CO129-229 - Acting Governor Marsh & Public Offices - 1886 [11-12] — Page 534

CO129 Colonial Office Hong Kong Records 理藩院香港檔案 All AI Reviewed

531

the proportions used in his Concrete, this adding considerably to the cost of the Works- being ignorant of the fact that the white and flour-like appearance of the concrete was quite quite as likely to be due to the presence of salts in the Sand, gravel or water used in making it, and that probably the cement had nothing whatever to do with it.

17. Further on he speaks of the shrinking of the cement "when used pure or mixed with sand and when liquid as grouting"- If he uses an excess of water in his concrete, as he unquestionably does in his briquettes the "considerable shrinking" of his work is not to be wondered at-

18. A consideration of the Statements of the Resident Engineer drives me to the conclusion that he knows nothing whatever about the proper testing of Portland cement - and that he accordingly draws wrong conclusions from inaccurate data.

19. The only statement in the Resident Engineer's Report, that can be considered as in any way serious is that "the net weight in the casks has been carefully obtained and the average is 379 lbs instead of 400 lbs" - 400 lbs being the weight per cask to which I have certified, and your Department has paid for- Unless this weighing was made...

Bury,

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531 the proportions used in his Concrete, this adding considerably to the cost of the Works- being ignorant of the fact that the white and flour-like appearance of the concrete was quite quite as likely to be due to the presence of salts in the Sand, gravel or water used in making it, and that probably the cement had nothing whatever to do with it. 17. Further on he speaks of the shrinking of the cement "when used pure or mixed with sand and when liquid as grouting"- If he uses an excess of water in his concrete, as he unquestionably does in his briquettes the "considerable shrinking" of his work is not to be wondered at- 18. A consideration of the Statements of the Resident Engineer drives me to the conclusion that he knows nothing whatever about the proper testing of Portland cement - and that he accordingly draws wrong conclusions from inaccurate data. 19. The only statement in the Resident Engineer's Report, that can be considered as in any way serious is that "the net weight in the casks has been carefully obtained and the average is 379 lbs instead of 400 lbs" - 400 lbs being the weight per cask to which I have certified, and your Department has paid for- Unless this weighing was made... Bury,

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531 the proportions used in his Concrete, this adding considerably to the cost of the Works- being ignorant of the fact that the white and flour-like appearance of the concrete was quite quite as likely to be due to the presence of salts in the Sand, gravel or water used in making it, and that probably the cement had nothing whatever to do with it. 17. Further on he speaks of the shrinking of the bement "when used pure or mixed " with sand and when •liquid as grouting"- If he used uses an excess of water in his concrete, as he unquestionably does in his briquettes the "considerable shrinking" of his work is not to be wondered wondered at- 18. a consideration of the Statements of the Resident Engineer drives me to the conclusion that he knows nothing whatever about the proper testing of Portland bement - and that he. accordingly draws wrong conclusions from inaccurate data The 19. only statement in the Resident Engineer's Report, that can be considered as in any way serious is that "the net "weight in the casks has been, carefully obtained and the average "is 379 lbs instead of 400 lbs" - 1400 lbs being the weight per cash to which I have certified, and your Department has paid for- Unless this weighing was made Pary Bury,

2026-05-25 08:15:58 · Baseline

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531

the proportions used in his Concrete, this adding considerably to the cost of the Works- being ignorant of the fact that the white and flour-like

appearance of the concrete was quite

quite as likely to be due to the presence of salts in the Sand, gravel or water used in making it, and that probably the cement had nothing whatever

to do with it.

17. Further on he speaks of the shrinking of the bement "when used pure or mixed

" with sand and when

•liquid as grouting"-

If he

used

uses an excess of water in his concrete, as he unquestionably does in his briquettes the "considerable shrinking" of his work is not to be

wondered

wondered at-

18. a consideration of the Statements of the Resident Engineer drives me to the conclusion that

he knows nothing whatever about the proper testing of Portland bement - and that he. accordingly draws wrong conclusions from inaccurate data

The

19.

only statement in the Resident Engineer's Report, that can be considered as in any way serious is that "the net "weight in the casks has been,

carefully obtained and the average "is 379 lbs instead of 400 lbs" - 1400 lbs being the weight per cash to which I have certified, and your Department has paid for-

Unless this weighing was made

Pary

Bury,

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