Formwork block

shuttering block

A shuttering block is a prefabricated concrete element used as lost formwork for load-bearing walls, foundations and reinforced concrete structures. They are produced from vibro-pressed concrete of class C20/25 in prefabrication technology, forming ready-made forms for pouring structural concrete C25/30. They are used in residential, industrial and agricultural construction as a fast and economical construction solution eliminating traditional formwork.

For each project shuttering block price is calculated individually based on the type of elements, quantity, dimensions and size of the order. We guarantee comprehensive technical advice in the selection of the system, calculation of material consumption and timely delivery to the construction site. We invite you for a free quote tailored to the specifics of your investment.

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Prefabricated shuttering block – an innovative building system

The formwork block is revolutionizing the technology of erecting concrete structures, combining the function of formwork and structural element in a single product. Prefabricated concrete elements produced by vibropressing are characterized by high dimensional accuracy and mechanical strength. The system eliminates the need for traditional wooden or steel formwork, significantly speeding up the construction process.

The production of the formwork block is based on the use of concrete of minimum class C20/25 of wet consistency, compacted on vibrating tables. The structure of the element contains chambers with a cross-section of 15×15 cm to 20×20 cm, allowing the introduction of vertical and horizontal reinforcement. Walls with a thickness of 3-5 cm ensure rigidity during transport and installation.

Types of shuttering blocks

Formwork blocks are produced in a variety of types to suit specific construction applications. Basic elements of 50×20×25 cm are standard for 20 cm thick walls. The system is supplemented by corner blocks, end blocks, half blocks and special U-type lintel elements.

Foundation shuttering block is characterized by increased wall thickness up to 6-8 cm and concrete strength C25/30.Elements with a height of 20-25 cm and a length of 50 cm create a stable form for footings and foundation walls. Special grooves allow horizontal installations to be carried out.

System of shuttering blocks

Formwork blocks form a complete building system including all necessary structural elements. Modular construction with a step of 25 cm allows precise planning of building dimensions. The tongue-and-groove system ensures tightness and stability when pouring concrete.

The pouring block system includes: straight wall elements, external and internal corners at 90°, T elements for wall connections, U lintel beams of different lengths. Accessories are supplemented: distance stirrups, connecting brackets, mounting supports.

Concrete pouring technology

The use of a pouring block requires filling the chambers with C25/30 class structural concrete of plastic consistency. Concrete mixture with aggregate fraction 0-8 mm ensures accurate filling of all spaces. Vertical reinforcement of A-IIIN φ12-16 mm steel introduced before concreting.

The process of pouring the 24x24x50 formwork block carried out in layers every 50-100 cm with vibration to remove air bubbles. One working cycle allows the construction of 2.5-3.0 m high wall. Technological breaks performed at the height of horizontal joints between layers of blocks.

Advantages of the shuttering block

Speed of construction with shuttering block

Shuttering block speeds up the pace of construction by 40-60% compared to traditional technology. Elimination of installation and removal of formwork saves 2-3 days on each floor. The system allows a 2-person crew to lay 15-20 m² of wall per day.

Economics of formwork blocks

Formwork blocks reduce construction costs by 25-35% by eliminating the rental of system formwork. No material losses – the hollow block remains an integral part of the structure. Reduction of labor costs by 40% with simpler construction technology.

Strength of the shuttering block

The formwork block, after pouring concrete, forms a monolithic structure with a strength of 30-40 MPa. The system ensures homogeneity of the structure without weak points at joints. Resistance to dynamic and seismic loads due to the continuity of reinforcement.

Insulating capacity of shuttering blocks

Formwork blocks provide good thermal insulation due to their chambered construction. Heat transfer coefficient U=0,5-0,8 W/m²K for 20 cm wall. Possibility of additional insulation from the outside without thermal bridges.

Dimensional accuracy of the pouring block

Flooded block produced in steel molds maintains tolerances of ±2 mm. Perfectly even surfaces eliminate the need for compensatory plastering. Modular construction facilitates planning of window and door openings.

