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PRESTRESSED FLOORING
Beam and Block Flooring
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Hollowcore Flooring
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BESPOKE PRECAST CONCRETE SOLUTIONS
PRESTRESSED AND PRECAST
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We are part of the Thomas Armstrong Group
Prestressed Precast Concrete Hollowcore Floors (also known as Slabs or Planks)
Hollowcore Flooring are prestressed precast concrete slabs featuring continuous cylindrical voids which run internally down the length of each precast slab. The number of voids varies depending on size and strength, with a key advantage of reducing the overall weight when compared to other floor slabs of equal thickness and strength.
The lightweight nature of this precast floor system offers additional benefits due to significant saving in transportation, material and labour costs. It also enables longer spans with a decreased depth ratio to be manufactured without compromising on strength and durability. Hollowcore Flooring can also be known as slabs or planks.
Hollowcore flooring is suitable for a range of applications including commercial buildings, car parks, offices, apartments and in all types of housing. Each precast floor slab is placed side by side and sealed with a grouted joint to provide a durable flooring solution which has a fast installation and can support even heavy loads. Designed to easily fit into any structural system, whether it is steel, in-situ, precast or concrete masonry, at ACP (Concrete) Ltd our precast concrete planks are typically 1200mm wide and are available in standard depths from 150mm to 500m. The spans of Hollowcore floor can be up to 20.5m.
Prestressed precast concrete floors provide our customers with a quick and cost-effective form of flooring construction which enables the Principal Contractor to progress in most cases to the next level of construction within a day of the Hollowcore Flooring being installed, saving you time and money.
All our prestressed precast concrete planks are all CE marked and designed and manufactured to Eurocode 2 industry standards.
APPLICATIONS
Suitable for commercial and residential housing including:
- Commercial buildings
- Car Parks
- Offices
- Apartments
ADVANTAGES
- High loading capacity, can be used over long spans
- Quick installation
- Cost-Effective
- Environmentally friendly system
- Excellent sound and vibration barrier
- Provides immediate safe working platform
- Adverse Weather conditions
CE CERTIFICATIONS
- CE38 - 150mm Hollowcore Prestressed Precast Flooring
- CE39 - 200mm Hollowcore Prestressed Precast Flooring
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DISCLAIMER
Please note that any information provided is to be used as a guide only. Any lifting/handling operations should be carried out by trained and competent personnel only. ACP (Concrete) Limited will not be held responsible for any damage or injuries in connection with handling or installation not carried out by ACP (Concrete) Limited.
High Performance at Low Cost
At ACP (Concrete) Ltd, our prestressed precast concrete floor slabs or planks are manufactured off-site in controlled factory environment conditions to recognised industry standards (EC2).
Extruded from high quality steel moulds using quality assured engineering grade concrete (60 N/mm²), guarantees the quality and performance of all our prestressed precast concrete flooring products. It also enables us to supply high performance Hollowcore Flooring at low cost.
Available as supply only or supply and install, all our precast concrete floor slabs are delivered nationwide.
Fast and Simple Installation
The prestressed concrete floor slabs are delivered on-site already ‘made to measure’ and ready for immediate use. Installation is fast and straightforward as the prestressed precast concrete floor slabs are put into place quickly and safely using a crane; therefore, reducing the time spent by workers on-site. The concrete slabs are then simply fixed by following the design drawing provided that shows each unit with an individual code reference to ensure quick and easy identification for a simple installation.
Horizontal Joints are then sealed using C25 concrete to provide a finished floor area. Installation is largely independent of weather conditions and helps prevent unnecessary delays to your project.
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Fast and Simple Installation continued
Due to off-site manufacturing and readily available installation, there is a minimum amount of curing of concrete required on site, making this an ideal cost-effective flooring solution.
Prestressed precast concrete floors provide our customers with an immediately available structure as a working platform for follow-on trades. This a quick and cost-effective form of flooring construction which enables the Principal Contractor to progress in most cases to the next level of construction within a day of the Hollowcore Flooring being installed, saving you time and money. The voids are sometimes used as service ducts for plumbing, electrical cable or data transmission systems.
Durable
The term "prestressed concrete" (also known as pre-tensioned concrete) means that concrete is poured onto steel strands which have been tensioned. After the concrete has reached the required strength the strands are de-tensioned. The cured concrete adheres and bonds to the strands and when the tension is released it is transferred to the concrete as compression by static friction. This gives the panels additional strength and enables them to flex under load without detriment.
By utilising the inherent strengths of the two materials, the performance of a prestressed panel can far exceed that of a precast section reinforced with a similar amounts of reinforcing bar or mesh.
The durability is also enhanced. In a standard reinforced section, the reinforcement only really comes into play once the concrete is in tension or has hairline cracks. In prestressed units the reinforcement is “working” in all conditions.
Overall precast concrete structures have longer service years and require minimal repairs and maintenance.
High sound Resistance and Fire Resistance
Hollowcore floors have a lower sound transmission when compared through the equivalent solid slab (any % available), therefore making this ideal for additional sound proofing particularly suitable for schools, apartments and businesses.
