design & construction | prestressed concrete tanks | preload

design & construction | prestressed concrete tanks | preload

PRELOAD has maintained a focused vision on designing and constructing the highest-quality and most durable liquid storage tanks for over 90 years. From the first-ever wire-wound, prestressed concrete tank to the advanced tanks of today, PRELOADs legacy is built on the design and construction of more than 4,000 tanks worldwide. PRELOAD tanks are designed and constructed to meet or exceed applicable industry requirements as contained in the following:

From detailed tank design through completed construction, PRELOAD provides singular responsibility for all our clients. Singular responsibility ensures every project detail is exceptionally managed, including implementing the highest quality standards and processes necessary to provide a virtually maintenance-free liquid storage solution.

Since constructing the worlds first wire-wound prestressed concrete tank in 1941, Preloads engineers have led the industry in Innovation and Quality. Even after 90 years, our engineers continue to collaborate with owners, consultants, material providers, and field crews to advance the design.

All AWWA D110, Type III Wire-wound Prestressed Concrete Tanks feature Concrete Floor, Precast, Watertight Steel Shell Diaphragm, Concrete Core Wall, Sliding Floor to Wall Base Connection, Circumferential Wall Prestressing and Concrete Roof (as required). These elements combined create the most proven, watertight, durable, efficient, and low-maintenance tank in the world.

After the construction of the tank is complete, accessories are added to complement the tank structure based on specific project requirements. Accessories are fabricated from premium materials to assure durability and virtually no maintenance, reducing or eliminating costly service interruptions for the life of the tank structure. Like the tanks themselves, accessories are designed to comply with all applicable local, state, and federal regulations. Accessories include:

A design is only as good as the construction professionals who build it, their construction processes, quality control focus, and safety commitment. Preload trains and equips all of our valued construction employees with the knowledge and tools necessary to be successful professionally and personally. Each of Preloads tank construction processes has been developed and refined over decades and thousands of tanks. Consistently implementing these proven processes, verified with a thorough quality control program, assures generations of durable and reliable tank service.

Tank construction begins with the foundation. A solid tank foundation requires thorough subbase preparation. Our engineers carefully review each project to ensure that geotechnical issues are correctly addressed throughout the subgrade and subbase preparation.

After the sub base is prepared, a minimum 6 thick leveling course of granular material is placed on top of the subgrade. This allows for a free-draining work area to facilitate construction and ensures close tolerances in constructing the finished floor.

The most common tank foundation is a Shallow Foundation, where the tank floor and footing loads bearing directly on native soil or engineered fill. The foundation soils are usually prepared by excavating unsuitable soils, proof rolling/inspecting the subgrade, and replacing the unsuitable soils with controlled, compacted structural. A shallow foundation is typically used in conjunction with a concrete membrane tank floor. However, certain scenarios such as very high tank structural loads or unsuitable soils extending below a practical depth may deter the use of a conventional shallow foundation. In this case, foundation options include a deep (pile) foundation or a ground improvement foundation system.

Deep foundation systems support tank structural and liquid loads through the use of a structural element (steel H-pile, auger cast-in-place pile, precast concrete pile, drilled shaft, etc.) installed to a soil bearing layer or a sufficient depth to provide end bearing support, adequate skin friction over the pile length for support or both. The piles support the compressive load and other loads from the structure with minimal deflection vertically. Usually, the vertical deflection of a pile is considered minimal. As the tank floor bears directly on the piles, a structural concrete tank floor is used to resist shear from the pile points loads and bending moments between piles.

Preload constructs a highly reinforced concrete membrane floor that transfers the liquid load directly to the subgrade and contains the liquid in the tank. In conjunction with a custom-designed PVC water stop, this type of floor system provides water tightness and the ability of the floor to settle differentially without being subjected to high secondary bending stresses. The result is a reliable, economical, and durable tank structure.

In either case, our construction methods call for the installation of reinforcing steel and consolidation of properly prepared and tested concrete mixes that render high-quality, watertight tank structures.

