A Treatise on Civil Engineering |
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Page 18
... subjected to a degree of heat insuf- ficient to drive off all their carbonic acid , yield hydraulic ce- ment , he proposes to retain the name hydraulic limestones ; and to call the cement obtained from their incomplete calci- nation ...
... subjected to a degree of heat insuf- ficient to drive off all their carbonic acid , yield hydraulic ce- ment , he proposes to retain the name hydraulic limestones ; and to call the cement obtained from their incomplete calci- nation ...
Page 41
... obtained from natural stones , can be made by mixing common lime , either in the state of a carbonate or of a hy drate , with clay , and subjecting the mixture to a suitable de- gree of heat . In some parts of France , LIME . 41.
... obtained from natural stones , can be made by mixing common lime , either in the state of a carbonate or of a hy drate , with clay , and subjecting the mixture to a suitable de- gree of heat . In some parts of France , LIME . 41.
Page 42
... subjected to a very high degree of temperature . 101. What is known , in commerce and among engineers , as artificial Portland cement , is a mixture of the blue clay of the London basin and chalk , formed by grinding the materials ...
... subjected to a very high degree of temperature . 101. What is known , in commerce and among engineers , as artificial Portland cement , is a mixture of the blue clay of the London basin and chalk , formed by grinding the materials ...
Page 46
... subjected to the action of a fire , from a grate beneath ; so that the heat can be equally diffused throughout the mass , which is brought only to a slight glow , as seen by the eye . When in this condition , iron pots contain- ing ...
... subjected to the action of a fire , from a grate beneath ; so that the heat can be equally diffused throughout the mass , which is brought only to a slight glow , as seen by the eye . When in this condition , iron pots contain- ing ...
Page 67
... subjected to a thorough and prolonged trituration , until the result is a plastic , viscous , and sticky paste , of a peculiar character , in both its physical appearance and the manner in which it comports itself under the subse- quent ...
... subjected to a thorough and prolonged trituration , until the result is a plastic , viscous , and sticky paste , of a peculiar character , in both its physical appearance and the manner in which it comports itself under the subse- quent ...
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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.