Versatility of the flooding block

Pouring block used for all types of construction – load-bearing walls, partition walls, foundation walls. The system adapts to different spans and heights of buildings. It is possible to make curved and arched elements.

Durability of the 24x24x50 shuttering block

Formwork block 24x24x50 has a service life of more than 100 years. Precast concrete with a low absorption rate of 4-6% provides frost resistance F150. Resistance to biological corrosion – fungi, mold, insects.

Ease of installation of the 15 cm shuttering block

Shuttering block 15 cm weighing 15-20 kg laid by hand without a crane. The system does not require specialized tools – all you need is a level and a mason’s string. Possibility of cutting with a concrete saw for matching dimensions.

The use of shuttering block in the construction industry

Formwork block is widely used in all sectors of construction as a universal construction system. Formwork technology works well in both small single-family houses and large-scale industrial buildings. The modular system allows the realization of a variety of architectural projects.

Single-family housing construction

In single-family houses, formwork blocks are used for the erection of all structural walls. The system allows the construction of one-story and two-story houses with a span of up to 12 m. The technology is particularly popular in the construction of energy-efficient and passive houses due to the elimination of thermal bridges.

Foundation shuttering block is an ideal solution for footings and foundation walls of basements. The possibility of waterproofing directly on the smooth surface of the block. The system eliminates the need to build basement walls from concrete blocks.

Multi-family housing and real estate development

Developers value formwork blocks for their ability to standardize and repeat solutions. The system works well in buildings up to 5 stories as an alternative to large-panel technology. The speed of implementation allows to shorten the investment cycle by 20-30%.

Pouring block used for fire separation walls REI 120-240.Monolithic structure provides excellent sound insulation Rw=55-60 dB between apartments. The system allows you to run installations in the chambers before pouring concrete.

Industrial and storage facilities

In production halls, the pouring block is used for curtain and partition walls. The system is resistant to dynamic loads from machinery and equipment. It is possible to make walls up to 8 m high with appropriate reinforcement.

Formwork block 24x24x50 ideal for the construction of high storage warehouses. Resistant to forklift impacts and mechanical damage. The system allows the installation of high storage racks directly to the wall.

Agricultural construction

On farms, the 15 cm shuttering block used for the construction of livestock buildings. Resistance to aggressive chemical environment – ammonia, organic acids. The system provides easy disinfection and hygiene maintenance.

Silage silos and slurry tanks made of formwork blocks with increased thickness. Possibility of making airtight structures by using sealing admixtures. The system is proven in the construction of agricultural biogas plants.

Retaining structures and fences

The formwork block is ideal for the construction of retaining walls and retaining walls. The system allows the construction of stepped structures on slopes. Vertical and horizontal reinforcement ensures stability under soil pressure.

Formwork block fences are characterized by high aesthetics and durability. The possibility of making posts and spans in one technology. The system allows integration of decorative elements and entrance gates.

Infrastructure facilities

Formwork blocks used in the construction of pumping stations, sewage treatment plants, retention tanks. The system provides watertightness W8 with appropriate selection of pouring concrete. Resistance to cyclic filling and emptying.

Garages and outbuildings

Detached garages made of flooded block are an economical solution for homeowners. The system allows independent construction by the investor. Walls with a thickness of 15-20 cm provide stability and thermal insulation.

Cellars and shelters

Flooding block ideal for making underground rooms. System resistant to soil and ground water pressure. Possibility of making shelters and safe rooms with increased resistance.

Technical parameters of the shuttering block

The shuttering block is manufactured in accordance with the PN-EN 15435:2010 standard for prefabricated plain concrete, lightweight aggregate concrete and autoclaved cellular concrete products. The system meets the requirements of PN-B-03264:2002 for concrete and reinforced concrete structures. All elements have a CE declaration of performance.

