We provide concrete cutting and core drilling services in the following Massachusetts cities:

Precast Concrete Egress - Precast Concrete Retaining Wall Bulkhead

Basement Door
Precast Bulkhead
Emergency Egress
Precast Concrete Stairs
Precast Concrete Bulkhead
Precast Massachusetts

Affordable Concrete Cutting Massachusetts specializes in cutting doorway openings in concrete foundations for the installation of precast concrete products, bulkhead stairways, stairs and steps from a basement door for egress.

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1-800-799-9151 For Product and Installation Options

Installing a precast concrete bulkhead stairway to your home's basement will add a water tight, weather-proof, emergency egress that is necessary to comply with local building codes during a construction remodel or home improvement project. Either way, this newly added basement entrance, steps or door will add much more function to your home and to your basement.

A precast concrete product is simply concrete that has been mixed, formed and vibrated in a very controlled "plant" environment and then delivered or trucked to its intended destination and then installed. The fact that some precast concrete products are much thinner than conventional "poured in place" or "formed in place" applications does not mean that the precast concrete products are any less quality and to the contrary they are usually much stronger than standard concrete products.

Call now for a free, no obligation cost analysis and estimate. Our experienced personnel will show you the right precast concrete bulkhead for your home, explain to you the installation process, give you an affordable price and if acceptable install your new precast concrete stairway bulkhead, in most cases as quickly as one day.

Complete Precast Concrete Stairway and Bulkhead Delivery, Installation and Replacement Packages Available. Unmatched Quality, Price and Service!

Servicing Rhode Island, Massachusetts, Maine and New Hampshire.

Call Today Toll Free 1-800-799-9151

Additional Precast Concrete Bulkhead Stairway Information Used for Basement Egress Information:

Precast Product / Services

The process of screening sand for use as an ingredient in mixing precast concrete that is used in precast bulkhead, stairway, stairs and steps is explained below.

A sand screen with 1/4-inch openings is generally employed for separating out large material from the sand to be used in the precast concrete bulkhead stairway.

Concrete Stairs / Bulkhead

Specifications should limit the maximum amount of loam or clay to be allowed in any given precast concrete mixture. Loam or a like product should never be permitted, but clay to the amount of 5 to 10 percent, if evenly divided, is often beneficial in a lean precast concrete mixture. In rich precast concrete mixes, the strength and density is decreased by even slight additions of clay; but in lean precast concrete mixes the clay helps to fill the voids of the sand, and causes the cementing product to coat the grains better and to bind them together more strongly.

Emergency Egress / Concrete Steps

Broken stone screenings have a small percentage of voids and, when free from clay, usually make excellent sand for a precast concrete product. These screenings ordinarily create a stronger precast concrete than natural sand but are likely to contain an undue amount of dust, especially when obtained from soft stone or like product; in such a case the mass should be screened before being used in mixing precast concrete. Gravel screenings also constitute a good material in place of sand. All material passing a 1/4-inch screen is generally considered as sand, or fine aggregate; while all material larger than this size is classed as coarse aggregate.

Stone

For the coarse aggregate, either crushed stone or gravel is generally used in mixing concrete used in the construction of precast concrete bulkhead stairs. Any stone is suitable which is clean and durable and which has sufficient strength to prevent the strength of the precast concrete from being limited by the strength of the stone. Trap, granite, limestone, and the more compact sandstone product are generally employed. Aggregates containing soft, flat, or elongated particles should never be used when mixing precast concrete for use in precast concrete bulkhead stairway construction.

Basement Door / Entry / Entryway

All that has been said concerning voids in precast concrete applies with equal force to the coarse aggregate. Screens varying by a quarter of an inch and up are desirable, but a very useful analysis may be made with fewer screens. A uniform size of stone filled with concrete does not make as dense or as strong of a precast concrete as one in which the coarse aggregate is well graded-that is, where the small stones partly fill the larger interstices. A straight line on a mechanical-analysis diagram indicates a uniform grading pertaining to precast concrete with respect to the sizes of aggregate used.

