 | Institution of Civil Engineers (Great Britain) - 1865 - 652 Seiten
...maintaining a breaking weight of 500 Ibs., on 1A square inch, seven days after being made in an iron mould, and immersed in water during the interval of seven days. The total cost of the Main Drainage Works, when completed, will have been about £4,100,000. The works... | |
 | Sir Joseph William Bazalgette - 1865 - 46 Seiten
...maintaining a breaking weight of £00 Ibs., on 1£ square inch, seven days after being made in an iron mould, and immersed in water during the interval of seven days. The total cost of the Main Drainage Works, when completed, will have been about £4,100,000. The works... | |
 | John Grant - 1875 - 222 Seiten
...bricks, and to have a collar joint between it and the concrete of half an inch of cement." CEMENT. " 37. The whole of the cement shall be Portland cement of...immersed in water during the interval of seven days. The Contractor shall at all times keep in store upon the works a supply of cement equal to at least fourteen... | |
 | Samuel Downing - 1875 - 412 Seiten
...of maintaining a breaking weight of 250 Ibs. per square inch, seven days after being made in a brass mould, and immersed in water during the interval of seven days. The contractor shall, at all times, keep in store upon the works a supply of cement equal to at least fourteen... | |
 | Samuel Downing - 1875 - 414 Seiten
...of maintaining a breaking weight of 250 Ibs. per square inch, seven days after being made in a brass mould, and immersed in water during the interval of seven days. The contractor shall, at all times, keep in store upon the works a supply of cement equal to at least fourteen... | |
 | Thomas Potter (clerk of works to lord Ashburton.) - 1877 - 224 Seiten
...not less than 1121bs. to the striked bushel, and capable of maintaining a breaking weight of 3501bs. per square inch seven days after being made in a mould...immersed in water during the interval of seven days." It will be seen that the later specification compelled a cement nearly double in strength to that at... | |
 | 1880 - 546 Seiten
...Ibs. to the striked bushel, and capable of maintaining a breaking weight of 350 Ibs. per square inch, after being made in a mould and immersed in water during the interval of seven days." It must be admitted that, taken as a specification for cement, this regulation is rather vague, and... | |
 | Julius Walker Adams - 1880 - 248 Seiten
...maintaining a breaking weight of 500 lbs., on 1J square inch, seven days after being made in an iron mould, and immersed in water during the interval of seven days. The total cost of the Main Drainage Works were about £4,100,000. There are about 1,300 miles of sewers... | |
 | Society of Engineers (London, England) - 1886 - 248 Seiten
...misleading, and has, within his knowledge, led to more than one dispute. It is, " The breaking weight per square inch seven days after being made in a mould...immersed in water during the interval of seven days shall be," &c., &c. Now, the wording evidently reads that directly the cement is gauged and filled... | |
 | George Drysdale Dempsey - 1890 - 430 Seiten
...maintaining a breaking weight of 500 pounds on \\ square inches, seven days after being made in an iron mould, and immersed in water during the interval of seven days. The total cost of the main drainage works amounted to aboiit £4,100,000. There were, in 1865, a total... | |
| |
The whole of the cement shall be Portland cement of the very best quality, ground extremely fine, weighing not less than 112 Ibs. to the striked bushel, and capable of maintaining a breaking weight of 350 Ibs. per square inch seven days after being made... 
