Symposium on use of pozzolanic materials in mortars and concretes. 
Presented at the first Pacific area national meeting, San Francisco, Calif., October 10-14, 1949. 
 - Philadelphia  [1950] 
 - 203 p.  illus.  23 cm. 
 - Its Special technical publication, .
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE<br/>Pozzuolanas.
<br/><br/><label>Dewey Class. No.: </label>620.110  / SYM