Aberthaw tests of concrete in sea water . Sample No. 181913 Sample No. 181920 [26 A C T I O N O F SEA WATER O N CONCRETE fe>. Sample No. 19 Proportions 1 Universal Cement 3 Sand 6 Stone 370 lb. Water Cast wet, January 13, 1909. Formswere removed January 15, immersed February 23,1909. When cast quaked with lighttamping. Length 16 ft. Average sec-tional area sq. ft. Volume cu. ft. Net Volume ofConcrete Gross Weight 4125 lb. Net Weight ofConcrete Do. per cu. ft. Condition March 3, 1910 .\ slight roughness showed on thefront face. Condition December 17
Aberthaw tests of concrete in sea water . Sample No. 181913 Sample No. 181920 [26 A C T I O N O F SEA WATER O N CONCRETE fe>. Sample No. 19 Proportions 1 Universal Cement 3 Sand 6 Stone 370 lb. Water Cast wet, January 13, 1909. Formswere removed January 15, immersed February 23,1909. When cast quaked with lighttamping. Length 16 ft. Average sec-tional area sq. ft. Volume cu. ft. Net Volume ofConcrete Gross Weight 4125 lb. Net Weight ofConcrete Do. per cu. ft. Condition March 3, 1910 .\ slight roughness showed on thefront face. Condition December 17, 1913 Fair above high water line, all eaten between high and lowwater. Corners all gone, se\eral inchesdeep in places. Back eaten all over toa depth of up to 4 inches. Steel partlyexposed. Concrete soft and crumbly,l-iiir cciiffftJJa ijelow low water mark. Condition June 9, lO-^O This pile missing. Note: June 9, 1920 This specimen could not be found Sample No. 1919];j [271 A C T I O N 0 F SEA WATER O N CONCRETE ^
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectconcret, bookyear1920
