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Books Bücher 1 - 10 von 12 in The whole of the cement shall be Portland cement of the very best quality, ground...
" 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... "
Notes on Building Construction: Materials course for honors - Seite 168
1892
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Minutes of Proceedings of the Institution of Civil Engineers, Band 24

Institution of Civil Engineers (Great Britain) - 1865
...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...
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On the Main Drainage of London, and the Interception of the Sewage from the ...

1865
...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...
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Experiments on the strength of cement

1875
...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...
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Elements of Practical Construction, for the Use of Students in Engineering ...

Samuel Downing - 1875 - 343 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...
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Elements of practical construction. [With] Atlas of plates

1875
...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...
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Concrete: its use in building

Thomas Potter (clerk of works to lord Ashburton.) - 1877
...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...
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Notes on building construction [by P.G.L. Smith].

Percy Gaillemard L. Smith - 1879
...350 Ibs. per square inch after seven days' immersion, the specification being as follows : — i " The whole of the cement shall be Portland cement of...works mentioned below are shown in the following Table : — After a large number of experiments, Mr. JT Mann comes to the conclusion that " a minimum breaking...
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Van Nostrand's Engineering Magazine, Band 22

1880
...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...
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Sewers and Drains for Populous Districts: With Rules and Formulae for ...

Julius Walker Adams - 1880 - 228 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...
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Transactions

Society of Engineers (London, England) - 1886
...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...
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