Material parameters of the hollow block

Prefabricated formwork blocks are made of concrete of minimum class C20/25, standard C25/30. The characteristic compressive strength of the element fck = 25 MPa. The density of concrete 2100-2300 kg/m³ for plain concrete blocks, 1400-1800 kg/m³ for expanded concrete blocks.

Formwork block is characterized by absorption by weight of 4-6%, frost resistance F100-F150. Thermal conductivity coefficient λ = 1.0-1.3 W/(m-K) for ordinary concrete, λ = 0.4-0.6 W/(m-K) for expanded concrete. Class of reaction to fire A1 – non-flammable product.

Dimensions of standard elements

The basic 24x24x50 shuttering block has external dimensions of 500×240×240 mm, wall thickness of 40-50 mm. Internal chamber dimension 160×160 mm or 2×160×80 mm. The weight of the element is 22-26 kg in dry state.

The shuttering block system includes the following elements: basic 50×20×25 cm and 50×15×25 cm, corner 50/25×20×25 cm, end 25×20×25 cm, half 25×20×25 cm. Shuttering block 15 cm 50×15×25 cm used for partition walls.

Construction parameters after flooding

The pouring block filled with C25/30 concrete achieves a composite strength of 30-35 MPa. The bearing capacity of a 20 cm thick wall is 2000-2500 kN/m under axial load. The limiting slenderness λ = 86 for spatially stiffened walls.

Vertical reinforcement in the pouring block: a minimum of 4φ12 per running meter of wall, a maximum of 4φ20 in one chamber. Horizontal reinforcement in joints every 2-3 layers 2φ8. Reinforcement lag a minimum of 20 mm from the inner wall of the block.

Consumption of materials

Standard consumption of 24x24x50 formwork block: 8 pcs/m² of wall, 4 pcs/m of wall. Pouring concrete consumption: 0.08-0.10 m³/m² for 20 cm wall, 0.06-0.07 m³/m² for 15 cm wall. Consumption of mortar for horizontal joints: 2-3 kg/m².

The pallet holds: 60 pcs of 15 cm shuttering block, 48 pcs of 20 cm block, 40 pcs of 24 cm block. Capacity per pallet: 15 m² for 15 cm wall, 12 m² for 20 cm wall, 10 m² for 24 cm wall.

Thermal and acoustic parameters

Heat transfer coefficient U for a wall made of formwork blocks: U = 1.7 W/(m²-K) for a 15 cm wall without insulation, U = 0.8 W/(m²-K) for a 20 cm wall with plain concrete, U = 0.5 W/(m²-K) for a 24 cm wall with expanded concrete.

Sound insulation of the wall made of shuttering block: Rw = 50 dB for a 15 cm wall, Rw = 55 dB for a 20 cm wall, Rw = 58 dB for a 24 cm wall. Values for walls plastered on both sides with 1.5 cm cement-lime plaster.

Dimensional tolerances

Accuracy of the pouring block: length ±3 mm, width ±3 mm, height ±2 mm. Flatness of the faces ±2 mm. Perpendicularity of the walls ±2 mm. Parallelism of the supporting surfaces ±2 mm.

Certification and testing

The 24x24x50 shuttering block system has: Type tests include: compressive strength, frost resistance, absorbability, thermal conductivity. Factory Production Control Level 2+.

shuttering block pallet

Installation of shuttering block – laying instructions

Proper installation of the shuttering block requires preparation of a stable foundation, accurate delineation of the walls and systematic control of the vertical and horizontal. The technology does not require specialized equipment – basic masonry tools are enough. The modular system allows rapid erection of the structure by a 2-3 person team.

Preparation of the foundation

Laying of formwork blocks begins with the leveling of the surface of the foundation or ceiling. Unevenness greater than 10 mm leveled with M10 cement mortar. Perform horizontal insulation with heat-sealable membrane or PE film over the entire wall surface.

