Aug 24, 2017We core drill hollow core precast slabs when needed. Two things need to be addressed. These slabs are supported by cables, embedded in the webs of the slabs, under tension, hence the name prestressed concrete. The cables are drawn to a design tens Apr 27, 2007I have a preference for Hollow Core slabs over other methods, the main reason is the speed, installing the slabs is faster than any other flooring system, once placement starts, even before the slabs are complete, the crew can be. Hollowcore plank is used in a wide range of buildings as rooffloor components. The precast concrete slabs are manufactured in standard 48 widths, are available in thickness of 8, 10, 12, 16, and are cut to length for each project to meet specific building or application needs. rating for the precast hollow core slabs: A) Table 2. (1) indicates a minimal thickness of 124 mm of equivalent thickness is required as specified under subsection 1. The equivalent thickness of the 200 mm (8) hollow core slab is 125 mm (therefore exceeding the 124 mm minimum). Hollowcore is manufactured on long line steel casting beds using extrusion, slipforming or flow forming machines. The process begins with design of the slabs according to project requirements, through bed planning, manufacture, curing and removal to the stock yard. Information on advantages of hollowcore, precast floors, hollow core floors, precast hollowcore floors, prestressed hollow core floors, hollow core flooring solution, hollow core floor construction and hollowcore equipment by hollowcore machinery manufacturer, UltraSpan Technologies, Canada. We launched in 2008 to supply high quality precast concrete systems, including hollowcore slabs, ribandblock slabs mainly to the residential property developments. The quality of our precast concrete elements and installations facilitated our later successful entry into statedriven civilengineering and large property projects. Our hollowcore slabs continue to help accelerate and mitigate risks on projects. We are known for the very high standard of our slabs that are manufactured at our factory in Polokwane using Spiroll extrusion technology from the United Kingdom. To ensure high productivity levels, we have our own workshop and maintenance. Apr 15, 2016How the Hollow core slabs are transported to site and installed? Watch the video of a live project execution. TopFloor is a name built on a concrete foundation of quality and dependability. Specialising in concrete, hollowcore and precast floor slabs and walls. Maximize space in any house plan with Hollowcore Roof and Floor Systems. Create extra living and storage space by using a home's entire footprint, even neglected space available under a garage, porch or stoop. As more residential covenants dictate restrictions, Hollowcore helps home owners gain more usable space. Hollow Core Concrete industry leaders in precast concrete technology. Since its establishment in 1988 Hollow Core Concrete has developed a reputation for excellence in the provision of cost efficient precast structural systems. Maximize space in any house plan with Hollowcore Roof and Floor Systems. Create extra living and storage space by using a home's entire footprint, even neglected space available under a garage, porch or stoop. pdf Hollowcore Residential Applications Brochure (535 KB) For more information about this product, please contact our Hollowcore. Jul 17, 2014Hollowcore flooring slab is a concrete flooring material which exploits the strength and durability of precast concrete, whilst reducing the weight which can be its main drawback. The term hollow core refers to cylindrical voids which run internally down the length of the precast slabs, thereby reducing the weight of the slab, typically by about 35 per cent. Hollow core slabs, or plank, are precast prestressed concrete components typically used as structural floor or roof deck systems in single and multistory buildings. To reduce weight and provide a more efficient product, the planks are cast with continuous voids that run the length of. No other building system accommodates creativity and practicality like Spancrete hollowcore floor and roof building systems. Serving as a combined deck and ceiling system, the planks erect quickly to reduce onsite labor needs and are capable. Hollowcore can be used either as a solid floor or spaced to provide an even more economical flooring solution. Learn more about the Stahlton Hollowcore Read the Safe Operating Procedure on the use of timber infills applicable for the spaced hollowcore option. New Stahlton Fibrecore Hollowcore Concrete Flooring. Concrete Flooring is one of the key elements of a secure investment in any building, contributing to the structures safety, durability and thermal performance. Having introduced our first hollowcore floor slab in 2001, Spanwright now offer a wide variety of depths in both reinforced and prestressed hollowcore. Hollowcore concrete slab is a versatile precast element. Hardly any building materials available today offer the economy, flexibility and reliability of precast, prestressed concrete. Hollowcore advantages The advantages of Hollowcore slabs. There are several advantages of the precast hollow core slab or prestressed hollow core slab such as. Welcome to Coreslab Structures. Since 1975, we have been a premier producer of precastprestressed concrete products. Over the last four decades, we have emerged as a major supplier of structural, architectural and hollow core solutions to markets in. HOLLOW CORE SLABS SECOND EDITION by Donald R. Becker Computerized Structural Design, S. Prepared for the PCI Hollow Core Slab Producers Committee This document is intended to cover the primary design requirements for hollow core floor and roof systems. Ininstances wherethe designis nodifferent thanfor. Hollowcore slabs have excellent span capabilities, achieving a capacity of 2. The longspan capability is ideal for offices, retail or car park developments. Units are installed with or without a structural screed, depending on requirements. Slabs arrive onsite with a smooth prefinished soffit. Slab only 310 50 28 380 52 31 Hollowcore Plus Carpet Pad 314 50 70 384 52 73 Precast Hollowcore concrete enjoys wide use in various residential, commercial and municipal applications that require a floor or roof system using standard