Bl This standard establishes the method to determine, for fresh concrete: 1.) the weight per cubic meter 2.) the volume obtained by mixing certain quantities of ingredients 3.) the yield 4.) the cement content 5 .°) the air content This last determination is especially applicable for concretes with incorporated air.
IRAM 1562-1948 history
1948IRAM 1562-1948 Air content and unit volume weight of reinforced concrete