INDEX 



REFERENCES ARE TO PARAGRAPHS, NOT PAGES 



97 



mill orders, copies of, 238 

 minimum size of material, 30, 87, 134, 



169 



mixing concrete, 312, 313 

 modification in elongation, 178, 198 

 mortar, cement, 377 



NATURAL cement, constancy of 

 volume, 299 



natural cement, definition, 295 

 ' ' , fineness, 296 

 ' ' , tensile strength , 298 

 " , time of setting, 297 

 nicked bends, 180 

 number of tests, 184, 197 

 " " twists, 199 



PAINTING, 249-255 



' ' , after erection, 255 

 " , omitted, 254 

 paved floors, 53 

 permits, 259, 388 

 pin holes, 44, 147, 226, 227 

 pins, 43, 146, 228 

 piles, bearing power on, 21 

 1 ' , specification for, 270 

 " , trestles, 285 

 ' ' , unit stresses for, 277 

 pilot nuts, 229 

 pitch of roofs, 24 

 planks, 273 

 pony bridges, 80, 128 

 Portland cement: 



constancy of volume, 305 



definition, 300 



fineness, 302 



magnesium in, 306 



specific gravity, 301 



sulphuric acid in, 306 



tensile strength, 304 



time of setting, 303 

 Portland-cement concrete: 



cement for, 307 



consistency, 314 



depositing, 316 



expansion joints in, 317 



facing, 318 



finishing of, 320 



forms for, 315 



freezing weather, 322 



gravel for, 310 



mixing by hand, 312 



" machine, 313 



Portland-cement, proportions of, 319 

 sand for, 308 

 stone for, 309 

 water for, 311 

 waterproofing of, 321 

 pressures, on foundations, 19, 66, 118 

 " , on soils, 20 

 " , on walls, 18 

 process of manufacture, 175, 192 

 proportions, general, 76, 125, 156 

 of concrete, 319,351 

 punching, 211, 212 



TJEAMING, 212, 214 



^ Reinforced concrete: 



accepting material, 383 



work, 383 



adherence to plans, 325 

 aggregate, coarse, 366 



, fine, 365 

 assumptions, 343 

 bending moments, 344 

 bond strength, 353 

 cement for, 364 



" -grout, 378 



" -mortar, 377 

 centrifugal force, 338 

 cinders, 370 

 clearing up, 391 

 columns, 346 

 construction joints, 362 

 continuous spans, 352 

 damage, 389 

 dead load, 336 

 defective work, 390 

 erection, 385 

 expansion joints, 363 

 facing, 380 

 finishing, 381 

 fireproofing of, 359 

 freezing weather, 334 

 general dimensions, 342 



" proportions, 351 

 gravel, 368 

 impact, 341 

 ingredients for, 329 

 inspection, 382 

 interruption of traffic, 387 

 live loads, 340 

 maximum stresses, 350 

 minimum reinforcement, 357 

 metal reinforcement, 327, 372 

 mixing by hand, 312, 330 



