Environment-protecting high-pressure no-baking ardealite brick and its making process

Abstract

The environment-protecting high pressure no-baking ardialite brick is made with the material including sand in 100 weight powder, ardialite in 40-60 weight portions, solid phase adhesive in 10-20 weight portions, liquid phase adhesive in 0.1-0.5 weight portions, and sodium humate in 0.5-2 weight portions. The making process includes mixing all the material through stirring, molding the mixture in mold inside brick making machine at pressure not lower than 40 MPa, demolding and curing. The ardialite brick has high and stable strength, long service life and low cost.

Description

Technical field [0001] The present invention relates to a building brick, and in particular to an unfired phosphogypsum brick and a manufacturing method thereof. Background technique [0002] Clay bricks consume a large amount of non-renewable land resources and are no longer in line with national industrial policies. The building materials industry is looking for other alternative raw materials such as sandstone, coal gangue, fly ash, phosphogypsum, carbide slag, casting steel slag, etc. to produce building bricks. However, due to the raw material formula or production process, either the product quality is poor, or the cost is high, making it economically uneconomical. [0003] The Chinese patent "Environmental Protection-Free Sand Bricks and Preparation Method" (publication number CN1272467A) is made by mixing cement, sand, stone powder and water in a certain proportion, pressing it under a certain pressure with a brick press, and then steaming it into a shape. for the f...

AI Technical Summary

Problems solved by technology

The disadvantage is: the brick must use cement, which is actually a concrete product, and must be steamed, the process is complicated, and the cost is high

The disadvantage is that it is difficult to have fly ash, steel slag, and calcium carbide slag at the same time in the production site. The cost of collecting and transporting raw materials is high, resulting in high final cost of bricks, which is difficult for users to accept.