The brick-wall bond
The "bond" is the arrangement of bricks in a wall. Stack bond, with continuous vertical joints, is very weak, so bricks are overlapped in structural masonry in order to avoid vertical joints. The minimum overlap is 25 per cent of the length of a brick. Extra strength is provided in walls more than one brick thick by laying bricks transversely across the wall thickness. Indeed, one of the strongest bonds is header bond—built using this method—which results in a surface consisting entirely of headers. This is found on curving walls and on some railroad cuttings. Stretcher bond is very common since the introduction of the cavity wall in ...
Share this highlighthttp://www.safaribooksonline.com/a/construction-for-landscape/3532/