Concrete Steps / Precast Concrete Bulkhead

A general rule when mixing precast concrete for use in precast concrete bulkhead stairway construction is that the larger the stone, the stronger and denser the precast concrete product. Experience has shown that for reinforced precast concrete steps, the maximum size should not be more than about 1 inch to 1 1/2 inches, in order for the precast concrete to fit itself closely around the reinforcing metal inside the concrete steps. Subsequently, the smaller the stone and the greater the surface to be coated, means the greater the amount of precast concrete product required. To learn more on this subject check out The North East Cement Shippers Association at
http://www.necementshippers.com.

Installation / Replacement / Refurbish

Most gravel is sufficiently strong and durable for use in precast concrete steps. The gravel used as aggregate should be at least reasonably clean, although a quantity of finely divided clay equal to 5 to 10 percent of the gravel may add to the strength of the precast concrete steps, if the concrete paste does not entirely fill the voids. The presence of clay in precast concrete products requires very thorough mixing. When gravel is used in a precast concrete product, it should be screened to separate the sand and then it should be remixed in order for the proportions to be definite.

Fire Escape / Egress

Cinders make a good fireproof precast concrete product, but are not recommended by the authorities for reinforced precast concrete manufacturers or concrete plants. The allowable stress is way too low for economical use and, unless great care is taken in having a wet mix and in thorough mixing, there is danger of corrosion of the embedded steel due to porosity. Cinders used in a precast concrete product should not contain any fine ashes and should consist of hard, clean, vitreous clinker, free from any unburned coal. Precast concrete products containing this aggregate can safely be employed for filling between steel beams and to aid in fireproofing steel or iron columns, and for a concrete fill on top of precast concrete floors, roof slabs, stairways and steps.

Consistency

Opinion often differ as to the quantity of water that should be employed in mixing precast concrete, but it is safe to say that a somewhat wet or mushy mixture of concrete should be used in precast concrete bulkhead stairway construction. Such a mixture flows easily under and around any metal reinforcement and ensures its preservation. It also conforms readily to the molds and gives a smooth surface and provides effective egress.

Experiments show that while dry mixed concrete carefully rammed is stronger at the earlier ages than wet concrete; in six months' time, but little difference in strength is found. Moreover, with dry concrete mixtures there is difficulty in obtaining a uniform consistency: occasional concrete batches being too dry. The water used in mixing precast concrete should be free from oil, acid, alkalis, or vegetable matter.

Basement

Bulkhead Unit for Proportioning - When proportions of the ingredients of a precast concrete product are specified, the specifications should state whether the Portland cement shall be measured loose, or as packed in bags and barrels. The reason for this is clear when it is considered that loose Portland cement occupies about 30 percent more volume than packed Portland cement. The usual method is to specify the barrel of packed Portland cement as the unit, and to assign it some definite volume-the sand and stone to be measured loose.

Massachusetts, New Hampshire, Maine

A barrel of Portland cement weighs 376 pounds, not including the barrel, and a bag of Portland cement weighs 94 pounds; in other words, there are four bags to a barrel. The Portland cement as packed in a barrel occupies, on an average, a volume of about 3.2 cubic feet, but as the unit adopted is an arbitrary one in any case, 3.8 cubic feet to the barrel is generally taken as the standard. The value 3.8 has been selected for convenience since 100 pounds of Portland cement can thus be considered as 1 cubic foot.

