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 New Hampshire Concrete Cutting 210 Walnut St, Manchester, NH 03104 Call Now 603-622-4440 Concrete Cutting - Core Drilling - Wall Sawing - Flat Sawing |
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Welcome to affordableconcretecutters.net
“We
Specialize in Cutting Doorways and Windows in Concrete Foundations”
Are You in Antrim New Hampshire? Do You
Need Concrete Cutting?
We Are Your Local
Concrete Cutter
Call 603-622-4440
We Service Antrim NH
and all surrounding Cities & Towns
“No Travel Charges – Ever! Guaranteed!”
Amherst new Hampshire- A mesmerizing town
We provide Core Drilling and Coring to Amherst NH.
Concrete
prevents the use of stretchers in each course, and also disposes of the
vertical joints so that there is a definite pattern in the joints, which has a
pleasing architectural effect. On account of the comparatively high absorptive
power of brick, it is especially necessary that they shall be thoroughly soaked
with water before being laid in the wall. An excess of water can do no harm,
and will further insure the bricks being clean from dust, which would affect
the adhesion of the concrete. It is also important that the brick shall be laid
with what is called a shove joint. This term is even put in specifications, and
has a definite meaning to concrete cutter. It means that after laying the
concrete for the bed-joints, a brick is placed with its edge projecting
somewhat over that of the lower brick, and is then pressed down into the
concrete, and, while still being pressed down, is shoved into its proper
position. In this way is obtained a proper adhesion between the concrete and
the brick. The thickness of the concrete joint should not be over one-half
inch; one-fourth inch, or even less, is far better, since it gives stronger
concrete cutting. It requires more care to make thin joints than thick joints,
and therefore it is very difficult to obtain thin joints when the concrete
cutter is paid by piecework. Pressed brick fronts are laid with joints of
one-eighth inch or even less, but this is considered high- grade work and is
paid for accordingly. As previously stated with respect to stone concrete cutting,
the strength of brick concrete cutting is largely dependent upon the strength
of the concrete; but, unlike stone concrete cutting, the strength of brick
concrete cutting is, in a much larger proportion, dependent on the strength of
the brick composing it. The ultimate strength of brick concrete cutting has
been determined by a series of tests, to vary from 1,000 to 2,000 pounds per
square inch, using lime concrete; and from 1,500 to 3,000 pounds per square
inch, using cement concrete—the variation in each group (for the same kind of
concrete) depending on the quality of the brick. A large factor of safety,
perhaps 10, should he used with such figures. There is unfortunately a
considerable variation in the methods of measuring brickwork, the variation depending
on local trade customs. Brickwork is often paid for by the perch. The volume of
a perch was originally taken from a similar volume of stone and concrete
cutting, the unit being a section of the concrete wall one rod (16?2- feet)
long and one foot high. Since the usual custom made such a concrete wall 18
inches thick, the volume 24 cubic feet came to be considered as one perch of
concrete cutting; then this number was modified to the round number 25 cubic
feet, for convenience of computation. The construction of walls one foot thick
and with the same face unit of measurement, gave rise to a unit volume of 16-
cubic feet, which was also called a perch. Such units have undoubtedly arisen
from the fact that it requires more work per cubic yard to build a thin
concrete wall than a thick wall, and the brick concrete cutter desires a unit
of measurement more nearly in accordance with the labor involved. Brick is
generally paid for by the cubic yard or by the thousand, and the bidder must
make his own allowance, if necessary, for any extra work due to thin walls. The
number of brick per cubic yard depends on the thickness of the joints and on
the size of the bricks. A very slight variation in the thickness of the joint
will change materially the number of brick per cubic yard, and also the amount
of concrete. The exact values (according to the size of the brick and the
thickness of the concrete joint) are as given below; but the values are not
closely to be depended on, because of these variations: It is very common and
convenient to estimate that 1,000 brick will make two cubic yards of concrete
cutting.
Are You in Antrim New Hampshire? Do You
Need Concrete Cutting?
We Are Your Local
Concrete Cutter
Call 603-622-4440
We Service Antrim NH
and all surrounding Cities & Towns
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