Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 57
a.A cement which remains perfectly sound is said to be of constantvolume. Methods. Tests for constancy of volume are divided into twoclasses: (1) Normal tests, or those made in either air or water maintainedat about 21° Cent. (70° Fahr.). (2) Accelerated tests, or those made in air, steam, or water… … Fig. 5. Metal Clip for Testing Tensile Strength. 42
Architecture · Building
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