PRELOAD engineered the first wire-wound prestressed concrete tank wall more than 70 years ago and has been at the forefront of continuous industry innovation ever since. Todays industry standards for specifying and constructing prestressed concrete tanks are largely due to the technology, methods, and practices PRELOAD brought to the industry. These include industry-accepted publications AWWA D110 and ACI 372R, used to guide the design and construction of prestressed concrete tanks throughout many parts of the world.

The Type III tank wall represents an innovation in prestressed concrete tank design and construction methods. PRELOADs Type III tanks provide maximum quality control during construction and more excellent durability. Our advanced techniques for precasting wall panels and unequaled quality control make a Type III design the best option.

Type III tank wall panels are precast by the PRELOAD Team on-site and shaped to the proper curvature of the tank radius. Panels are constructed in casting beds and then stack-cast in an efficient assembly line process.

A steel diaphragm is used as the bottom form in fabricating each panel. The steel diaphragm is vertically ribbed with reentrant channels, providing a mechanical keyway anchorage to the concrete. The individual diaphragm sheets are mechanically lock-seamed. This process, invented by PRELOAD, produces an impervious watertight membrane throughout the entire wall area.

Next, side forms are positioned to form the edges of the panels, vertical reinforcing and lifting inserts are placed, and the concrete is cast and finished. As the concrete is cast, the thickness and cover over the diaphragm and reinforcing steel are positively controlled by the side form system. This process ensures a minimum of 4 of densely consolidated concrete cover over the steel diaphragm and proper cover over the reinforcing steel. Each panel is then cured in a high-humidity environment.

Once all wall panels are cast, the individual panels are rotated vertically and erected along the perimeter tank footing. The panels are then temporarily braced as the wall construction continues, ensuring safe construction in nearly any weather condition. The diaphragm is then joined together, and joints between the erected panels are filled with shotcrete or concrete. Once the wall construction is complete, the circumferential single wire prestressing is applied.

If required, PRELOAD can embed inserts to support internal tank accessories. Wall sleeve penetrations that accommodate permanent manholes and through-the-wall piping are made watertight by sealing them to the steel diaphragm.

The construction methods used for Type II tank walls were developed by PRELOAD in the 1940s. While the basic methods remain largely unchanged today, advancements in materials and construction techniques have allowed PRELOAD to improve the tanks quality characteristics.

A galvanized steel diaphragm with vertically ribbed reentrant channels is at the core of each PRELOAD Type II tank wall, providing a mechanical keyway anchorage to the shotcrete. The steel diaphragm is seamed and sealed to form a watertight, impervious barrier from the base to the top of the tank. Mild reinforcing steel is then placed in the wall to resist stresses due to differential temperature gradients and vertical bending moments.

Finally, shotcrete is pneumatically applied to the interior and exterior of the steel shell diaphragm to build out the tank core wall. This process allows efficient construction of the tank wall and is performed by one of our specially trained, ACI Certified Shotcrete Nozzelmen.

The dome roof design is unmatched in its economy and durability. The design results in uniform compression throughout the spherical shell, allowing relatively thin concrete sections to span large tank diameters.

In constructing the roof, reinforcing steel is placed in perpendicular directions throughout the dome shell. Then, the concrete is placed onto the form, finely screeded, and finished to the required spherical shape. A thickened fillet section is incorporated at the dome perimeter to resist the bending moments resulting from shell edge discontinuity.

At times a flat-slab column-supported roof is required for fully buried tanks, for a projects height restrictions or for aesthetic reasons. Preloads flat-slab roof is supported by circular columns, each with a footing sized for the allowable soil-bearing capacity. To economize the design, we use column capitals or drop panels compatible with the roof design.

Circular, single-wire prestressing is the time-proven method Preload invented for constructing wire-wound prestressed concrete tanks. Prestressing places the entire tank wall into a state of permanent compression. This prevents the cracking and leaking associated with other types of tank structures. Prestressing the dome edge keeps the dome in compression, enabling the use of large free-spanning concrete domes.

