This code is applicable to the design of the following masonry structures in construction projects. Under special conditions or special requirements, the design should be carried out according to special regulations: 1. Brickwork: including sintered ordinary bricks, sintered perforated bricks, autoclaved gray bricks, steamed Unreinforced and reinforced masonry of pressed fly ash ordinary bricks, concrete ordinary bricks, and concrete perforated bricks. 2 Block masonry: including unreinforced and reinforced masonry of concrete blocks and lightweight aggregate concrete blocks. 3 Stone masonry: masonry including various materials and rubble.