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


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

Welcome to BostonConcreteCutting.Com

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

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

We Are Your Local Concrete Cutter

Call 781-519-2456

We Service Hanson MA and all surrounding Cities & Towns

Concrete Cutting Hanson MA       Concrete Cutting Hanson Massachusetts

Concrete Cutter Hanson MA         Concrete Cutter Hanson Massachusetts

Concrete Coring Hanson MA        Concrete Coring Hanson Massachusetts

Core Drilling Hanson MA               Core Drilling Hanson Massachusetts

Concrete Sawing Hanson MA      Concrete Sawing

Concrete Cutting MA                      Concrete Sawing Hanson Mass

Concrete Cutting Hanson Mass   Concrete Cutting Hanson Massachusetts         

Concrete Cutter Hanson Mass      Concrete Coring Mass       

Core Driller Hanson MA                 Core Drilling Hanson Mass          

Exclusive of the facing, the concrete wall is 8 inches thick. In constructing the Harvard University Stadium, care was taken, after the concrete was placed in the forms, to force the stones back from the face and permit the concrete mortar to cover every stone. When the forms were removed, the surface was picked with a tool as shown in Fig. 118. A pneumatic tool has also been adopted for this purpose. The number of square feet to be picked per day depends on the hardness of the concrete. If the picking is performed by hand, it is done by a common laborer; and he is expected to cover, on an average, about 50 square feet per day of ten hours. With a pneumatic tool, .a man would cover from 400 to 500 square feet per day. Several concrete bridges in Philadelphia have been finished according to the following specifications; and their appearance is very satisfactory: "Granolithic surfacing, where required, shall be composed of 1 part cement, 2 parts coarse sand or gravel, and 2 parts granolithic grit, made into a stiff concrete mortar. Granolithic grit shall be granite or trap rock, crushed to pass a k-inch sieve, and I = 25, screened of dust.

For vertical surfaces, the mixture shall be deposited against the face forms to a minimum thickness of 1 inch, by skilled workmen, as the placing of the concrete proceeds; and it thus forms a part of the body of the work. Care must be taken to prevent the occurrence of air-spaces or voids in the surface. The face shall be removed as soon as the concrete has sufficiently hardened; and any voids that may appear shall be filled with the mixture. The surface shall then be immediately washed with water until the grit is exposed and rinsed clean; and shall be protected from the sun and kept moist for three days. For bridge-seat courses and other horizontal surfaces, the granolithic mixture shall be deposited Fig. 118. Pick for Facing on the concrete to a thickness of at least 1- inches, immediately after the concrete has been tamped and before it has set, and shall be finished to an even surface, and, after it has set sufficiently hard, shall be washed until the grit is exposed." The success of this method depends greatly on the removal of the forms at the proper time. In general the washing is done the day following that on which the concrete was deposited. The fresh concrete is scrubbed with an ordinary scrubbing-brush, removing the film, the impressions of the forms, and exposing the sand and stone of the concrete. If this is done at the right time that is, when the material is at the proper degree of hardness merely a few rubs of an ordinary house scrubbing-brush, with a free flow of water to cut and to rinse clean, constitutes all the work and apparatus required. The cost of scrubbing is small if done at the right time.

A laborer will wash 100 square feet in an hour; but if that same area is permitted to get hard, it may require two men a day with wire brushes to secure the desired results. The practicability of removing the forms at the proper time for such treatment depends upon the character of the structure and the conditions under which the work must be done. This method is applicable to vertical concrete walls, but it would not be applicable to the soffit of an arch. This treatment consists in washing the surface of the concrete with diluted acid, then with an alkaline solution. The diluted acid is applied first, to remove the cement and Reproduced at actual size, expose the sand and stone; the alkaline solution is then applied to remove all of the free acid; and finally the surface is washed with clear water. The treatment may be applied at any time after the forms are removed. It is simple and effective. Limestone cannot be used in the concrete for any surfaces that are to have this treatment, as the limestone would be affected by the acid. This process has been used very successfully.

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

We Are Your Local Concrete Cutter

Call 781-519-2456

We Service Hanson MA and all surrounding Cities & Towns

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