1, quality control on the Great Wall of a brick, weighing about 30 pounds. In order to test the quality of the brick, two bricks will be placed on the ground, separated by a gap, and then another brick on the gap, and then force the fourth brick down, if any of the brick breaks, then the brickmaker's life is in danger. This brutal system ensured the quality of each brick, making the Great Wall of China still not fall down. (The harshness of the Qin law is chilling! This is something that should be criticized.) After this almost primitive and rigorous screening, the last fine bricks obtained could be laid on the Great Wall. One may ask, how were these bricks made in ancient times when there was no reinforced concrete? This is the second point I want to talk about.
2. The key to the brick-making process lies in the ingredients used to make the bricks! The basic raw materials of bricks is only mortar and lime and other filler materials, but in order to brick solid, which has a very important raw materials, this material is “glutinous rice”. Glutinous rice is boiled into a porridge, then mixed with lime, sand and gravel, stirred into a slurry, and then used to make bricks and walls, the effect of laying out is very strong.
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2024-10-16 12:59:30
