Masonry: A Short Text-book on Masonry Construction |
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Masonry; a Short Text-Book on Masonry Construction Malverd A. (Malverd Abijah) Howe No preview available - 2012 |
Common terms and phrases
absorption abutments arch Arrangement of Stone ashlar masonry backing and filling bed joints block material bond Brick Masonry brick-work Building Stones burning cent Chisel Clamp clay color compressive strength concrete masonry Concrete Surfaces construction course cracks crushing strength cubic foot day in moist days 1 day days in water deposited dowels dressed durable edge Engineers face stone granite gravel hammer headers and stretchers Heinrich Ries holes horizontal impermeable impervious joint surfaces kiln laid layer less limestone load machine magnesium oxide Mansfield Merriman Manufacture metal methods mixed mixer mixture moist air moulds natural cement one-half piers plaster plaster of Paris pointing mortar Portland cement mortar pounds per square quarry quicklime rock sand sandstone Showing Arrangement shown in Fig siliceous spalls specific gravity specimens square inch squared-stone masonry steel stone masonry structure temperature tensile strength thin tool usually vertical joints Voussoirs wall Waterproofing weight Young's modulus
Popular passages
Page 148 - Definition. This term is applied to the finely pulverized product resulting from the calcination to incipient fusion of an intimate mixture of properly proportioned argillaceous and calcareous materials, and to which no addition greater than 3 per cent. has been made subsequent to calcination.
Page 149 - F. as practicable and observed at intervals for at least 28 days. (c) A third pat is exposed in any convenient way in an atmosphere of steam, above boiling water, in a loosely closed vessel for five hours. 23. These pats, to satisfactorily pass the requirements, shall remain firm and hard, and show no signs of distortion, checking, cracking, or disintegrating.
Page 147 - 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.
Page 147 - Ibs. 7 days (1 day in moist air, 6 days in water) 500 Ibs. 28 days (1 day in moist air, 27 days in water) 600 Ibs. One Part Cement, Three Parts Standard Ottawa Sand.
Page 136 - The concrete should be deposited in such a manner as will permit the most thorough compacting, such as can be obtained by working with a straight shovel or slicing tool kept moving...
Page 148 - It shall leave by weight a residue of not more than 8 per cent, on the No. 100, and not more than 25 per cent, on the No. 200 sieve.
Page 146 - The cement shall be stored in such a manner as to permit easy access for proper inspection and identification of each shipment, and in a suitable weather-tight building which will protect the cement from dampness.
Page 145 - The tests for constancy of volume are divided into two classes, the first normal, the second accelerated. The latter should be regarded as a precautionary test only, and not infallible. So many conditions enter into the making and interpreting of it that it should be used with extreme care.
Page 146 - ... 5. Every facility shall be provided by the contractor, and a period of at least 12 days allowed for the inspection and necessary tests. 6. Cement shall be delivered in suitable packages with the brand and name of manufacturer plainly marked thereon. 7. A bag of cement shall contain 94 pounds of cement net. Each barrel of Portland cement shall contain 4 bags, and each barrel of natural cement shall contain 3 bags of the above net weight. 8. Cement failing to meet the 7-day requirements may be...
Page 136 - When work is resumed, concrete previously placed should be roughened, thoroughly cleansed of foreign material and laitance, drenched and slushed with a mortar consisting of one part Portland cement and not more than two parts fine aggregate. The faces of concrete exposed to premature drying should be kept wet for a period of at least seven days.