This is an extract from BS5628
art 1,
19.1.3 Narrow brick walls
When brick walls are constructed so that the thickness of the wall or loaded inner leaf of a cavity wall is equal to the width of a standard format brick, the values of ƒk obtained from Table 2a) may be multiplied by 1.15.
fk refers to the charateristic compressive strength of the masonry. I was wondering if anyone could explain and possibly direct me towards supporting lietrature, as to why the strength can be increased if the wall is only the width of one brick?
art 1,19.1.3 Narrow brick walls
When brick walls are constructed so that the thickness of the wall or loaded inner leaf of a cavity wall is equal to the width of a standard format brick, the values of ƒk obtained from Table 2a) may be multiplied by 1.15.
fk refers to the charateristic compressive strength of the masonry. I was wondering if anyone could explain and possibly direct me towards supporting lietrature, as to why the strength can be increased if the wall is only the width of one brick?