The prestressing wire is applied around the tank in a continuous helix, using specially designed machines capable of exceeding industry standards and meeting our own stringent quality requirements. These machines allow us to maintain a consistent force in the wire while maintaining a minimum clear distance between individual prestressing wires to ensure that every wire is fully encapsulated in shotcrete.

Encapsulating individual wires and applying them helically eliminates the need for buttresses and anchorage zones. This benefit is found only in wire-wound prestressed tanks, resulting in superior reliability and durability.

The final step in the construction of the tank structure is the exterior cover coat. Concrete is applied pneumatically in a process called shotcreting. The concrete is applied or shot onto the wall with air pressure, typically in layers.

The final surface of the cover coat is architecturally finished by applying either a natural gun or a steel-troweled finish to produce a durable and aesthetically-pleasing tank structure for the community.

Thats why we offer a wide range of design possibilities, enabling you to choose the look that best suits your environment. We build Preload tanks in diverse configurations including at grade, partially buried, or fully buried to satisfy your profile preferences and accommodate specific site conditions.

Additionally, with a Preload tank, you can select from a wide range of colors and geometric alternatives, as well as exterior treatments to blend with nearby structures and the surrounding environment. Whatever your location, well build the right tank to suit your communitys needs.

Concrete Panels or concrete parapet and ring the tank edge to visually extend the wall above the roof. This technique is typically used when masking the concrete dome is desired for low profile tanks and/or partially buried tanks.

Concrete Panels or concrete parapet and ring the tank edge to visually extend the wall above the roof. This technique is typically used when masking the concrete dome is desired for low profile tanks and/or partially buried tanks.

Arched Pilasters are similar to pilasters with the addition of an arch between pilasters. Arches are often seen as a complement to the visually appealing dome. The arches and pilasters can be painted in contrasting colors to the rest of the tank creating a distinctive visual appeal.

Arched Pilasters are similar to pilasters with the addition of an arch between pilasters. Arches are often seen as a complement to the visually appealing dome. The arches and pilasters can be painted in contrasting colors to the rest of the tank creating a distinctive visual appeal.

Brick facing is similarly installed on tanks to brick facing for buildings. The brick is non-structural and supported by a brick ledge integral with the wall/footing. Brick is commonly utilized to blend the tank in with other similarly brick-faced structures such as pump stations or treatment buildings.

Brick facing is similarly installed on tanks to brick facing for buildings. The brick is non-structural and supported by a brick ledge integral with the wall/footing. Brick is commonly utilized to blend the tank in with other similarly brick-faced structures such as pump stations or treatment buildings.

Commonly known as EIFS, this architectural system provides the greatest flexibility of design and color. We can construct detailed shapes and textures to disguise the tank as a building, monument, or intricate pattern.

Commonly known as EIFS, this architectural system provides the greatest flexibility of design and color. We can construct detailed shapes and textures to disguise the tank as a building, monument, or intricate pattern.

External Cladding is installed to mask the specific aesthetic features of the tank. This cladding effect can be created from various materials, including panelized insulation for tanks requiring internal liquid temperature control. Cladding can also be combined with canopies and lighting to create depth and illumination.

External Cladding is installed to mask the specific aesthetic features of the tank. This cladding effect can be created from various materials, including panelized insulation for tanks requiring internal liquid temperature control. Cladding can also be combined with canopies and lighting to create depth and illumination.

We were the first ones there and the well be the last to leave. Whatever your needs, we have the experience and vision to get your job done right.

precast, prestressed concrete for instant pavements | construction equipment

precast, prestressed concrete for instant pavements | construction equipment

Step with us through the gates of this concrete-casting plant, and take note of a particular casting-bed (form). It's 400 feet long, 10 feet wide and 8 inches deep. Every 36 feet, a bulkhead assembly has been placed across the bed. Six cable-like steel tendons pass through holes in the bulkheads and are attached at the ends of the bed. Before being anchored at the far end, however, the tendons were stretched to nearly 80 percent of their ultimate strength and secured in that state. Notice also that every 2 feet, a small-diameter tube has been placed across the width of the bed, at right angles to the tendons.