Routing the axis of walls made of shuttering block using a mason’s cord and angle iron. Determining the position of door and window openings. Arranging the arrangement of blocks for minimizing cutting – module 25 cm.

Laying the first layer

First layer of shuttering blocks laid on 10-20 mm thick levelling mortar. Starting from the corners with control of the right angle. Tensioning the masonry cord to maintain the straight line of the wall.

Accurately level each pouring block in two directions. Checking the height every 3-4 elements with a 2-meter level. Maximum height difference in one layer of 2 mm.

Installation of vertical reinforcement

Vertical reinforcement in the pouring block introduced before laying or during installation. Bars φ12-16 mm length adapted to the height of the floor plus an overlap of 40d. Placement every 50-100 cm, compaction at corners and at openings.

Stabilization of bars with distance stirrups every 100-150 cm in height. In the case of a 24x24x50 formwork block, it is possible to run 2-4 bars in one chamber. Connecting bars by overlapping or welding.

Laying more layers

Successive layers of 15 cm shuttering block laid dry or with a thin joint of 3-5 mm. Tongue-and-groove system ensures self-centering of the elements. Offset vertical joints by 1/2 the length of the block.

Laying horizontal reinforcement 2φ8 in grooves or on the surface every 2-3 layers. Checking the verticality of the wall every meter in height – acceptable deviation of 5 mm/3m. Making lintels from U elements at a height of 210-220 cm.

Concreting the walls

Pouring formwork blocks with C25/30 concrete of S3-S4 consistency. Maximum aggregate size 8-12 mm for free flow. Concrete pouring in layers every 50-100 cm with compaction with a φ25-35 mm internal vibrator.

With high formwork block walls, concreting in stages every 2.5-3.0 m. Working breaks at the height of horizontal joints. The surface of the concrete in the working break smeared sharply for good adhesion.

Making installations

Electrical installations in the pouring block carried out in the chambers before concreting. Shielding pipes attached to the reinforcement or walls of the block. Electrical boxes stabilized with mounting foam.

Sanitary installations in the pouring block require drilling holes or leaving culverts. Holes φ50-150 mm made with a diamond drill after the concrete has set. Larger holes require additional reinforcement.

Finishing work

Surfaces of walls made of 24x24x50 shuttering block prepared for plastering by removing concrete streaks. Priming with an adhesion-enhancing preparation. Cement-lime plaster with a minimum thickness of 10 mm.

It is possible to leave the 15 cm shuttering block without plaster in the technical rooms. Face surface painted with concrete paints. For facades – ETICS insulation system directly on the hollow block.

Quality control

Systematic inspection during the installation of formwork blocks: wall geometry (vertical, horizontal, straightness), position of reinforcement (lagging min. 20 mm), tightness before concreting. Testing the strength of concrete on samples after 28 days.

Documentation of the installation of formwork blocks includes: construction logbook with entries of stages, protocols of acceptance of reinforcement before concreting, results of concrete tests. The instructions for use specify the permissible loads.

Shuttering block price – comprehensive construction system pricing

Formwork block price is shaped by a number of factors that affect the final cost of the construction. The calculation includes the cost of the blocks themselves, pouring concrete, reinforcement and labor. Formwork blocks price depends on the type of elements, dimensions, concrete grade and size of the order.

Cost structure of the shuttering system

The main component affecting the shuttering block price is the cost of the prefabricated elements themselves, accounting for 35-45% of the outlay. The price of a basic 50×20×25 cm hollow block is 4-6 zlotys/unit, which gives 32-48 zlotys/m² of wall. Shuttering blocks price of special elements (corner, U) is higher by 50-80%.

A significant share is the pouring block price of structural concrete C25/30 – about 25-30% of the cost. When using 0.08-0.10 m³/m² and the price of concrete 350-400 PLN/m³, the cost is 28-40 PLN/m². Reinforcement is another 15-20% of the outlay at a standard reinforcement rate of 15-25 kg/m².

