138 



FAEM BUILDINGS IN SOUTH AFKICA 



Heavy Barbed Wire is frequently used as a reinforcement. It has 

 the disadvantage of being awkward to handle. To be effective it must 

 be kept stretched straight while being imbedded. 



Fig. 117. Triangle mesh wire concrete pipe, as made by the Reinforced Concrete Pipe Co. 



The broken stone used for reinforced concrete should be small, so 

 that it will pack closely around the reinforcement. As already mentioned, 

 it should be capable of passing a f-inch ring, or at most, for heavier 

 work, a 1-inch ring. 