Stand back, now, as tons of quick-setting concrete are poured into the bed, consolidated and hand finished. When the concrete has set sufficiently, the tendons, which are exposed at the bulkheads, are severed. At once, the tendons try to return to their original length, and as they pull in on themselves, they create enormous "compressive" forces in each of the 36-foot-long "panels."

These forces are akin to pressing as hard as you can with the heels of your hands against opposite ends of a row of books. Press hard enough, and you can lift the entire row off the shelf. The compressive forces induced in the concrete panels make them stiffer and better able to resist external forceslike heavy trucksthat will try to bend them during their working life. By pre-tensioning or "prestressing" the panels in this manner, they also can be made thinner, yet will function as well as a much thicker, unstressed panel.

When the panels at the casting yard have cured, they're loaded on trucks and delivered to a road-construction site, at a time when traffic through the site is minimal, usually at night or on the weekend. There, a large rough-terrain crane picks the panels off the trucks, then places them edge-to-edge over a 2-inch asphalt leveling course. Plastic sheeting over the asphalt reduces friction as the panels slide into place. The panels actually fit together with a tongue-and-groove-like keyway, which is epoxy-coated for a more secure joint.

As the panels are installed, you begin to see that their 36-foot width is forming a new pavement with two driving lanes and a shoulder. Those tubes placed in the concrete at the casting yard are now also lining up end-to-end, forming continuous ducts through the panels. Into these ducts are threaded steel tendons, similar to those imbedded in the concrete at the casting yard.

The tendons, which may pass through 15 or more panels, are anchored at one end, pulled taut with a powerful jack from the other, and secured. This process, called "post-tensioning," creates a compressive force through the panels in the new pavement's longitudinal direction, complementing the prior pre-tensioning at the casting yard in what is now the pavement's transverse direction.

The process thus described is an experimental technique for rapidly building or repairing roads in high-traffic areas. So far, the technique has been used on two projectsa 248-linear-foot section of a southern California Interstate (I-10, near El Monte), completed in mid-2004, and a 2,300-linear-foot section of pavement near Austin, Texas, completed in 2002.

At present, two additional projects are in the works, one in Missouri and another in Texas, says David Merritt, P.E., project manager for The Transtec Group, an Austin-based engineering and research firm specializing in pavements. The firm was awarded the FHWA (Federal Highway Administration) contract for design and construction support on the California project, and will serve in a similar capacity for the upcoming projects.

The original Texas project, says Merritt, resulted from a feasibility study initiated by the FHWA and completed by the Center for Transportation Research (CTR) at the University of Texas (Austin). Says Merrittwho worked for CTR at the time and was a member of the feasibility-study and implementation teamthe success of the initial project in Texas led to the California project. Both roadways, he says, are performing successfully.

Base panels are uniform slabs cast with pre-tensioning tendons and post-tensioning ducts. Central-stressing panels are similar in design, but have surface slots, or pockets, which allow feeding in the post-tensioning tendons. Joint panels serve both as an expansion point between post-tensioned pavement sections and as anchors for the post-tensioning tendons. Joint panels are built in halves, with stainless-steel dowels running between the halves.

Although the following quick description would not be the actual sequence of construction, imagine a section of precast pavement that begins with two central-stressing panels, placed edge-to edge. Then, 10 base panels are placed adjacent to each central-stressing panel. At the end of each base-panel set is a joint panel.

Each pocket in the central-stressing panels allows the installation of two tendons, which run in opposite directions through a different set of 10 base panels. When the tendons reach their respective joint panels, they secure themselves in self-locking anchors.

