A Treatise on Civil EngineeringJ. Wiley & Son, 1873 - 513 pages |
From inside the book
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Page 34
... thickness . It is secured on the outside either by strips of wood let into the masonry , or by iron curbs . The lining of the kiln is of the best fire - brick . The kiln , for burning , is filled with alternate layers of coal and stone ...
... thickness . It is secured on the outside either by strips of wood let into the masonry , or by iron curbs . The lining of the kiln is of the best fire - brick . The kiln , for burning , is filled with alternate layers of coal and stone ...
Page 40
... thicker , but remaining unchanged in volume . Exposed in this way , the water will in time dissolve out all the lime of the hydrate which has not been reconverted into a sub - carbo- nate , by the absorption of carbonic acid before ...
... thicker , but remaining unchanged in volume . Exposed in this way , the water will in time dissolve out all the lime of the hydrate which has not been reconverted into a sub - carbo- nate , by the absorption of carbonic acid before ...
Page 53
... thickness eight inches . The radius of the horse track for working the wheel is twenty feet . The annular space between the trough and the brick cylin- der in the centre is floored with concrete , resting on a bed of broken stone ...
... thickness eight inches . The radius of the horse track for working the wheel is twenty feet . The annular space between the trough and the brick cylin- der in the centre is floored with concrete , resting on a bed of broken stone ...
Page 61
... thickness over this , and the whole worked up with shovels and hoes until thoroughly incorporated . ( Papers on Practical Engineering , No. 2. Report of Col. S. Thayer , U. S. Corps of Engineers . ) In the hydraulic concrete used upon ...
... thickness over this , and the whole worked up with shovels and hoes until thoroughly incorporated . ( Papers on Practical Engineering , No. 2. Report of Col. S. Thayer , U. S. Corps of Engineers . ) In the hydraulic concrete used upon ...
Page 62
... thickness of the arches , at the crown , varying from five and a half to fourteen inches . The crushing weight of this concrete is nearly fifty - four hundred pounds to the square inch ; the tenacity about five hundred pounds . 162. An ...
... thickness of the arches , at the crown , varying from five and a half to fourteen inches . The crushing weight of this concrete is nearly fifty - four hundred pounds to the square inch ; the tenacity about five hundred pounds . 162. An ...
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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.