PHYSICAL PROPERTIES OF PORTLAND CEMENT. 



597 



TABLE 230. 

 COMPRESSIVE STRENGTH OF SAND-CEMENT MORTARS. (WATERTOWN ARSENAL.) 



Report of Tests of Metals, etc., at Watertown Arsenal, 1902, p. 443. 



TABLE 231. 

 MODULUS OF ELASTICITY OF SAND CEMENT. (WATERTOWN ARSENAL.) 



Report of Tests of Metals, etc., at Watertown Arsenal, 1902, pp. 498-500. 



References on sand cement (Continued). 

 Anon. The manufacture and use of sand cement. Engineering News, April 16, 



1896. 

 Anon. Le Silico-Portland on silico-cement. La Revue Technologique, 



Jan. 25, 1898. 

 Anon. The hydraulic experiment station of Cornell University. Engineering 



News, vol. 41, pp. 130-133. March 2, 1899. (Description of use of 



sand cement.) 



Effect of heating. The effect of high temperatures on cements or 

 concretes is, in these days of fireproof construction, a matter of con- 

 siderable interest to architects and engineers. In 1902 a series of tests 

 along this line were carried out at Watertown Arsenal, some of which 

 are summarized in Table 232, below. 



