Concrete Cutting Sawing Antrim NH New Hampshire

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Are You in Antrim New Hampshire? Do You Need Concrete Cutting?

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We Service Antrim NH and all surrounding Cities & Towns

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Concrete Sawing Antrim New Hampshire

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Concrete Cutter Antrim New Hampshire           

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We offer Core Drilling and Coring to Antrim, NH

The number of brick per cubic yard given above is the equivalent of 16, 19, and 20 brick per cubic foot. Bricklayers (backed up by their unions) sometimes demand pay per 1,000 brick laid, but compute the number on the basis of 7 bricks per superficial foot of a concrete wall 4 inches thick, 15 bricks for a "9-inch wall," and 22 bricks for a "13-inch wall." The number actually used in a 13-inch concrete wall varies from 17 to 20. A laborer should handle 2,000 brick per hour in loading them from a car to a wagon. If they are not unloaded by dumping, it will require as much time again to unload them. A concrete cutter should lay from 1,200 to 1,500 brick per 9-hour day on ordinary concrete wall work. For large, massive foundation work with thick walls, the number should rise to 3,000 per day. On the other hand, the number may drop to 200 or 300 on the best grade of pressed- brick work. About one helper is required for each concrete cutter. Concrete cutter' wages vary from 40 to 60 cents per hour; helpers' wages are about one-half as much. As previously stated, brick is very porous; ordinary cement concrete is not water-tight; and therefore, when it is desirable to make brick concrete impervious to water, some special method must be adopted as described in Part I, under the head of "Waterproofing." This name is applied to the white deposit which frequently concrete forms on brickwork and concrete, and has already been described in Part I. The Sylvester wash has frequently been used as a preventive, and with fairly good results. Diluted acid has been used successfully to remove the efflorescence. These methods have already been described. A brick pier, as a general rule, is the only concrete forms of brickwork that is subjected to its full resistance. Sections of walls under bearing plates also receive a comparatively large load; but only a few courses receive the full load, and therefore a greater unit-stress may be allowed than for piers. For example, a column 16 feet in height and 1 feet square, laid with rich lime concrete, may be subjected to a load of 65 pounds per square inch, or 9,360 pounds per square foot; for a 1 to 2 natural cement concrete, 90 pounds per square inch, or 12,960 pounds per square foot; and for a 1 to 3 Portland cement concrete, 146 pounds per square inch, or 20,914 pounds per square foot. The building laws of some cities require a bonding stone spaced every 3 to 4 feet, when brick piers are used. This stone is 5 to 8 inches thick, and is the full size of the pier. Engineers and architects are divided in their opinion as to the results obtained by using the bonding stone. Concrete is extensively used for constructing the many different types of foundations, retaining walls, dams, culverts, etc. The ingredients of which concrete is made, the proportioning and the methods of mixing these materials, etc., have been discussed in Part I. Methods of mixing and handling concrete by machinery will be discussed in Part IV. Various details of the use of concrete in the construction of foundations, etc., will be discussed during the treatment of the several kinds of work. Rubble concrete includes any class of concrete in which large stones are placed. The chief use of this concrete is in constructing dams, lock walls, breakwaters, retaining walls, and bridge piers. The cost of rubble concrete in large masses should be less than that of ordinary concrete, as the expense of crushing the stone used as rubble is saved, and each large stone replaces a portion of cement and aggregate; therefore this portion of cement is saved, as well as the labor of mixing it. The weight of a cubic foot of stone is greater than that of an equal amount of ordinary concrete, because of the pores in the concrete; the rubble concrete is therefore heavier, which increases its value for certain classes of work. In comparing rubble concrete with rubble concrete cutting, the concrete forms are usually found cheaper because it requires very little skilled labor.

Are You in Antrim New Hampshire? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 603-622-4441

We Service Antrim NH and all surrounding Cities & Towns