Wedge-shaped brick

…Bricks were widely used in the ruins of palaces in various countries during the Warring States period, for floor coverings and drainage ditches. During the Qin and Han dynasties, the basic shapes of bricks, such as square bricks, rectangular bricks, hollow-core bricks, mother-of-pearl bricks, wedge-shaped bricks, and painted bricks, were all in existence. Square bricks are square slabs, and often have patterns embossed on the surface. …

*Some of the terminology explanations that mention "wedge-shaped brick" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…戦国時代の列国の宮殿址では，塼が多用されており，床敷きや排水溝に用いられている。秦･漢時代になると方塼，長方塼，空心塼，子母塼，楔形塼，画像塼など塼の基本形が出そろう。方塼は正方形の板状を呈し，表面に文様を型押しする場合が多い。…

※「楔形塼」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報