Popular Hand Book for Cement and Concrete Users: A Comprehensive and Popular Treatise on the Principles Involved and Methods Employed in the Design and Construction of Modern Concrete Work ... |
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Сторінка 8
The term Portland cement is commonly used to designate hydraulic cement
formed by burning a mixture of limestone and clay in proper proportions to the
point where they begin to fuse or melt . The materials then combine chemically
and form ...
The term Portland cement is commonly used to designate hydraulic cement
formed by burning a mixture of limestone and clay in proper proportions to the
point where they begin to fuse or melt . The materials then combine chemically
and form ...
Сторінка 12
It is then placed into storage bins and the proper proportions decided upon by
chemical analysis of samples taken from various portions . An extremely accurate
mixture is obtained by using an automatic weighing machine of the tandem type .
It is then placed into storage bins and the proper proportions decided upon by
chemical analysis of samples taken from various portions . An extremely accurate
mixture is obtained by using an automatic weighing machine of the tandem type .
Сторінка 20
In a good Portland 98 per cent should pass through a No . 100 sieve , having 10 ,
000 holes to the square inch . The finer the cement is ground the greater will be
its hydraulicity , and the greater the proportions of sand that can be used with it .
In a good Portland 98 per cent should pass through a No . 100 sieve , having 10 ,
000 holes to the square inch . The finer the cement is ground the greater will be
its hydraulicity , and the greater the proportions of sand that can be used with it .
Сторінка 22
They are then broken in testing machines . The briquettes are made both of pure
cement and of cement mortar mixed with varying proportions of [ 22 ] Handbook
for Cement and Concrete Users.
They are then broken in testing machines . The briquettes are made both of pure
cement and of cement mortar mixed with varying proportions of [ 22 ] Handbook
for Cement and Concrete Users.
Сторінка 23
cement and of cement mortar mixed with varying proportions of sand . These
tests are of value because long years of experience have fixed certain values
which a good cement should obtain and although pure cement is little used in
practice ...
cement and of cement mortar mixed with varying proportions of sand . These
tests are of value because long years of experience have fixed certain values
which a good cement should obtain and although pure cement is little used in
practice ...
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Популярні уривки
Сторінка 25 - Pats of neat cement about three inches in diameter, one-half inch thick at the center, and tapering to a thin edge, shall be kept in moist air for a period of twenty-four hours.
Бібліографічна інформація
| Назва | Popular Hand Book for Cement and Concrete Users: A Comprehensive and Popular Treatise on the Principles Involved and Methods Employed in the Design and Construction of Modern Concrete Work ... |
| Автори | Myron Henry Lewis, Albert Hotchkiss Chandler |
| Видання | 2 |
| Видавець | Norman W. Henley Publishing Company, 1911 |
| Оригінал із | Університет Вісконсин-Медісон |
| Оцифровано | 18 трав. 2007 |
| Обсяг | 430 стор. |
| Експортувати бібліографічний опис | BiBTeX EndNote RefMan |