INDEX 



xiu 



Rate of deformation, 275 



of grade line, 88 

 Reactions of a beam, 287 

 Reconnaissance for railroad 



location, 222 

 Rectangle, 11 

 Refraction, 88 

 Refractions, Table of mean, 



153 



Reinforced concrete, 319 

 -concrete beams, Bond be- 

 tween steel and concrete 

 in, 329 

 -concrete beams, Double, 



330 

 -concrete beams, Formulas 



for T-shaped, 331 

 -concrete beams, Tables of 



properties of, 323 

 -concrete columns, Formu- 

 las for, 332 

 concrete, Definitions and 



terms used in, 320 

 concrete, Economic steel 



ratio in, 320 



concrete, Formulas for rect- 

 angular beams of, 322 

 concrete, Straight- line 



theory of, 319 

 concrete, Stress ratio in, 



320 

 concrete, Tables for special 



constants in, 326 

 Repose, Angle of, 271 



Slope of, 271 



Reservoir, Volume of, 130 

 Resistance, Moment of, 293 

 Resolution of forces, Com- 

 position and, 259 

 Retaining wall, Pressure on 



base of a, 339 

 wall, Stability against sli- 

 ding of a, 340 

 wall supporting superim- 

 posed loads, 342 

 wall, Surcharged, 341 

 wall with battered back, 



341 

 walls, Empirical rules for, 



342 



walls, Stability of, 338 

 Right ascension of a star, 139 



Ring, 14 



Circular, 16 

 Riveted pipes, Flow in, 378 



steel pipe, 378 

 Rivets, Bearing value of, 



281 



Double shear of, 281 

 Single shear of, 281 

 Table of bearing and shear- 

 ing values of, 282 

 Roads and pavements, 392 

 Bituminous macadam, 



399 



Broken-stone, 397 

 Construction of, 396 

 Gravel, 397 

 Macadam, 398 

 Natural, 396 

 Oiled, 397 



Telford's system of ma- 

 cadam, 398 

 Roadway surfaces, Table of 



rolling friction for, 274 

 Rock, Growth of, 216 

 Rocks, Supporting power of, 



333 



Rods, Leveling, 82 

 Rolling friction, 272 



friction for roadway sur- 

 faces, Table of, 274 

 Ropes, Strength of, 302 

 Rupture, Modulus of, 294 



S 



Safety, Factor of, 280 

 Sag, Correction for, 132 



in railroad location, Ver- 

 tical curve at a, 230 

 Sand, 309 



Section modulus, 269 

 Sector, 14 

 Segment, 14 

 Semi-diameter, Correction 



for, 154 

 Sensitiveness of level bubble, 



81 



Separate sewerage system, 382 

 sewerage system, Capacity 



required for, 384 

 Sewer computations, 385 



pipes, Dimensions of, 390 

 Sewerage, 382 



