A Treatise on Civil EngineeringJ. Wiley & Son, 1873 - 513 pages |
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Page vii
... Blocks of Loose Stone . 456. Pneumatic Processes 457-458 . Pneumatic Piles .. 459. Pneumatic Caissons . ST . LOUIS BRIDGE .. EAST RIVER BRIDGE .. VII . CONSTRUCTION OF MASONRY . PAGE . 163 166 167 167 167 170 174 174 183 183 190 190 191 ...
... Blocks of Loose Stone . 456. Pneumatic Processes 457-458 . Pneumatic Piles .. 459. Pneumatic Caissons . ST . LOUIS BRIDGE .. EAST RIVER BRIDGE .. VII . CONSTRUCTION OF MASONRY . PAGE . 163 166 167 167 167 170 174 174 183 183 190 190 191 ...
Page 5
... blocks of any requisite size . It does not yield easily to the chisel , owing to its great hardness , and when coarse - grained it cannot be wrought to a smooth surface . Like all stones in which feldspar is found , the durability of ...
... blocks of any requisite size . It does not yield easily to the chisel , owing to its great hardness , and when coarse - grained it cannot be wrought to a smooth surface . Like all stones in which feldspar is found , the durability of ...
Page 6
... blocks which it yields , and from its not splitting as smoothly as granite across its beds of stratification , furnishes a building stone suitable for most architectural purposes . It is also a good flagging material , when it can be ...
... blocks which it yields , and from its not splitting as smoothly as granite across its beds of stratification , furnishes a building stone suitable for most architectural purposes . It is also a good flagging material , when it can be ...
Page 9
... the weather . All the varieties , both of the compact and granular , work freely under the chisel and grit - saw , and may be obtained in blocks of any suitable dimensions for the heaviest struc- BUILDING MATERIALS . 21-29 Calcareous ...
... the weather . All the varieties , both of the compact and granular , work freely under the chisel and grit - saw , and may be obtained in blocks of any suitable dimensions for the heaviest struc- BUILDING MATERIALS . 21-29 Calcareous ...
Page 10
... blocks of stone having this imperfection soon separate along these veins on exposure to moisture . The protoxide , the proto - car- bonate , and the sulphuret of iron , are also very destructive in their effects ; frequently causing ...
... blocks of stone having this imperfection soon separate along these veins on exposure to moisture . The protoxide , the proto - car- bonate , and the sulphuret of iron , are also very destructive in their effects ; frequently causing ...
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Common terms and phrases
abutments action arch arranged axis bars beams béton blocks bolts bottom braces brick bridge caisson calcined carbonic carbonic acid cast cast-iron centre chains clay compression concrete connected construction counterforts cross section curved cylindrical deflection depth diagonal diameter dimensions durability effect embankment engineer excavation experiments exterior feet flanch foundation frame give heat horizontal hot blast hydraulic cement hydraulic lime immersion interior kiln laid layer length limestones magnesia masonry material ments mortar ordinary pieces piers placed plates platform points of support portion Portland cement pressure rails resistance rest ribs roadway roadway-bearers Roman cement sand secured sheeting piles side slaked slaked lime sleepers soffit soil solid span specific gravity spikes square inch steel stone strain strength structure struts suitable surface suspended termed thickness timber tion transverse truss tube upper uprights usually vertical voussoirs wall water-way weight wooden 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.
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Page 347 - ... Harvard University. This he has laid out in a beautiful park to be free to the public, and with the name " The Serpent Mound Park." It is in a wild and picturesque country and must eventually be a favorite place of public resort. The Professor, who is an accomplished archaeologist, regards this as one of the most remarkable structures of its kind in the world. His description of the work is as follows: " The head of the serpent rests on a rocky platform which presents a precipitous face to the...
Page 422 - ... is increased to from six to twelve inches. The transversal joints are usually continuous, and those in the direction of the axis of the road break joints. In some cases the blocks are so laid that the joints make an angle of 45° with the axis of the roadway, one set being continuous, the other breaking joints with them.
Page 429 - Too great attention cannot be bestowed upon keeping the road-surface free from an accumulation of mud and even of dust. It should be constantly cleaned by scraping and sweeping. The repairs should be daily made by adding fresh material upon all points where hollows or ruts commence to form. It is recommended by some that when fresh material is added, the surface on which it is spread should be broken with a pick to the depth of half an inch to an inch, and the fresh material be well settled by ramming,...
Page 489 - ... culvert. If the water of the brook is generally limpid, and its current gentle, it may, in the last case, be received into the canal. The communication of the brook, or feeder, with the canal, should be so arranged that the water may be shut off, or let in at pleasure, in any quantity desired. For this purpose a cut is made through the side of the canal, and the sides and bottom of the cut are faced with masonry laid in hydraulic mortar.