Cement brick specifications, cement brick size?

China's standard clay brick size is 240 × 115 × 53mm, plus masonry with the thickness of the mortar 8 ~ 10mm, exactly 4 bricks long plus mortar for 1m, 8 bricks wide plus mortar for 1m, 16 bricks thick plus mortar for 1m, together with the square 1m3 brick masonry. The modulus size is very good, so it is called "standard brick". 4 × 8 × 16 = 512 (blocks). 512 standard bricks per cubic meter of masonry? (The amount of mortar: 1-0. 24 × 0. 115 × 0. 053 × 512 = 0. 748m3). All other brick modulus sizes go along the same lines.