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 ...Norman W. Henley Publishing Company, 1911 - 430 стор. |
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Сторінка 5
... cause it to slake , it forms a powder ; when more water is added it forms a paste . Lime mortar is made by mixing the paste of slaked lime with sand , and is extensively used in the building trades . The ordinary method of slaking lime ...
... cause it to slake , it forms a powder ; when more water is added it forms a paste . Lime mortar is made by mixing the paste of slaked lime with sand , and is extensively used in the building trades . The ordinary method of slaking lime ...
Сторінка 6
... causes the lime paste to spread out in thin films around each grain and thus enables it to harden . Too much sand should not , however , be used , as it tends to make the mortar porous . The hardening of lime mortar is a double process ...
... causes the lime paste to spread out in thin films around each grain and thus enables it to harden . Too much sand should not , however , be used , as it tends to make the mortar porous . The hardening of lime mortar is a double process ...
Сторінка 7
... causes it to crack when used without sand , but the swelling and cracking are much less pronounced than in the case of fat limes . When used in water or in damp places , the actions of common and hydraulic limes differ greatly from each ...
... causes it to crack when used without sand , but the swelling and cracking are much less pronounced than in the case of fat limes . When used in water or in damp places , the actions of common and hydraulic limes differ greatly from each ...
Сторінка 8
... is mixed with water to a plastic condition , a chemical action takes place which causes the materials to solidify or set . The setting of cement , according to the general theory [ 8 ] Handbook for Cement and Concrete Users.
... is mixed with water to a plastic condition , a chemical action takes place which causes the materials to solidify or set . The setting of cement , according to the general theory [ 8 ] Handbook for Cement and Concrete Users.
Сторінка 9
... causes the first hardening , or initial set , as it is called . After the initial set has taken place , cements slowly increase in strength . The final hardening is due to the slower liberation of lime from its union with silica . This ...
... causes the first hardening , or initial set , as it is called . After the initial set has taken place , cements slowly increase in strength . The final hardening is due to the slower liberation of lime from its union with silica . This ...
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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.