Theory of Bulkhead Proportions

Two well-established laws govern the theory of proper precast bulkhead proportioning, namely:

  1. With the same percentage of cement in a unit volume of precast concrete products, the strongest and most impermeable precast concrete products are those which have the greatest density.
  2. If the sand and stone aggregate remain the same, the strongest and most impermeable precast concrete products are those containing the greatest percentage of cement in a unit volume.
Precast Products and Services

The first precast concrete law is extremely important. Another way of expressing it is to say that, to obtain the greatest strength and impermeability, the concrete slurry should fill the voids of the sand and the resulting mortar should fill the voids of the stone. The second law means that with the same aggregates the strength and water-tightness increases with the amount of cement used- provided, however, that in some cases this amount be not in excess of the voids in the sand, and that the amount of concrete slurry used in each case be the same. If the concrete slurry more than fills the voids of the sand, or if the slurry more than fills the voids of the stone, the precast concrete will be less dense than if the voids were just filled (ordinary precast concrete has a density between 0.80 and 0.88 and hence is denser than either neat cement or cement mortar); and thus the strength due to increase of cement may be offset by the decrease in density.

Bulkhead Proportioning by Mechanical Analysis

Certain standard bulkhead proportions, such as 1:2:4 and 1:21 / 2:5, are commonly employed in practice; but better results with greater economy can often be secured by the use of mechanical-analysis curves. These curves make it possible to find the best proportions of different aggregates, and they also afford means of finding the best proportions attainable by screening the sand and the stone, and by making artificial combinations of the several portions.

Aggregates

In concrete bulkhead proportioning by mechanical analysis, the object to be aimed at is to grade the fine and coarse aggregate so that the densest precast concrete will result from the use of a given amount of cement. This means that the object to be kept in view while grading should be a minimum percentage of voids; however, the use of much very fine sand and aggregate should be avoided. After this grading is accomplished, an amount of cement should be used which will give the requisite strength or degree of imperviousness to the precast concrete bulkhead stairway construction.

Feel free to contact our competitors, many of which service the same areas of Rhode Island, Massachusetts, New Hampshire and Maine that we do. We have provided these numbers to you as a service to express our confidence that you have already found the only concrete cutting company that offers the highest quality and the best service at the lowest prices. Affordable Concrete Cutting is the only choice.

http://www.necma.com

Concrete Slab Sawing

Concrete slab sawing is by far the most commonly used diamond concrete saw cutting method used in the concrete cutting industry. Concrete slab sawing is typically used to cut horizontal flat surfaces. Slab saws feature a diamond saw blade that is specifically designed to cut through concrete with ease. This diamond saw blade is then mounted on a walk-behind concrete cutting saw. Concrete cutting slab saws are generally used to provide concrete expansion joints, remove damaged pavement or concrete sections, clean and repair random cracks in concrete for repair, and remove concrete sections for demolition purposes.
http://www.nnecpa.com

Core drills/Core Drilling

Concrete core drilling is the process of drilling a round hole through a concrete structure, usually a wall or floor so pipes, wires or other utilities can pass through. A diamond-tipped, drum-shaped concrete core drill bit is mounted on a large drilling machine that is attached to a guiding track for drilling level and plumb or perfectly angled, clean, round holes. Core drilling is used for plumbing, electrical, and HVAC installations. Round holes cut in reinforced concrete, precast concrete, asphalt, brick, cinderblock and other structural materials.
http://www.nnecpa.com

Concrete Cutting, Sawing, Drilling, Breaking and Removal

Concrete slab sawing, (also known as flat sawing), is typically used to cut horizontal flat surfaces such as floors, bridge decks and pavement. Concrete slab saws utilize a diamond saw blade that is mounted on a walk-behind saw that requires only one operator. A concrete cutting slab saw can cut up to 33 inches in depth. Concrete slab sawing is the perfect solution for making safety grooves on highways where traction and drainage are important.

Concrete Core Drilling

Concrete core drilling is performed when precise, circular holes of any diameter are required. Diamond core bits are used. Holes up to 72 inches in diameter can be drilled to virtually any depth. Concrete core drilling is used for various utility installations. Concrete core drilling can be done through steel reinforced concrete slabs, walls in brick, block or even stone.

Here are some more precast concrete bulkhead stairway, steps and stairs resources.

http://www.ncpaonline.org
http://www.pcap.org

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