Estimating Building Costs

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McGraw-Hill, 1927 - Building - 592 pages
 

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Page 505 - To find the circumference of a circle, multiply the diameter by 3.1416. To find the diameter of a circle, multiply the circumference by .31831.
Page 296 - For slow-slaking lime, add enough water to the lime to moisten it thoroughly. Let it stand until the reaction has started. Cautiously add more water, a little at a time, taking care that the mass is not cooled by the fresh water. Do not hoe until the slaking is practically complete. If the weather is very cold, it is preferable to use hot water, but if this is not available, the mortar box may be covered in some way to retain the heat.
Page 434 - The permissible variation in weight is 5 per cent above and 5 per cent below. Furnished with threads and couplings and in random lengths unless otherwise ordered.
Page 470 - Locker rooms 2-4 Steel and iron mills, bar, sheet and wire products: Charging and casting floors 2-4 Store and stock rooms: Rough 2-4 Armory, public hall 3-6 Industrial : Assembling: Rough 3-6 Boilers, engine rooms and power houses: Auxiliary equipment, oil switches and transformers 3-6 Chemical works: Mechanical furnaces, generators and stills, mechanical driers, evaporators, filtration, mechanical crystallizing, bleaching 3—6 Clay products and cements: Molding, pressing, cleaning and trimming...
Page 473 - Warehouse 5 Woodworking Rough sawing and bench work 10 Sizing, planing, rough sanding, medium machine and bench work, gluing, veneering, cooperage 20 Fine bench and machine work, fine sanding and finishing...
Page 505 - Or multiply the square of % diameter by 3.1416 To Find the Surface of a Sphere or Globe — Multiply the diameter by the circumference. Or multiply the square of diameter by 3.1416 Or multiply four times the square of radius by...
Page 372 - The resins in such woods as yellow pine and spruce tend to destroy any paint that is laid over them. When possible, it is well to allow a new house to stand unpainted for at least six months or even a year after the woodwork has been completed. By this exposure to the weather the resins are brought to the surface and are either washed away or hardened, and the resulting wood surface is in much better condition for painting than is a new structure. An unpainted house, however, is an unsightly object,...
Page 534 - Society. 2. Fine Aggregate. — Fine aggregate shall consist of natural sand or screenings from hard, tough, durable crushed rock or gravel, consisting of quartzite grains or other equally hard material graded from fine to coarse, with the coarse particles predominating.
Page 500 - Survey, equals the length of one minute of arc of a great circle of a sphere whose surface equal that of the earth = 6080.204 feet = 1.1516 statute miles. 1 league = 3 nautical miles = 18240.613 feet. GUNTER'S CHAIN 1 link = 7.92 inches = 0.01 chain = 0.000125 mile. 1 chain = 100 links = 66 feet = 4 rods = 0.0125 mile. 1 mile = 80 chains = 8000 links. SQUARE OR LAND MEASURE United States and British 1 square rood = 40 square 1 acre = 4 square roods.
Page 295 - Add enough water to just barely cover the lime, and note how long it takes for slaking to begin. Slaking has begun when pieces split off from the lumps or when the lumps crumble. Water of the same temperature should be used for test and field practice. If slaking begins in less than five minutes, the lime is quick slaking; from five to thirty minutes, medium slaking; over thirty minutes, slow slaking.

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