1.17 : コンクリート積みの敷設

Consider the construction of a concrete masonry wall; first, the base is cleaned, the mortar is spread, and then the initial row of blocks for a corner wall section is set into the mortar.

Typically, mortar is primarily applied to the face shells alone, and each block is placed with its end coated with mortar for the vertical joints.

Concrete masonry is reinforced if required in the horizontal and vertical directions for stability.

Every additional row is verified with a spirit level to ensure it is both level and vertically straight.

The height of each course is carefully measured with a folding rule or checked with a story pole marked with the height, allowing precise alignment and placement of layers.

Lastly, the mortar joints are shaped into a concave form through tooling, and any leftover bits of mortar are cleaned with a soft brush.

The conventional 8-inch height of a standard block neatly aligns with the height of three layers of standard brick or two layers of larger bricks, and this correlation facilitates the construction of composite walls.