Introduction to prestressed concrete, An. 

 - Videocassette (VHS)(19 min.) : sd., col., 1/2 in. 
<br/><br/> Prestressed concrete, a building material of great versatility. It permits large spans with shallow section members able to bear heavy loads, it allows bridge spans of modest construction depth and it can be factory produced to give economical standard units. These are widely used to speed the construction of multi-storey buildings. Engineers find it increasingly useful in solving problems created by architectural requirements. But what is prestressed concrete? This film explains the processes involved in the manufacture of prestressed concrete. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prestressed concrete.<br/>Prestressed concrete construction.