706 



INDEX. 





Ovens, used in plaster manufacture, 37 

 Oxychloride cements, 9, 162-167 



Packing weights of hydrated lime, 128 

 natural cements, 248 

 plasters, 52 



Portland cements, 548-553 

 slag cements, 672 

 Parian "cement", 33 

 Parker's cement, 217 

 Pebbles for tube mills, 463-465 

 Peppel, S. V., on lime-sand brick, 134-133, 140, 142 

 Petroleum in rotary kilns, 522 



Phosphorus, effects of, in Portland-cement mixtures, 389-390, 673 

 Plaster, accelerators for, 50, 64-68 

 , adhesive strength, 62-63 

 , analyses, 57 

 , classification, 32 

 , compressive strength, 61-62 

 , cost of manufacture, 52 

 , fineness, 58-59 

 , groups of, 32, 56 

 , imports of, 79, 86 

 , manufacturing methods, 33-55 

 , packing weights, 52 

 , physical properties, 57-67 

 , production of, 79-87 

 , raw materials for, 14-30 

 , retarders for, 50, 64-68 

 , specific gravity, 57 

 f statistics of production, 79-87 

 , tensile strength, 58-61 

 , used in natural cement, 264 



Portland cement, 534-545 

 , weight per cubic foot, 57 

 Plaster of Paris, definition, 32 



, see also Plaster. 

 Porosity, see Absorption. 

 Portland cement, analyses of, 575, 577-579 

 , analytical methods, 604 

 , cementation index of, 398-399 

 , compressive strength, 588-589 

 , compressive tensile ratio, 589-C91 

 , constitution of, 382-391, 566-582 

 , costs of manufacture, 554-561 

 , definition of, 297 

 , effect of freezing, 598-601 

 gypsum, 534-545 

 heat, 597-598 



