A Treatise on Civil EngineeringJ. Wiley & Son, 1873 - 513 pages |
From inside the book
Results 1-5 of 69
Page 4
... the various purposes of the engineer and architect . 6. Sienite , Porphyry , and Green - stone , from the abun- dance of feldspar which they contain , are often designated 4 CIVIL ENGINEERING . 3-16 Silicious Stones STONE.
... the various purposes of the engineer and architect . 6. Sienite , Porphyry , and Green - stone , from the abun- dance of feldspar which they contain , are often designated 4 CIVIL ENGINEERING . 3-16 Silicious Stones STONE.
Page 5
Dennis Hart Mahan. dance of feldspar which they contain , are often designated as feldspathic rocks . For durability , strength , and hard- ness , they may be placed in the first rank of silicious . stones . 7. Sienite consists of a ...
Dennis Hart Mahan. dance of feldspar which they contain , are often designated as feldspathic rocks . For durability , strength , and hard- ness , they may be placed in the first rank of silicious . stones . 7. Sienite consists of a ...
Page 6
... contains but little mica . The quality of granite is affected by the foreign minerals which it may contain ; hornblende is said to render it tough , and schorl makes it quite brittle . The protoxide and sul- phurets of iron are the most ...
... contains but little mica . The quality of granite is affected by the foreign minerals which it may contain ; hornblende is said to render it tough , and schorl makes it quite brittle . The protoxide and sul- phurets of iron are the most ...
Page 9
... contain a certain proportion of clay , or of magnesia , yield , on calcination , those cements which , from their posses- sing the property of hardening under water , have received the various appellations of hydraulic lime , water lime ...
... contain a certain proportion of clay , or of magnesia , yield , on calcination , those cements which , from their posses- sing the property of hardening under water , have received the various appellations of hydraulic lime , water lime ...
Page 10
... contain ; the presence of clay injures the stone , particularly when , as sometimes hap- pens , it runs through the ... contained in the mass , made in sawing or splitting it . 26. Lumachella Marble . This is obtained from a lime- stone ...
... contain ; the presence of clay injures the stone , particularly when , as sometimes hap- pens , it runs through the ... contained in the mass , made in sawing or splitting it . 26. Lumachella Marble . This is obtained from a lime- stone ...
Contents
99 | |
104 | |
121 | |
154 | |
163 | |
172 | |
183 | |
188 | |
190 | |
208 | |
211 | |
231 | |
236 | |
263 | |
274 | |
279 | |
325 | |
331 | |
332 | |
334 | |
337 | |
338 | |
339 | |
344 | |
347 | |
349 | |
350 | |
354 | |
357 | |
359 | |
360 | |
361 | |
362 | |
363 | |
364 | |
365 | |
366 | |
381 | |
384 | |
385 | |
391 | |
392 | |
393 | |
394 | |
396 | |
397 | |
398 | |
399 | |
400 | |
402 | |
403 | |
405 | |
407 | |
408 | |
411 | |
416 | |
419 | |
420 | |
423 | |
425 | |
427 | |
429 | |
430 | |
433 | |
434 | |
435 | |
436 | |
438 | |
439 | |
442 | |
467 | |
494 | |
504 | |
Other editions - View all
Common terms and phrases
abutments action arch arranged artificial axis bars beam béton blocks bolts bottom breaking strain brick bridge caisson calcined carbonic carbonic acid cast iron centre chains chord clay common lime compression concrete connected construction cross curved cylinder deflection depth diagonal diameter durability embankment engineer experiments exterior feet flanch foundation fracture give hard heat Hodgkinson horizontal hot blast hydraulic cement hydraulic lime immersion joints kiln laid layer length limestones lower magnesia masonry mastic material ments metal mortar ordinary pieces piers pillars placed plates portion Portland cement pressure proportion puzzolana rails resistance ribs roadway Roman cement sand sheeting piles side slaked sleepers soffit soil solid span specific gravity spikes square inch steel strength structure struts suitable surface tensile tensile strength termed thickness timber tion transverse strain truss tube upper usually vertical voussoirs wall weight wire wrought iron yield
Popular passages
Page 136 - ... elasticity ; and judging from its slow increase afterwards, I was persuaded that it had not come on by a sudden change, but had existed, though in a less degree, from a very early period.
Page 419 - ... long. The fascines are laid in alternate layers crosswise and lengthwise, and the layers are either connected by pickets, or else the withes, with which the fascines are bound, are cut to allow the brushwood to form a uniform and compact bed. This method of securing a good bed for structures on a weak wet soil has been long practised in Holland, and experience has fully tested its excellence.
Page 175 - For the coping and top courses of a wall, the same objections do not apply to excess in length : but this excess may, on the contrary, prove favorable ; because the number of top joints being thus diminished, the mass beneath the coping will be better protected, being exposed only at the joints, which cannot be made water-tight, owing to the mortar being crushed by the expansion of the blocks in warm weather, and, when they contract, being washed out by the rain.