A
Absorption 68
Acceptance criteria 319
Acid-resistant cements 466
Adhesives 500
Adultrants 424
Aggregate 189, 190, 191, 313
angular 183
artificial 182
bond strength 184
broken brick 191
bulk density 185
bulking 185
characteristics of 183
cinder 191
classification of 181
coarse 182, 190
deleterious materials 187
elongated 183
fine 189
fineness modulus 186
flaky 183
irregular 183
moisture content 185
natural 182
organic impurities 187
porosity 185
rounded 182
shape and texture 185
specific gravity 185
stiffness 184
strength 183
testing of 191
sxhi
thermal properties of 189
voids 185
Air permeability method 156
Aldural 382
Alkali-aggregate reaction 187,
188
control of 188
factors affecting 188
Alkalis 16
All-in 182
Aluminium 380
Aluminium bronze 382
Annual rings 92
Asbestos 501
Asphalt 440, 444
Autoclave test 161B
Baching 246
volume 246
weigh 246
Bacterial concrete 497
Basalt stone dust 17
Base 421
Batten boards 135
Bending strength 126
Bethel process 106
Bitumen 440, 441, 442
properties of 442
Bitumen emulsion 441
Bituminous sheets 443
Black core 29
Bleeding 286Blending 18
Blisters 29
Bloating 29
Block boards 133
Blocks 32
hollow 32
Blown bitumen 441
Bogue compounds 147
Boucherie process 105
Bound water 151
Brass 384
Brick 14
Brick earth 14, 15
harmful substances in 15
preparation 18
Bricks 10, 11, 16, 24, 26, 29, 30,
31
acid refractory 39
basic refractory 39
characteristics 14
classification 11
clay soling 31
defects 29
different forms of 24
first class 11
fourth class 12
heavy duty 12, 30
ingredients 14
manufacturing 16
neutral refractory 39
paving 31
perforated 30
second class 12