Porous concrete building block

摘要

The wall is built by using two types of blocks (1,2) which have the same width (B) and same height (H) but different lengths (L1,L2) matched with each other so that the required binding measurement (U) is produced in relation to the height. Flat bricks of the two types are arranged alternately to continue the wall in each brick layer. A first type of block has a square outline when installed. The length of the second type is shorter than the length of the first type. To form a right-angled corner in each layer the corner block is formed by a block of the second type adjoined on both sides by blocks of the first type.