components, which are manufactured in a controlled environment. Here at Forterra, we provide Bison Hollowcore Floors. Our highquality Hollowcore Floors have sound reducing qualities and fire resistance which are perfect for apartments. For more information visit our website. A Hollow Core plank is a prefabricated slab of prestressed concrete typically used in the construction of floors roofs in residential and commercial applications. The slabs are typically 4 feet wide with standard thicknesses of 8 and 12. The planks are produced in our plant using an Ultra Span machine. Our Hollowcore Slabs are typically used as floor members in hotels, motels, college dormitories, self storage facilities and multimillion dollar mansions. Our slabs are also used as roof members for warehouse projects, and as ramp members on parking garages. Precast hollowcore provides a costeffective efficient floor and roof system. The slabs facilitate the completion of a building in the least amount of time possible, at the most economical cost, without sacrificing quality or the integrity of Exeed Precast hollow core slabs are prestressed concrete elements that are cast with advanced extrusion technology to be used as floor and roof deck systems, partition walls as well as boundary wall panels. OReilly Concrete Hollowcore Thermal Floor slabs are prestressed concrete elements with continuous longitudinal voids formed using polystyrene void formers. Innovative casting system in the manufacture of prestressed flooring units gives many advantages compared to traditional hollow core units: better sound resistance; improved thermal. Hollow core slabs are precast, prestressed concrete elements that are generally used for flooring for both commercial buildings and homes. Hollowcore slabs are typically used in the construction of upper floors in apartments and flats, commercial buildings, and larger houses. They deliver outstanding thermal properties and offer improved thermal efficiency in all developments. Precast prestressed concrete enjoys wide use in all types of residential structures; particularly multiple units where the repetitive use of standard components manufactured in a factory can be fully utilized. The most common floor and roof elements employed are 205 mm deep untopped hollowcore units. Elematic SA (Pty) Ltd manufactures precast, prestressed concrete hollow core concrete slabs for the South African market. We satisfy the demand for high quality, reliable concrete products that are available within short lead times in an industry where the demand for building products is almost insatiable and completion times are short. Hollowcore slabs are used predominantly for floor and roof deck components for various structures such as residential, hotel, office buildings, schools, and prisons. ACOUSTICAL PROPERTIES OF HOLLOW CORE FLOOR SLABS 7. 1 Glossary Airborne Sound sound that reaches the point of interest by propagation through air. Background Level the ambient sound pressure level existing in a space. Decibel (dB) a logarithmic unit of measure of sound pressure or sound power. Zero on Oneway joist slab (Ribbed slab) It consists of a floor slab, usually 50 to 100mm thick, supported by reinforced concrete ribs (or joists). The ribs are usually tapered and are uniformly spaced at distances that do not exceed 750mm. The ribs are supported on girders that rest on columns. Hollowcore Flooring is a Precast Prestressed Concrete Slab with tubular voids which run through the full length of the slab, thereby reducing the weight of the unit. With the benefit of prestressing and low self weight, longer spans can be achieved for the same loads or greater loads for the same depths. Building with Confidence 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 multistory apartment buildings. What is a Precast Hollowcore Concrete slab? Hollowcore flooring is an efficient and modern flooring solution that can be implemented within a great many structures. Comprised of precast concrete with lengthwise voids, Hollowcore is the ideal solution for those who are looking to take advantage of the strength of traditional concrete while simultaneously enjoying a low weight. Hollowcore floor planks are precast concrete elements with continuous longitudinal voids providing an efficient lightweight section. When grouted, the shear key between adjacent planks ensures that the individual planks behave similarly to a monolithic slab. Aug 17, 2018This uniqueness manifests itself in a suite of benefits in structural quality, cost savings, safety, and more. One of our trademarks is the inhouse manufacturing of precast hollowcore slabs. As the heroes of flooring, roofing, bridges, and mezzanine systems, there are 7 main advantages of precast hollowcore slabs. Lafarge Precast Edmonton Lafarge Precast Hollowcore Slabs. Precast Concrete hollowcore slabs provide long spans with cross sections that reduce the height of the building, saving material cost, and the inorganic composition of precast concrete Hollowcore slabs enhances fire protection. Our Sales team can help determine which sizes, shapes, and. Hollowcore is primarily used as a floor and roof deck system and Hollowore has many innate qualities such as being durable, noncombustible, mold and mildew proof, along with providing acoustical and vibration dampening. Hollowcore is produced in 8inch, 12inch and 16inch thicknesses with 4foot being the standard width. Quinn Precast hollowcore flooring units are machine cast concrete slabs, with tubular voids extending the full length of each slab, creating a light weight building unit, saving money on materials and transport costs. Established in 1983 Echo boasts more than 30 years experience in the design manufacture, delivery and installation of hollowcore floors and walls, reinforced hollowcore concrete floor slabs and prestressed hollowcore concrete floors, security and retaining walls. Highly customisable, available in 150 250 mm variations, 1200mm max width. OReilly Thermal flooring is a premium product made using Kore Expanded Polystyrene formers for maximum sound and heat resistance. It is suitable for all applications. Hollowcore slabs vary by depth, length and loading performance with the standard width of a slab being 1200mm. The depth of each slab usually ranges from 110 mm to 400 mm with spans typically available up to 200 meters.