Price list 2024 for formwork blocks

In 2024, a stabilization of prices in the building materials segment is observed. Flooding block price in 2024 per unit is: 15 cm hollow block – PLN 3.50-4.50, 20 cm hollow block – PLN 4.50-6.00, 24 cm hollow block – PLN 5.50-7.50. Shuttering block 24x24x50 price in summer season 2024 increased by 5-8% due to increased demand.

Comprehensive cost in 2024 shows that formwork block 24x24x50 price per m² of finished wall is 120-180 PLN with material and labor. Shuttering block 15 cm price of a complete partition wall is 90-130 PLN/m². In 2024, manufacturers offer discounts of 10-15% on total purchases for a house.

Price forecast for 2025

Predictions for 2025 indicate a price increase of 3-5% in the shuttering blocks segment. Shuttering blocks price in 2025 will depend mainly on cement and transportation costs. The introduction of environmental standards may raise production costs by an additional 2-3%.

CEM III low-carbon concrete blocks are expected to become widespread in 2025, and may be competitively priced. Formwork block price in 2025 may stabilize due to increased capacity of domestic factories. The development of automated production technology will reduce costs by 5-10%.

Cost comparison with other technologies

Economic analysis shows that shuttering blocks system price is 20-30% lower than monolithic technology with system shuttering. Comparing with traditional masonry – the cost is similar, but the execution time is 40% shorter. The system competes in price with frame technology for buildings up to 3 stories.

Relative to porous ceramic poured block, the price of a m² wall is 15-20% lower with comparable thermal performance. Large slab technology is 10% cheaper, but requires cranes with higher lifting capacity. Keramzite concrete systems have a similar price with better insulation.

Optimize construction costs

Reduction of expenditures for flooding block price possible by buying directly from the manufacturer, bypassing middlemen. Grouping orders with neighbors reduces transportation costs by 20-30%. Taking advantage of off-season promotional periods (November-March) gives discounts of 10-15%.

Savings with shuttering block 24x24x50 price by optimizing the design to a module of 25 cm – eliminating cutting. The use of typical hole dimensions reduces the consumption of special elements. Own transportation can reduce costs by 5-10%.

Labor and installation costs

Labor for laying the 15 cm formwork block the price is 30-50 zloty/m² depending on the region. Concreting with compaction 15-25 zł/m². Installation of reinforcement 40-60 zł/m² with standard degree of reinforcement.

Comprehensive construction of a wall of formwork blocks labor price 80-120 PLN/m² in the system of general contracting. Possibility to reduce costs by 40% when building with the economic system. Specialized teams offer a capacity of 30-40 m²/day.

Life cycle cost analysis

The investment in the shuttering block system price pays for itself by eliminating the cost of structural repairs. Durability of 100 years without degradation of the structure. The possibility of superstructure and expansion using the same technology.

Flood block building operation maintenance price lower by 20% due to massive construction. Lower heating costs due to thermal accumulation. No need to strengthen the structure when changing the function of the rooms.

The value of the flooded block building market price remains high. Monolithic construction valued by property buyers. Resistance to construction disasters increases the safety of the investment.

The final formwork hollow block 24x24x50 price of each project requires an individual calculation taking into account the specifics of the object, the location of construction and the scope of work. We encourage you to contact us in order to prepare a detailed formwork system offer tailored to your investment.

Here are just some of our realizations regarding our prefabricated products. This list includes only major investments on which our prefabs have appeared.

What are ?

Precast concrete units are prefabricated building components produced off-site that can be assembled into larger structures at the project site. These are standard, repetitive modules produced in series at industrial plants, which greatly speed up and facilitate construction work in various construction sectors.

What are the types of ?

Reinforced concrete. prestressed concrete, post-tensioned concrete – 20+ types

What is the use of ?

Rapid modular construction of various structures

What are the properties of the ?

Repeatability, precision, speed of installation, durability

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