 | Sir Henry Parnell - 1833 - 508 pages
...will make a good road, particularly when the pebbles are so large as to admit of their beingbroken ; but when it consists of limestone, sandstone, flint,...portion of the earthy matter to which it is reduced. This prevents the gravel from becoming consolidated, and renders a road made with it extremely defective... | |
 | 1834 - 604 pages
...to admit of their being broken ; but when it consists of limestone, sandstone, flint, and other weai stones, it will not ; for it wears so rapidly, that...portion of the earthy matter to which it is reduced. This prevents the gravel from becoming consolidated, and renders a road made with it extremely defective... | |
 | Sir Henry Parnell - 1838 - 512 pages
...their being broken ; but when it consists of limestone, sandstone, or flint, it is a very bad one ; for it wears so rapidly that the crust of a road made...portion of the earthy matter to which it is reduced. This * For the hardness «f some particular kinds of stone, see Appendix, No. III. prevents the gravel... | |
 | Henry Brooke Parnell (1st baron Congleton.) - 1838 - 578 pages
...their being broken ; but when it consists of limestone, sandstone, or flint, it is a very bad one ; for it wears so rapidly that the crust of a road made...portion of the earthy matter to which it is reduced. This * For the hardness of some particular kinds of stone, see Appendix, No. III. prevents the gravel... | |
 | Society for the diffusion of useful knowledge - 1841 - 522 pages
...their being broken ; but when it consists of limestone, sandstone, or Hint, it is a very bad one ; for it wears so rapidly that the crust of a road made...portion of the earthy matter to which it is reduced. This prevents the gravel from becoming consolidated, and renders a Toad made with it extremely defective... | |
 | 1841 - 530 pages
...sandstone, or flint, it is a very burl one; for it wears so rapidly that the crust of a rcail mado with it always consists of a large portion of the earthy matter to which it is reduced. This prevents the gravel from becoming consolidated, and renders a nid mado with it extremely defective... | |
 | 1841 - 524 pages
...their being broken ; but when it consists of limestone, sandstone, or flint, it is a very bad one ; for it wears so rapidly that the crust of a road made...portion of the earthy matter to which it is reduced. This prevents the gravel from becoming consolidated, and renders a road made with it extremely defective... | |
 | Charles Knight - 1868 - 528 pages
...of their being broken; but when it consists of limestone, or sandstone, it is often a very bad one ; for it wears so rapidly that the crust of a road made...consists of a large portion of the earthy matter to whioh it is reduced. This prevents the gravel from becoming consolidated, and renders a road made with... | |
 | FREDERICK W. SIMMS - 1870 - 174 pages
...uniform curvature from side to side, the surveyor should use such a level as is described at page 111. The footpaths should be 6 feet broad, and have an...be broken to a size of a cubical form not exceeding 2ts inches in their largest dimensions, and should be capable of passing through a ring of that diameter.... | |
 | Frederick Walter Simms - 1870 - 220 pages
...roads wet, they occasion the rapid wear of the materials of which they are formed. ROAD MATERIALS. Staffordshire, and Warwickshire, are among the best...be broken to a size of a cubical form not exceeding 2z inches in their largest dimensions, and should be capable of passing through a ring of that diameter.... | |
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... one ; for it wears so rapidly that the crust of a road made with it always consists of a large portion of the earthy matter to which it is reduced. This prevents the gravel from becoming consolidated, and renders a road made with it extremely defective... 