Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 290
rsion, and also to break thebricpiette as soon as it is taken from the water. Cement ordinarilyattains a greater strength when allowed to set under water, but attainsit more slowly. Age of Briquette for Testing. It is customary to break partof the briquettes at the end of seven days, and the… … V Fig. 3. Briquette Mould. 287 24 MASONRY CONSTRUCTION judged liy the increase in strengtli between the two dates. A mini-mum strength for the two (kites is usually specified. Testing the Briquettes. When taken out of the water thebriquettes are subjected to a tensile strain until rupture takes…
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