Boston Concrete Cutting
288 Grove Street, Unit 110
Braintree, MA 02184


781-519-2456
info@bostonconcretecutting.com
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Concrete Cutting Sawing Pembroke MA Mass Massachusetts

Welcome to BostonConcreteCutting.Com

“We Specialize in Cutting Doorways and Windows in Concrete Foundations”

Are You in Pembroke Massachusetts? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 781-519-2456

We Service Pembroke MA and all surrounding Cities & Towns

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Owing to the difference in the time of setting of Portland cement and Natural cement, the concrete forms can be conveyed much farther and with less danger of the initial setting taking place before the concrete is deposited. When concrete is mixed by hand, wheelbarrows are generally used to transport the concrete; and they are very often used also for transporting machine-mixed concrete. The wheelbarrows used are of the same type as shown in Fig. 140. About two cubic feet of wet concrete is the average load for a man to handle in a wheelbarrow. Fig. 144 shows a cart of the Koehring make, for transporting concrete. The capacity of these carts is six cubic feet. One man can push or pull these carts over a plank runway. The runway consists of two planks, each 8 to 10 inches wide, fastened together with 1-inch by 6-inch cross-pieces, a n d made in sections so that they can be easily handled by two men. When it is necessary to convey concrete a longer distance than it is economical to do so by wheelbarrows or carts, a dumping car run on a track is often used. Fig. 142 shows a steel car for this purpose.

The capacity of these cars is from 10 cubic feet to 40 cubic feet, and the track gauge is from 18 inches to 36 inches. Both end and side dumping cars are made. If a large amount of concrete is to be deposited near where it is mixed, derricks are frequently used to convey the concrete. A combination of car and derrick work is easily made by using flat cars with derrick buckets. Upright tubular boilers are generally used to supply steam for concrete mixers and hoists operated by steam engines, when they are isolated. For the smaller sizes of concrete mixers, the boilers are on the same frame as the engine and concrete mixer. Fig. 128 shows a McKelvey concrete mixer, engine, and boiler mounted on the same frame. In a similar manner the boiler is often fastened to the same frame as the hoisting engine. This arrangement -cannot be used for the larger sizes of concrete mixers and hoists, as they are too heavy to be handled conveniently. When it is possible, the concrete mixer and hoists should be supplied with steam from one centrally located boiler.

A portable boiler is then generally used. A portable woodworking plant can very often be used to advantage in shaping the lumber for the concrete forms when a large building is to be erected. The plant can be set near the site of the building to be erected, and the woodworking done there. The machinery for such a plant should consist of a planer adapted for surfacing lumber on three sides, a rip saw, and a crosscut circular saw; and in some cases a band saw can be used to advantage. Usually, the difference in cost between .surfaced and un-surfaced lumber is so small that the lumber could not be surfaced in a plant of this kind, for the difference in cost; but perhaps it would be more uniform in thickness. In such a plant the rip saw and the crosscut saw would be found to be the most useful; and if reasonable care is taken, this machinery will soon pay for itself. It is often difficult to get work done at a concrete mill when it .is wanted; and if a contractor has his own woodworking machinery, he will be independent of any concrete mill. A plant of this kind can be operated by a steam or gasoline engine or an electric motor. The plant used by Cramp & Company in constructing a reinforced concrete building for the Boyertown Burial Casket Company, Philadelphia, will be described, to show the arrangement of the plant rather than the style of the machinery used. The building is 80 feet by 120 feet, and is ten stories high; also, there is a mezzanine floor between the first and second floors. This building is structurally of reinforced concrete, except that the interior concrete columns in the lower floors were constructed of angles and plates and fireproofed with concrete.

Are You in Pembroke Massachusetts? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 781-519-2456

We Service Pembroke MA and all surrounding Cities & Towns

Boston Concrete Cutting | 288 Grove Street, Unit 110, Braintree, MA 02184 | 781-519-2456 | info@bostonconcretecutting.com