, the purpose of changing waste into valuables is achieved, and the amount of clay is reduced, thus the national requirement of protecting the environment is satisfied.

Description

technical field [0001] The invention relates to a granite powder slag brick and a preparation method thereof. Background technique [0002] Lingnan Township, Shangyu City, Zhejiang Province is a mountain city surrounded by mountains on all sides. Most of the stones on the mountain are granite, and the granite needs to be cut to meet people's use requirements. However, a lot of powder slag will be produced during the cutting process. It cannot be used as the coarse and fine aggregate of concrete, so it is dumped into the farmland, which not only pollutes the environment, but also causes a lot of waste, because nearly 30% of the granite powder slag will be taken away by the cooling water during the cutting process. In addition, there is a brick factory in Lingnan Township, Shangyu City, Zhejiang Province. At present, clay bricks are still mainly used, and the state advocates reducing the use of clay. Contents of the invention [0003] The object of the present invention is ...

AI Technical Summary

Problems solved by technology

[0002] Lingnan Township, Shangyu City, Zhejiang Province is a mountain city surrounded by mountains on all sides. Most of the stones on the mountain are granite, and granite needs to be cut to meet people's use requirements, but a lot of powder slag will be produced during the cutting process. It cannot be used as coarse and fine aggregate for concrete, so it is dumped into the farmland, which not only pollutes the environment, but also causes a lot of waste, because nearly 30% of the granite slag will be taken away by the cooling water during the cutting process