Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 63
s broken. Upon the breaking of the briquette, the scalebeam falls, and automatically closes the valve J. The weight ofthe shot in the cup F then indicates, according to some definiteratio, the stress required to break the briquette. SAND 73. Sand is nearly always a constituent part of mortar… … Fig. 6. Cement Testing Machine. 46 MASONRY AND REINFORCED CONCRETE 37 74. Object. The chief object of the sand is economy. If thejoints between stones, especially in rubble masonry, were filled witha paste of neat cement, the cost would be excessive, and the increasein the strength of the masonry,…
Architecture · Building
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