A Treatise on Civil EngineeringJ. Wiley & Son, 1873 - 513 pages |
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Page 19
... mixed with a fat or an hydraulic lime . Same as the preceding . 44. The most celebrated European hydraulic cements are obtained from argillaceous limestones , which vary but slightly in their constituent elements and properties . The ...
... mixed with a fat or an hydraulic lime . Same as the preceding . 44. The most celebrated European hydraulic cements are obtained from argillaceous limestones , which vary but slightly in their constituent elements and properties . The ...
Page 37
... mixed with air , it is probable the stone is burned considerably in advance of where the coal is supplied . " As the hot gases of combustion pass on , they give up their heat to the limestone , till , on arriving at the chimney , there ...
... mixed with air , it is probable the stone is burned considerably in advance of where the coal is supplied . " As the hot gases of combustion pass on , they give up their heat to the limestone , till , on arriving at the chimney , there ...
Page 40
... mixed with a portion of sand . 92. Manner of reducing hydraulic cement . - As the cement stones will not slake , they must be reduced to a fine powder by some mechanical process , before they can be con verted into a hydrate . They ...
... mixed with a portion of sand . 92. Manner of reducing hydraulic cement . - As the cement stones will not slake , they must be reduced to a fine powder by some mechanical process , before they can be con verted into a hydrate . They ...
Page 41
... mixed in suita- ble proportions with common lime , will yield a paste that hardens under water , has led , within a ... mixing common lime and unburnt clay , in suitable proportions , and then calcining them . The experiments of M. Vicat ...
... mixed in suita- ble proportions with common lime , will yield a paste that hardens under water , has led , within a ... mixing common lime and unburnt clay , in suitable proportions , and then calcining them . The experiments of M. Vicat ...
Page 42
... mixed with the clay . The process for mixing the ingredients , their calcina- tion , and further preparation for use , are the same as in the preceding case . 100. The artificial hydraulic cement manufactured in France , at Boulogne ...
... mixed with the clay . The process for mixing the ingredients , their calcina- tion , and further preparation for use , are the same as in the preceding case . 100. The artificial hydraulic cement manufactured in France , at Boulogne ...
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Common terms and phrases
abutments action arch arranged axis bars beam béton blocks bolts bottom breaking strain brick bridge caisson calcined carbonic carbonic acid cast iron centre chord clay compression concrete construction counterforts courses cross curved cylinder deflection depth diameter dimensions durability effect embankment engineer excavation experiments exterior feet foundation fracture give hard heat Hodgkinson horizontal hot blast hydraulic cement hydraulic lime hydraulic mortar immersion interior joints kiln laid layer length less limestones lock lower masonry mastic material ments metal mortar ordinary piers pillars placed plates portion Portland cement pressure proportion purpose rails resistance roadway sand sheeting piles side slaked sleepers soffit soil solid specific gravity specimen spikes square inch steel stone strength structure struts suitable surface temperature tensile tensile strength termed thickness timber tion transverse strain truss upper usually vertical voussoirs wall weight 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.