Our floor slabs comply with Euro code 2 and have a 1hr fire rating.
Thermal Efficiency
Hollowcore flooring offers excellent thermal characteristics which results in reducing energy consumption use in heating and cooling of structures.
Product Sizes & Performance Specifications
Wide range of sizes to suit various spans and loads
At ACP (Concrete) Ltd, our prestressed precast concrete floor slabs are manufactured in a range of longer sizes to suit various spans and loads, providing flexible and tailored solutions to suit each application.
One advantage with this flooring solution is due to the lower weight created by the symmetrical voids. This enables longer spans to be manufactured, which is particularly beneficial if supporting columns are unfeasible, undesirable or in applications such as multi-storey car parks. It can also provide valuable additional space by reducing the number of beams and columns required for support. The voids are sometimes used as service ducts for plumbing, electrical cable or data transmission systems.
There are various sizes available. Please click on the relevant size to view the information:
Click to download and view Hollowcore Flooring Specifications
Product Specification
Product Specification
Product Specification
Product Specification
150mm Standard
150mm Dense
200mm Standard
200mm Dense
250mm
300mm
320mm
350mm
400mm
500mm
For Span Load Tables Please Contact The Design Team on 01900 814659.
Brief Overview: How to install Prestressed Precast Hollowcore Flooring
Hollowcore Flooring can be installed directly from the delivery vehicle using a crane to its final position due to each unit being referenced individually to suit the approved ACP (Concrete) Limited design drawing.
The units are lifted in using the choke hitch method with one unit in each individual bay of the drawing having lifting pins cast into them to place it into its final position.
Once all the units have been installed the C35 concrete grout is placed in the joints to tie the floor together.
To view a more detailed Step by Step Guide of the Installation, Safe Handling and Delivery of Floors, Stairs and Landings, please click here.
DISCLAIMER
Please note that any information provided is to be used as a guide only. Any lifting/handling operations should be carried out by trained and competent personnel only. ACP (Concrete) Limited will not be held responsible for any damage or injuries in connection with handling or installation not carried out by ACP (Concrete) Limited.
Specifications and Literature Downloads
Safety / COSHH
Safety / COSHH
Click on the relevant option to view pdf
ACP (Concrete) Ltd - Material Health & Safety Datasheet
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For more information click on the relevant box.
Our Prestressed and Precast Concrete Design and Installation Service
At ACP (Concrete) Ltd we offer professional, comprehensive and reliable prestressed and precast concrete design and installation service on all our products. Available to all our clients and customers, these services give you the peace of mind of working closely with an experienced company you can trust to deliver every stage of your project.
Supporting you at every part of the process: design, construction and installation, our dedicated team of structural engineers and precast installers have extensive experience of delivering a wide range of prestressed floors, precast wall and stairs projects nationwide.
Design Service
Our experienced in-house engineering department offer a complete design and calculations service providing you with full construction drawings to deliver high quality precast solutions. Our design services including cantilever wall foundation design, precast wall panel design or design of bespoke precast products where our standard products don’t meet your requirements.
Our dedicated team will work closely with you to ensure that the precast concrete design meets your specific requirements, whilst ensuring that your project is designed to the highest standard whilst still providing a fit for purpose cost effective solution.
Installation Service - Part 1
All our precast concrete products are delivered and installed by the same professional team ensuring your project runs efficiently with people who fully understand your requirements. The team’s knowledge and experience of the complete precast and prestressed installation process is second to none, ensuring our products are installed on-site correctly and your project remains on-time and to budget.
We employ dedicated specialist reliable subcontract fixing precast teams who have worked closely with ACP (Concrete) Ltd over many years. Our Contract Manager's will assume control and co-ordination of the works on the placement of your order. This will ensure the free flow of information and design approval being achieved within the timescales.
Installation Service - Part 2
Our precast concrete wall solutions offer quick and simple installation which is usually carried out using either a crane or telehandler. The final product and method of installation will generally be determined by any site restrictions, the proposed sequencing of work and which product will provide the desired solution most economically.
Alternatively, help and advice for the safe handling and installation of precast units can be supplied as documentation and if required a supervisory site visit can also be arranged.
Site Specific Risk Assessments
Site Specific risk assessments and method statements are available following a prestart visit to site, which will be logged with all relevant parties, prior to commencement of work on-site.
Our experienced team will work to the site-specific method statement in conjunction with the detail of the approved design layout drawing ensuring your project is delivered to the highest standards of safety.
Site Specific Requirements
Site specific requirements, such as hard standing areas, movement of materials to create space and overhead obstructions will be identified and discussed with the Site Manager prior to commencement of installation work and these requirements will form part of the method statement.
Please contact us to discuss any of your design and installation requirements.
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Registered Office:
ACP (Concrete) Ltd
Part of the Thomas Armstrong Group
Workington Road
Flimby
Maryport
Cumbria
CA15 8RY
T: 01900 68211
Registered No: England 2212402
VAT Number: 533724550