A post-tensioning jack is now installed in a central-stressing-panel pocket near the center of the pavement. The jack uses a "dog-bone" connector that allows pulling both tendons taut, simultaneously. When these tendons are secured, the jack is moved to the next slot (which is 2 or 3 feet away), repeating the process. Post-tensioning continues outward toward the edges of the pavement, alternating the jack side-to-side.

In reality, the panels are placed in a specific sequence. Were a precast pavement to be the continuation of an existing pavement, for example, one side of a joint panel likely would be first mechanically tied to the existing structure. Then would follow, in sequence, the other half of the joint panel, multiple base panels, the central-stressing panels, another set of multiple base panels and a joint panel. (Actually, the joint panel halves are held together and installed as one piece.)

Then, the post-tensioning tendons would be inserted and the entire assembly pulled together from the central-stressing panels. Filling the tendon ducts, stressing pockets and any under-panel voids with grout would complete the installation.

We've skipped over some details, of course. For instance, while panels were, indeed, cast 10 at a time in Texas, the casting bed in California handled only two 37-foot-long panels. An asphalt base was used in Texas, but lean-concrete in California. (Base material, says Merritt, is a work in progress, but asphalt seems more forgiving.) The 10-inch-thick panels used in California were only 8 feet wide (to meet transport regulations), and the number of panels post-tensioned together ranged from 16 in California to 25 in Texas. Also, the California joint panels did not have self-locking anchors, and a bit of diamond grinding was required to attain ride specifications on the California pavement.

According to Merritt, the controlled environment in which the concrete is cast, the pre-tensioning and subsequent post-tensioning all combine to give precast, prestressed pavement the potential for long life. Design-life projections are a sticky subject, but estimates are that the California pavement could last 50 years or more, based on anticipated traffic increases.

Although the cost per square yard of both the Texas and California pavements was 4 to 5 times that of conventionally placed concrete, proponents of the technique say that larger projects would bring an economy of scale that should help cut costs significantly.

The real savings, they say, are in reducing "user-delay costs" which, according to some estimates, can be 10 to 20 times higher in work zones with 24-hour-per-day lane closures, compared to work zones with short night-time or weekend closures. Also on the plus side are the rapid deployment of the pavement sections and the prospect of extending the construction season. The road-building industry will follow with interest the two upcoming projects.

machinery for precast products - precast concrete machinery

machinery for precast products - precast concrete machinery

We buy and sell used precast concrete plants for the precast concrete industry of all renowned brands, although our company is located in Spain, our manageris german and we buy our used machines mainly in Germany and Austria. Nevertheless we can also offer new equipments for the precast concrete industry from our partners.

In our website you willalways findused machines for the production of precast concrete products in good conditions: block making machines, brick making machines, multilayer for paving stones and stationary production lines for concrete blocks, paving stones, curbstones, bradstones, masonry blocks, cinder blocks, paving slabs, patio pavers, driveway pavers as well as batching and mixing plants.

Pallet circulation plants, battery moulds, tilting tables for the production of reinforced concrete walls, sandwich walls and other precast concrete elements,vibrating tables as well as installations for the production of hollow core slabs, equipped with extruders or slipformers and last but not least, machinery for the production of pig slats.

Paving laying machines, paving tools, stone cutters or construction equipment like lifting platforms, construction lifts, crane clamps, hand grabs for laying of curbstones and finally vacuum devices as an attachment for wheel loaders and other loader types.

Pallet circulation linesand tilting tables for the production of solid walls, sandwich walls, double wallsas well as concrete shuttering systems, concrete distributors and vibration tables.

Plants and machinery for the production of prestressed concrete hollow core slabs, including slipformers,extruders, crosscut saws, lifting beams, prestressing equipments and budget start-up hollow core plants.

