Aberthaw tests of concrete in sea water . 22 Proportions 1 Part (Cement , Hydrated Lime )3 Sand6 Stone325 lb. Water Cast wet, January 16, 1909. Formswere removed January 18, immersed February 23,1909. The lime was mixed thoroughlywith the dry cement. The specimenwhen cast quaked with light tamping. I-ength 16 ft. Average sec-tional area . Volume cu. ft. Net Volume ofConcrete Gross Weight 4225 lb. Net Weight ofConcrete Do. per cu. ft. Condition March 3, 1910 This specimen showed little was, however, cracked when firstplaced. When
Aberthaw tests of concrete in sea water . 22 Proportions 1 Part (Cement , Hydrated Lime )3 Sand6 Stone325 lb. Water Cast wet, January 16, 1909. Formswere removed January 18, immersed February 23,1909. The lime was mixed thoroughlywith the dry cement. The specimenwhen cast quaked with light tamping. I-ength 16 ft. Average sec-tional area . Volume cu. ft. Net Volume ofConcrete Gross Weight 4225 lb. Net Weight ofConcrete Do. per cu. ft. Condition March 3, 1910 This specimen showed little was, however, cracked when firstplaced. When examined this crackshowed water leaking out. Condition December 17, 1913 Front face badly pitted frommid-water clear to bottom; not quiteso bad on lower 2 feet. At mid-water badly eaten to depth of 4 soft and dead at this and back equally pitted. Crackin middle of worst eaten part. Condi^kn-rJune 9, 1920 Entirely gone in middle, about 4feet at the top and 6 feet at thebottom remaining, but this is Sanii)lc Xo. 22 Sample No. 221920 29 ACTION O F SEA WATER 0 N CONCRETE
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectconcret, bookyear1920
