Marine Structures, Their Deterioration and Preservation: Report of the Committee on Marine Piling Investigations of the Division of Engineering and Industrial Research of the National Research CouncilIncludes analysis of the Charleston harbor. |
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20 25 DECEMBER 20 25 FEBRUARY 20 25 NOVEMBER 20 25 SEPTEMBER 25 AUGUST 25 FEBRUARY 25 OCTOBER 25 SEPTEMBER Ann des Ponts arsenious oxide Associated organisms Bankia gouldi Bryozoa cent Chelura Chem Abstr Civil Eng Trans coast Committee condition construction copper creosoted piles crustacean cubic foot Cupric cylinders depth Eng Rec exposed Fahr feet girders Harbor impregnation Inst Civil Eng Island JANUARY length Lighthouse Limnoria Limnoria attack LOCATION OF TEST Longleaf pine MAP SHOWING LOCATION marine borers Martesia Mercuric Methods of Protection mud line naphthalene NAUTICAL MILES Navy Yard organisms were Balanus Pier pine Port portland cement pounds Railroad reinforced concrete River salinity sea water sheathing shipworms Soc Civil Eng species specimens of Bankia specimens of Limnoria specimens of Teredo Sphaeroma Teredo bartschi Teredo navalis Teredo sp test blocks TEST BOARDS timber tion toxic treated wharf Wood Preservers
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Page 469 - A Treatise on the Origin, Progress, Prevention, and Cure of Dry Rot in Timber; with Remarks on the Means of Preserving Wood from Destruction by Sea- Worms, Beetles, Ants, etc. By THOMAS ALLEN BRITTON, late Surveyor to the Metropolitan Board of Works, etc., etc. With 10 plates, crown 8vo, cloth, is.
Page 380 - ... (8). Copper sheathed piles have given very satisfactory service in locations where damage from abrasion and theft can be minimized. Such piles carefully prepared and handled fall into the class of best surface protections, when used under the conditions indicated, but are easily damaged by either abrasion or theft.
Page 116 - The creosote in the pile which was perfectly preserved contained originally at least 40 per cent of naphthalene fractions, a large portion of which remained in the wood. The creosote in the pile, which was less perfectly preserved, contained little or no naphthalene. The pitchy matter, which on distillation formed the residue above 320° C. (pile No. 2), is seemingly of an inert character and little objectionable to the teredo. A heavy treatment with creosote consisting largely of this material did...
Page 219 - Cove, which lies on the northerly side of the peninsula, nearly landlocked, approximately circular in form, about 1 mile in diameter and having a narrow bottle-necked entrance. It has a water front of about 1 % miles. The total water frontage of the harbor, inclusive of South Portland, is about 8 И miles.
Page 233 - The prevailing winds are southwesterly during the summer and northerly during the winter. At all seasons the heaviest gales are generally from northeastward or eastward.
Page 458 - Observations on the Shell of the Sea- Worm found on the Coast of Sumatra, proving it to belong to a Species of Teredo, with an account of the Anatomy of the Teredo Navalis.
Page 121 - All oil shall be the heavy or dead oil of coal tar, containing not more than ij4 per cent of water, and not more than 5 per cent of tar, and not more than 5 per cent of carbolic acid. It must not flash below 185° F. nor burn below 200° F. and it must be fluid at 118° F. It must begin to distill at 320° F. and must yield between that temperature and 410° F. of all substances, less than 20 per cent by volume. Between 410 and 470° F. the yield of naphthalene must be not less than 40 nor more than...
Page 380 - ... engineer in arriving at his decision, and hopes that the work can be continued next year to gather additional data. SUMMARY In concluding this part of the report your Committee wishes to emphasize the following points which have been touched upon: (1) Marine borers are very active in San Francisco Bay, and in places where their attack is severe will destroy untreated piling in as short a time as six to eight months. In other places the untreated piling may last two to four years. (2) The information...
Page 233 - THE INNER HARBOR. The Main Ship Channel of Boston Harbor extends from President Roads to the upper end of the navy yard at Charleston. This channel has a depth of thirtyfive feet at mean low water and a width of twelve hundred feet.