Lightweight aggregate concrete blocks primarily for internal non-loadbearing walls
These thin blocks, usually 60 or 75 mm thick, are made with the same lightweight aggregate as those in Class […]
These thin blocks, usually 60 or 75 mm thick, are made with the same lightweight aggregate as those in Class […]
Strength and Stability Up to the middle of the twentieth century the design and construction of small buildings, such as houses,
A pulley block, 6 together with rope or cable, used to raise or shift a load.