Action of the salts in alkali water and sea water on cements. . sh-watertanks on the day when due and tested directly after taking fromthe water before drying. Some of the briquettes a year or more oldwere not tested for several days after removing from the water, asit was necessary to ship them for testing, but these were packedin wet straw or sea grass, so they did not dry. 3. SOUNDNESS TEST PIECES The soundness test pieces were in the shape of the standardconstancy of volume pat, 3 inches in diameter, one-half inch inthickness at the center, and tapering to a thin edge. The testpieces or pa
Action of the salts in alkali water and sea water on cements. . sh-watertanks on the day when due and tested directly after taking fromthe water before drying. Some of the briquettes a year or more oldwere not tested for several days after removing from the water, asit was necessary to ship them for testing, but these were packedin wet straw or sea grass, so they did not dry. 3. SOUNDNESS TEST PIECES The soundness test pieces were in the shape of the standardconstancy of volume pat, 3 inches in diameter, one-half inch inthickness at the center, and tapering to a thin edge. The testpieces or pats were molded on 4-inch square glass plates. Twopats were molded from each batch of neat cement, from the samematerial, and at the same time as the briquettes were were stored in a moist closet for the first 24 hours, as werethe briquettes, after which one was placed in a tank of sea waterand the other in a tank of fresh water. The sea water was re-newed every other day. The test pieces were observed from timeto time and their condition Fig. 22.—Crate in which briquettes were stored in sea water
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernatio, bookyear1912