You can find our current offers for block and paver making machines, machinery for prestressed concrete hollow core slabs and beams, pallet circulation lines and tilting mould machines inUsedprecast concrete machinery

pretensioning equipment and procedures | springerlink

pretensioning equipment and procedures | springerlink

Pretensioning, as explained in Sec. 14, is the term used for the process of making prestressed concrete in which the prestressed reinforcement is stressed before the concrete is placed. Pretensioned concrete is most commonly made in permanent precasting plants, but, on single construction projects that include a large quantity of pretensioned members, it has been found feasible to construct a pretensioning facility on the job site and amortize it on the one project.

prestressed concrete lintel making equipment price - mining & construction solutions from henan dewo machinery

prestressed concrete lintel making equipment price - mining & construction solutions from henan dewo machinery

Dewo machinery can provides complete set of crushing and screening line, including Hydraulic Cone Crusher, Jaw Crusher, Impact Crusher, Vertical Shaft Impact Crusher (Sand Making Machine), fixed and movable rock crushing line, but also provides turnkey project for cement production line, ore beneficiation production line and drying production line. Dewo Machinery can provide high quality products, as well as customized optimized technical proposal and one station after- sales service.

Precast prestressed concrete T beam extrusion machine, US $ 7500 - 8000 / Set, New, Pre-stressed concrete lintel making machine, Automatic.Source from Ningjin County Shuangli Building Materials Equipment Co., Ltd. on Alibaba.com.

China Prestressing Equipment manufacturers - Select 2021 high quality Prestressing Equipment products in best price from certified Chinese Machinery manufacturers, Construction Machinery suppliers, wholesalers and factory on Made-in-China.com

China Concrete Pillar Making Machine manufacturers - Select 2021 high quality Concrete Pillar Making Machine products in best price from certified Chinese Machine manufacturers, Production Making Machine suppliers, wholesalers and factory on Made-in-China.com

China Concrete Extrusion Precast Cement Lintel Making Machine/ Pillars / Fencing Post, Find details about China Cement Lintel Making Machine, Cement Pillars Making Machine from Concrete Extrusion Precast Cement Lintel Making Machine/ Pillars / Fencing Post - Henan Jiade Machinery Co., Ltd.

Concrete Precast Lintels. Our lintels are 6000 psi high strength, and prestressed concrete U shaped lintels. Sizes range from 3- 24. Lintels 148- 24 ft will be prestressed. All can be custom cut to fit your particular opening.

A prestressed lintel is made by casting concrete around high tensile, stretched wires which are anchored to the concrete so that the concrete is compressed by the stress in the wires. Free Delivery over R1500 in Gauteng and over R2500 nationwide (except oversized items).

Dewo machinery can provides complete set of crushing and screening line, including Hydraulic Cone Crusher, Jaw Crusher, Impact Crusher, Vertical Shaft Impact Crusher (Sand Making Machine), fixed and movable rock crushing line, but also provides turnkey project for cement production line, ore beneficiation production line and drying production line.

moldtech equipment and forms for precast concrete plants

moldtech equipment and forms for precast concrete plants

Nox-Crete is proud to be a representative of Moldtech and its forms and equipment for the prestressed and precast concrete industry throughout the United States and Canada. Their products include custom-designed and built fixed steel casting tables, tilting tables, battery molds, staircase and elevator shaft forms, underground utility forms, prestressed bridge girder forms, double tee beam forms, column forms and also equipment. Moldtech offers a full-service approach, including design, manufacture, on-site installation and test production as well as after-sales service.

With 30 years of experience and an ISO 9002-certified manufacturing facility, Moldtech has the innovation as well as the capability to manufacture forms and equipment to meet the precast and prestressed concrete industries' most difficult challenges.

