Chicago : Engineering and Contracting Pub. Co. · leaf 528
reases great-ly the percentage of absorption, the cylindercontaining 10 per cent of oil absorbing but 1.7per cent of water, based on the dry weight,while 0.25 per cent was absorbed by the cylin-der containing no oil. In almost every casethe maximum absorption was attained withinone day after… … Fig. 28—Section of Chamber Wall, LockNo. 3, Erie Canal. of the cylinders containing, respectively, 10and 25 per cent of oil. The infe. .nee to bedrawn from this fact is that 10 per cent cfoil is nearly as affective as 25 per cent, asfar as water-proofing is concerned. Four vessels of 1:3 mortar,…
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