New Hollow Concrete Brick Introduced in England.

Progress, Volume XVI, Issue 3, 1 November 1920, Page 62

New Hollow Concrete Brick Introduced in England.

A new building unit that has recently been introduced in England, says “Commerce Reports,” is nearly five times as large as an ordinary brick, but in comparison is much less heavy and is easily handled. The lighter weight results from the hollowing out of the brick to provide air layers. By the shaping of the ends the existence of joints running all the way through a wall is avoided. The brick is, as .a rule, made of I part cement and 4 parts sand by- simple hand machinery. Three men can make enough bricks in a day to build 400 to 500 sq. ft. of wall. A further economy is effected by the manner of laying the walls, inasmuch as the ends and bottoms of the bricks need only to be dipped in a thin lime mortar mixed with a small amount of cement. If laid in the usual way the air channels in the brick would become filled. It may be added that slag, clinkers, sand, and brick dust, mixed with cement, form suitable materials for these bricks.