Universal casting bed systems Equipment for prestressed elements Beam mold sides for casting beds Self supporting mold for TT slabs Mold for H beam collection Molds for columns Tilting tables for industrial panels Residential Buildings: Molds for the production of precast concrete elements for use in residential construction Molds for precast housing Load bearing wall panels Tilting tables for residential buildings Accessories for tables Magnetic shuttering systems Equipment for fixed tables as well as floor slabs Staircase molds Elevator shaft molds Public Works: Molds for the production of precast concrete elements for use in public works Molds and also casting bed systems for bridge girders Molds and also casting bed system for prestressed box girder Vibropressed dry cast box culvert Mold for box culvert wet cast Molds for 3D elements Drainage gutter molds Road safety molds

All in all, Moldtech offers innovative solutions to all of your prefabricated concrete industry mold needs. Altogether their services range from custom design molds to installation of fully equipped plants with turn-key basis. Their factory features the latest production technology and then their workforce consists of a highly skilled production team. Finally, Moldtech offers clients a full service approach starting with the design stage as well as the on-site installation, test production and after-sales service.

different types of precast concrete products - constro facilitator

different types of precast concrete products - constro facilitator

Different types of precast products have varied applications. Depending on the shape, size, and grade of concrete used, its function varies. These products are being used in many construction projects wherein uniformity and control are required. Using a precast concrete system offers many potential advantages over onsite casting. Precast concrete production can be performed on the ground level, which helps with safety throughout a project.

Isolated footings Isolated footings are commonly used for shallow foundations to carry and spread concentrated loads, caused for example by columns or pillars. Isolated footings can consist either of reinforced or non-reinforced material. These are used for smaller structures and residential buildings.

Combined footings These concrete footings are usually rectangular and support two or more columns that are so close to each other their footings would overlap. They are used for commercial and industrial buildings.

Precast piles Precast piles are prefabricated piles made of prestressed concrete that are driven into the ground using diesel or hydraulic hammer. The piles are made of prestressed concrete and have fixed dimensions. These piles are used for the most conventional foundation method. Its usually the quickest and also the cheapest method besides the use of wooden piles. The main benefit of these concrete piles is the high vertical pile load and resistance.

RCC beams RCC beams are structural elements designed to carry transverse external loads that cause bending moment, shear forces, and in some cases torsion across their length.RCC beams generally have concrete resisting on the compression region and steel resisting applied loads on the tension region. It can be classified as per size into- rectangular, T-Beam, I-Beam, Circular Beam and L-Beam. It is used to support the buildings floors, roof, walls and cladding.

Prestressed beams FRP-prestressed beams are greater than those of steel-prestressed beams. It is very easy to install with reduced on-site labor needs and costs. It comes in a wide range of depths to meet exact building needs It provides much-needed reinforcement for multi-story buildings and industrial applications.

Shell beams Shell beams are commonly used with precast floor systems to streamline building programs and reduce on-site labour. Pre-stressed shell beam units, with the addition of a reinforcing cage and on-site concrete. Band depths of 290mm to 600mm and widths of 600mm up to 2400mm are possible. Reinforced Ultrashell beams can span up to 11m, with greater spans possible via the addition of Post Tensioning cables.

RCC slabs This type of slabs are used for support conditions in buildings.RCC Slabs whose thickness ranges from 10 to 50 centimeters are most often used for the construction of floors and ceilings. Thin RCC slabs are also used for exterior paving purposes. In many domestic and industrial buildings a thick concrete slab, supported on foundations or directly on the subsoil, is used to construct the ground floor of a building. In high rises buildings and skyscrapers, thinner, precast concrete slabs are slung between the steel frames to form the floors and ceilings on each level.

Prestressed hollow core slabs- A hollow core slab, also known as a voided slab, hollow core plank, or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multi-story apartment buildings. The production of these elements is achieved using our Extruder and Slipformer machines that cast in one phase along a production bed without the need for any formworks. Hollow core slabs are highly developed structural elements and are used all over the world due to their many advantages and diverse applications.

Prestressed solid slabs The solid slab is a customized, loosely reinforced, full concrete slab that is used in residential and industrial construction. Mounting parts, such as electrical outlets, wiring, openings, etc. or even heating conduits can be previously installed in the solid slab in the precasting plant.

Double tee slabs A double tee or double-T beam is a load-bearing structure that resembles two T-beams connected side by side. The strong bond of the flange (horizontal section) and the two webs (vertical members, also known as stems) creates a structure that is capable of withstanding high loads while having a long span. It can be applied in roofing, parking and bridges.

