702 



INDEX. 



Hydraulic limes, definition, 172 



, manufacture, 174-182 



, properties, 182-184, 188-190 



, specific gravity, 182 



, used in slag cements, 653-654 



"Improved" natural cement, 259, 263, 268 

 Index, acidity, 299 



, cementation, see Cementation index. 



, hydraulic, see Hydraulic index. 

 Iron disulphide, see Pyrite. 

 Iron oxide, in limestones, 91, 310 



Portland cement, 383, 388, 569-570, 573-574 



Jaw crushers, see Crushers. 



Jensch ball mill, used in grinding basic slag, 658 



Johnson kiln for Portland cement, 471-472 



Keene's cement, analyses, 77 



, manufacture, 76-77 

 , properties, 78 

 Kent mill, 443-447 

 Kettles, calcining, for plasters, 38-46 

 Keystone lime-kiln, 104-106 

 Kilns, Aalborg, 101, 225, 474-475 

 , Campbell, 225-228 

 , chamber, 106-108, 472-474 

 , Dietzsch, 474 

 , dome, 99-101, 225, 470-471 

 , Edison, 484 



for hydraulic limes, 177-178 

 for lime-burning, 99-108 

 for natural cements, 225-233 

 for Portland cements, 469-496 

 , Hauenschild, 475-477 

 , Hoffmann, 106-108, 472-474 

 , intermittent, 99-101, 470-471 

 , Johnson, 471-472 

 , Keystone, 104-106 

 , O'Connell, 106-107 

 , Ransome (rotary), 480-496 

 , ring, 106-108, 472-474 

 , rotary, 480-496 

 , Schofer, 101, 225, 474-475 

 , Schwarz, 477-478 



Kirkwood gas-burner for cement-kilns, 489-490 

 Kominuter, description, 448-452 



, used for natural cement, 243, 246 

 , used for Portland cement, 448-452 



