Manual of recommended practice for railway engineering and maintenance of way (1905)
American Railway Engineering and Maintenance-of-Way Association · Chicago, Ill. : The Association · leaf 76
he test pieces should be stored in moist air during the test; MASONRY. 63 this is accomplished by placing them on a rack over water contained ina pan and covered with a damp cloth, the cloth to be kept away fromthem by means of a wire screen; or they may be stored in a moist boxor closet. 25. Care… … FIG. 3.—DETAILS FOR BRIQUETTE. 26. The determination of the time of setting is only approximate,being materially affected by the temperature of the mixing water, thetemperature and humidity of the air during the test, the percentage ofwater used, and the amount of molding the paste receives. 64…
Railroad engineering · Railroads
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