Waffle slabs A waffle slab or two-way joist slab is a concrete slab made of reinforced concrete with concrete ribs running in two directions on its underside. The name waffle comes from the grid pattern created by the reinforcing ribs. Waffle slabs are preferred for spans greater than 40 feet (12 m), as they are much stronger than flat slabs, flat slabs with drop panels, two-way slabs, one-way slabs, and one-way joist slabs. Waffle slab can be used as both ceiling and floor slab. They are used in the areas where less number of columns are provided, i.e. it is used in the areas which have huge spans

Load bearing external walls This wall is constructed to support the above slab or other building elements in a structure. These walls are generally 125 mm to 200 mm thick. The thickness depends on the load pattern.

Non-load-bearing walls This wall holds up only itself. They carry only their weight and may be any one of the types discussed under load-bearing walls. This type of wall is used to close in a steel or concrete frame building. It is usually carried by supports, normally steel shelf angles on each floor. These walls are generally 50 mm to 100 mm thick.

Precast joist roof is a building system in which precast reinforced cement concrete planks rectangular slab elements are placed on precast RCC joists. The roof gets completed with in-situ concrete poured over the haunches in planks and over the partially precast joists, thus ensuring monolithic action of individual precast elements.

Precast sandwich panels enable the strict requirements for thermal insulation to be met. Concrete structures have great insulation qualities, keeping the building warm in cold weather and cool when it is hot, stabilizing the moisture and temperature inside. For the precast facade, a calculated age can be defined. One special feature of a precast faade is the panel joints

Glass fiber-reinforced concrete consists of high-strength, alkali-resistant glass fiber embedded in a concrete matrix. This is used especially for thin architectural cladding panels, but also for ornamental concrete such as domes, statues, planters, and fountains. Recently, decorative concrete artisans have discovered the benefits of GFRC for decorative panels (such as fireplace surrounds), concrete countertops, and artificial rock work.

Precast staircase Precasting staircase produces better surface finishes, avoids the inherent problems of casting complicated inclined sections on-site and provides rapid access to successive floors. They are cost-effective. The staircase can be designed with landing slabs also.

Precast Storm Water Drain Precast concrete drains allow for speedier construction of Drains with minimum site work. These drains range in widths from 200 mm to 855 mm and these can be customized as per your needs. They are produced in strict factory controlled conditions that ensure high quality. These types of drains are also used in Residential Layout and Water Lines in industries.

Precast box culverts These are embedded in and surrounded by soil. Culverts come in many different shapes and sizes, including round, elliptical, flat-bottomed, pear-shaped, and box. Box culverts are used for intakes and outtakes, holding tanks, steam tunnels, corridor links, road crossings, service tunnels and utility trenches. These culverts are used at the road crossings or when the vehicles need to run over them.

Precast UG Sumps A sump is an underground (or partially underground) tank that is popular in India. It is usually used for large water tank storage and can be built cheaply using a precast method. These are useful as they are cast monolithically and much preferred by all sectors.

Precast Septic Tanks Precast concrete septic tanks are strong, watertight, environmentally friendly, and ideal for any residential waste management system. These precast septic tanks are produced to meet your required dimensions and are easily installed at your home as well.

Precast toilets This toilet is simple and ready to use immediately in few hours with all the multiple trade works involved in toilet markings such as waterproofing, plumbing, electrical, tiling, sanitary fittings, ventilators, doors, shower screens

Image Source: archiexpo.com, decodebd.blogspot.com, aarsleff.co.uk, wright.ie, npp-llc.com, stahlton.co.nz, precastindia.co.in, aceinfracon.in, oreillyconcrete.com, alfanarprecast.com, treehugger.com, saraschok.com, designingbuildings.co.uk, technologyinarchitecture.com, basinsa.net, precastbloks.com, utilityconcrete.com, urbanaac.com, careyprecast.com, vmeprecast.com, toiletwala.in

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