ABSTRACT
Wall classification and design conveniently divide into two categories; external and internal construction. Most external walls support the upper floor and roof and most internal walls are self-supporting only, functioning as a means of dividing space. The exceptions are illustrated in Fig. 4.1, indicating cross-wall construction where the party or separating walls convey roof and
Strength and stability
BS 6073 - Precast concrete masonry units BS 3921 - Clay bricks and blocks BS 187 - Calcium silicate bricks.
