Aberthaw tests of concrete in sea water . Sample No. 6 Proportions 1 Cement2>^ Sand4>2 Stone345 lb. Water Cast very wet, January 9, were removed January 11,1909. Specimen immersed February23, 1909. Length 15 ft. UH in. Average sec-tional area sq. ft. Volume cu. ft. Net Volume ofConcrete Gross Weight 4350 lb. Net Weight ofConcrete Do. per cu. ft. —^ Condition March 3, 1910 The surface appeared to be some-what soft. Condition December 17, 1913 All sides are in good condition forfull length. Face a little pitted, cornerseaten a trifle around low tide
Aberthaw tests of concrete in sea water . Sample No. 6 Proportions 1 Cement2>^ Sand4>2 Stone345 lb. Water Cast very wet, January 9, were removed January 11,1909. Specimen immersed February23, 1909. Length 15 ft. UH in. Average sec-tional area sq. ft. Volume cu. ft. Net Volume ofConcrete Gross Weight 4350 lb. Net Weight ofConcrete Do. per cu. ft. —^ Condition March 3, 1910 The surface appeared to be some-what soft. Condition December 17, 1913 All sides are in good condition forfull length. Face a little pitted, cornerseaten a trifle around low tide. Condition June 9, 1920 Corners are gone about fairly sound. Front pittedabout mid-height. Reinforcement ex-posed about mid-height. Back pittedbetween high and low water. The fineaggregate was rotted for about }4inch in depth at mid-height.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectconcret, bookyear1920
