INDEX. 



Aalborg kiln, recommended for natural cement, 225 

 used for lime-burning, 101-103 

 Portland cement, 474 



Abrasion, resistance to, by slag-cements, 670 

 Absorption, of clay bricks, 145 



lime-sand bricks, 142, 143, 144, 145 

 sandstones, 142, 146 

 Accelerators for plasters, 50, 64, 66 



slag-cement, 659 

 Acidity index, definition of, 299 



, see also Silica-alumina ratio 

 Adhesive strength of plasters, 62 

 Alabaster, 15 



Algse, aid in marl deposition, 338 

 Alit, in Portland-cement clinker, 568, 571, 573 

 Alkalies, effect in Portland cement, 310, 388, 391 

 in flue-dust of cement-kilns, 510 



limestones, 310 

 used as accelerator for slag cement, 659 



flux in Portland cement, 391 

 Alkali waste, analyses of, 349 



, used as Portland-cement material, 348-350 

 Alum, used in manufacturing Keene's cement, 76 

 Alumina bricks, for kiln-linings, 490 

 Alumina, clays high in, 491 



, effect of, in Portland-cement mixtures, 298, 299, 387, 573 



in sea-water, 602 

 silica-alumina ratio in clays, 354 



limestones, 313 

 Portland cement, 299 

 Ammonia process, see Alkali waste. 

 Analyses of alkali waste, 349 



alumina brick for kiln-linings, 491 



anthracite ash, 396 



arenes, 637 



ash of coke and coal, 396 



