A Treatise on Civil EngineeringJ. Wiley & Son, 1873 - 513 pages |
From inside the book
Results 1-5 of 75
Page 5
... taken from new quarries , before using it for important public works . Por- 8. Porphyry . This stone is usually composed of com- pact feldspar , having crystals of the same , and sometimes those of other minerals , scattered through the ...
... taken from new quarries , before using it for important public works . Por- 8. Porphyry . This stone is usually composed of com- pact feldspar , having crystals of the same , and sometimes those of other minerals , scattered through the ...
Page 17
... taken from an article by Mr. James Frost , Civ . Engineer , inserted in the Journal of the Franklin Institute for Oct. 1835 , on the resistance of various substances to abrasion . The substances were abraded against a piece of white ...
... taken from an article by Mr. James Frost , Civ . Engineer , inserted in the Journal of the Franklin Institute for Oct. 1835 , on the resistance of various substances to abrasion . The substances were abraded against a piece of white ...
Page 23
... taken , is found in connection with the clay deposits , or if it belong to a stratum whose general level and characteristics are the same as the argillo - magnesian rocks . These rocks are generally some shade of drab , or of gray , or ...
... taken , is found in connection with the clay deposits , or if it belong to a stratum whose general level and characteristics are the same as the argillo - magnesian rocks . These rocks are generally some shade of drab , or of gray , or ...
Page 25
... taken to make the diameter of the cake the same as that of the tumbler . The vessel is filled with water , and the time of immersion noted . If the lime is only moderately hydraulic , it will have become hard enough at the end of ...
... taken to make the diameter of the cake the same as that of the tumbler . The vessel is filled with water , and the time of immersion noted . If the lime is only moderately hydraulic , it will have become hard enough at the end of ...
Page 29
... taken near the top of the dome . The best manner of arranging the sides of the kiln , in the plane of the longitudinal section , is to connect the top opening with the horizontal section through the top of the dome , by an arc of a ...
... taken near the top of the dome . The best manner of arranging the sides of the kiln , in the plane of the longitudinal section , is to connect the top opening with the horizontal section through the top of the dome , by an arc of a ...
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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.