In this excellent situation, the construction industry in Qin and Han dynasties also flourished. The production scale, firing technology, production quantity and product quality of pottery industry in Qin and Han dynasties greatly exceeded that of any previous era. During the Qin and Han dynasties, architectural pottery played an important role in the pottery industry, and various bricks and tiles appeared, which was called "Qin Brick and Han Tile".
Brick belongs to architectural pottery and is widely used in ancient Chinese architecture. It is the main building material for houses, city walls, roads and graves. Qin brick was first discovered in the ash pit of Yuntang, Fufeng, Shaanxi Province. It is used to paste the surface of earth wall, which has the function of protection and decoration. Bricks were widely used in the Spring and Autumn Period and the Warring States Period. They have squares, rectangles and rectangles, and are used for paving floors and building walls. During the Warring States Period, there were hollow bricks in the State of Qin with Hua Niaowen printed on them, which were mostly used in noble tombs.
With the development of ceramic industry, the production scale of Qin bricks is expanding day by day, the firing technology is improving day by day, the quality of bricks is improving day by day, and the varieties are increasing day by day. The main varieties of Qin bricks are floor tiles and hollow bricks. According to the shape, there are mother-child brick, pentagonal brick, square brick and wedge brick.
The tile surface of the floor tile is decorated with sun pattern, MiG pattern, small square pattern and parallel line pattern; The hollow brick is printed with geometric patterns, or the dragon pattern and phoenix pattern are depicted with negative lines. At the same time, inscription bricks and portrait bricks appeared in the Qin Dynasty. Most of the inscriptions are stamped, and the content of the portrait is also very simple. In Xianyang, Lintong, Fengxiang and other places, a large number of floor tiles and portrait bricks of the Qin Dynasty were found.
Qin bricks are mainly used in city walls, arch bridges, towers and other buildings, and have been widely used and developed. For example, the world-famous Wan Li Great Wall was one of the greatest projects built with Qin bricks more than 2,000 years ago.