Title:
Experiences With Air-Entraining Cement in Central-Mixed Concrete
Author(s):
Alexander Foster, Jr.
Publication:
Journal Proceedings
Volume:
42
Issue:
6
Appears on pages(s):
625-628
Keywords:
none
DOI:
10.14359/8727
Date:
6/1/1946
Abstract:
Reports studies by Warner Co. with central-mixed concrete using air-entraining cement over 2 1/2 -years. Following experimental work, more than 30,000 cu y of air-entrained concrete, chiefly of low-slump, plastic mix were used for pavements and other highway work. Studies included effect of truck-mixer or agitator action, closed drum and open top equipment, on hauls up to 45 min. No significant differences in slump or air entrainment (2 1/2 to 3 percent) were found. The chief problem is in added storage requirements to meet specifications permitting no admixtures and those demanding air entrainment.