Aberthaw tests of concrete in sea water . Sample No. 2 Proportions 1 Cement 1 Sand 2 Stone 295 lb. Water Cast January 8, 1909. Forms wereremoved January 11, 1909. Specimenimmersed March 1, 1909. When cast no water spattered fromsurface by tamping, but a Httle move-ment could be seen as far as 12 inchesaway. Length 16 ft. Average sec-tional area sq. ft. Volume cu. ft. Net Volume ofConcrete / Gross Weight 4320 lb. Net Weight ofConcrete iC Do. per cu. ft. (C Condition March 3, 1910 Apparently in as good condition aswhen placed. Condition December 17, 1913 Face,
Aberthaw tests of concrete in sea water . Sample No. 2 Proportions 1 Cement 1 Sand 2 Stone 295 lb. Water Cast January 8, 1909. Forms wereremoved January 11, 1909. Specimenimmersed March 1, 1909. When cast no water spattered fromsurface by tamping, but a Httle move-ment could be seen as far as 12 inchesaway. Length 16 ft. Average sec-tional area sq. ft. Volume cu. ft. Net Volume ofConcrete / Gross Weight 4320 lb. Net Weight ofConcrete iC Do. per cu. ft. (C Condition March 3, 1910 Apparently in as good condition aswhen placed. Condition December 17, 1913 Face, sides and back slightly pittedbelow mid-water. Specimen seems ingood condition. Condition June 9, 1920 Face slightly pitted. Corners slightlypitted, but not badly rounded. Backslightly pitted. Specimen seems invery good Sample No. 21913 Sample No. 21920 :io] A C T I O N O F SEA W A T E R O N CONCRETE ^ (V--.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectconcret, bookyear1920
