Simulated grey brick

Abstract

The invention discloses a simulated grey brick which is composed of an upper layer and a lower layer, wherein the lower layer is prepared by mixing and pressing cement, sand, black powder and water; and the upper layer is prepared by mixing and pressing cement, sand, rock powder and water. The simulated grey brick uses local materials, and utilizes the rock powder instead of the black powder, thereby better utilizing the waste materials, lowering the production cost, reducing the damage to the environment, and enhancing the competitive power of the product.

Description

technical field [0001] The invention relates to imitation blue bricks. Background technique [0002] Traditional blue bricks are fired bricks, which are shaped by hand, and the bricks are dried and fired in earthen kilns. The main raw material of ancient blue bricks is clay. After the clay is mixed with water, it is extruded and shaped, and then baked in a brick kiln until it is cooled by water (about 1000 degrees), so that the iron in the clay is not completely oxidized, so that it has better weather resistance and water resistance. and other characteristics. [0003] The hardness of blue bricks and red bricks is almost the same, but the cooling method is different after firing, while the red bricks are naturally cooled, which is simpler. Trouble, so now the production is relatively small. Although the strength and hardness are similar, the performance of blue bricks in anti-oxidation, hydration, atmospheric erosion, etc. is significantly better than red bricks. It is us...

AI Technical Summary

Problems solved by technology

[0006] However, the commonly used imitation blue bricks are concrete structures, which are made by mixing cement, sand, black powder and water, but the cost of black powder is high, and the production process will cause damage to the environment.