prestressed hollowcore concrete planks fire

PRESTRESSED HOLLOW-CORE CONCRETE PLANKS Fire Engineering

Dec 01, 1999  The hollow-core design uses less concrete than a poured floor and thus is economical. The prestressed concrete planks, prevalent in motel

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Construction Concerns: Hollow Core Precast Concrete Plank ...

Dec 22, 2014  12.22.2014. By Gregory Havel. Photo 1 shows a close-up of a truckload of hollow core precast concrete plank being delivered to a construction job site. These plank

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Hollow core plank, prestressed hollow core slab, precast ...

Hollow Core Plank Mid South Prestress is the largest producer of precast hollow core plank concrete in the mid-southern United States. Using an extruded process, hollow core plank (or hollow core slab) is a plant-manufactured prestressed concrete slab with continuous cores, or voids, which considerably reduces weight (up to 50% compared with a poured-in-place flat slab) and cost.

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Hollowcore Precast Concrete – Concrete Planks Slabs ...

Hollowcore can be used in virtually any building application that calls for strength, durability and speed of construction and is a crucial part of the structural integrity in multi-family residential, manufacturing and recreational facilities, retail, schools, municipal and commercial buildings.

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Hollow Core Plank - knightprecast

Hollowcore Plank. Knightcore (Hollowcore) plank is a precast, prestressed, concrete plank manufactured by a precision, extrusion process, from zero slump concrete providing outstanding dimensional control and uniformity. Slabs are cut to length to assure dimensional accuracy and smooth end finish. Hollowcore plank weighs less per square foot ...

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HOLLOWCORE PLANK - Precast Concrete Products

Prestressed concrete has been used for over 30 years in commercial and highway construction projects where concrete must span long distances between supporting structures. Precast, Prestressed Hollowcore Planking is used primarily as a floor, roof, mezzanine area or tilt-up wall panel in commercial, institutional and industrial buildings.

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Hollowcore FAQs - PCI

Like all precast, prestressed concrete products, hollowcore slabs have excellent fire resistance. Depending on thickness and strand cover, ratings up to a 4-hour endurance can be achieved. A fire rating is dependent on equivalent thickness for heat transmission, cover over the prestressing strand for strength in a high temperature condition and ...

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NiCore™ Hollow Core Plank Precast Concrete Floor Panels

Our NiCore™ hollow core concrete is a precision-manufactured, precast/prestressed concrete plank produced with high-strength (5,000 psi minimum) concrete. You get an affordable, reliable and versatile hollow core plank (also known as dox plank) that offers a host of advantages over other traditional building materials.

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SECTION 03 41 00 PRECAST STRUCTURAL CONCRETE

a. Croup C, Category C2 – Prestressed Hollowcore and Repetitively Produced Products. B. Design Standards: Comply with ACI 318 (ACI 318M) and design recommendations in PCI MNL 120, “PCI Design Handbook – Precast and Prestressed Concrete,” applicable to types of precast structural concrete

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Hollowcore Plank Offers High Fire Ratings

Feb 13, 2020  Hollowcore maintains excellent fire resistance with ratings up to three hours. According to the Precast/Prestressed Concrete Institute, the fire rating is dependent on equivalent plank thickness for heat transmission, cover over the

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HOLLOWCORE PLANK - Precast Concrete Products

Prestressed concrete has been used for over 30 years in commercial and highway construction projects where concrete must span long distances between supporting structures. Precast, Prestressed Hollowcore Planking is used primarily as a floor, roof, mezzanine area or tilt-up wall panel in commercial, institutional and industrial buildings.

get price

Hollowcore Precast Concrete – Concrete Planks Slabs ...

Hollowcore can be used in virtually any building application that calls for strength, durability and speed of construction and is a crucial part of the structural integrity in multi-family residential, manufacturing and recreational facilities, retail, schools, municipal and commercial buildings.

get price

Hollowcore FAQs - PCI

Like all precast, prestressed concrete products, hollowcore slabs have excellent fire resistance. Depending on thickness and strand cover, ratings up to a 4-hour endurance can be achieved. A fire rating is dependent on equivalent thickness for heat transmission, cover over the prestressing strand for strength in a high temperature condition and ...

get price

Hollow core plank, prestressed hollow core slab, precast ...

Hollow Core Plank Mid South Prestress is the largest producer of precast hollow core plank concrete in the mid-southern United States. Using an extruded process, hollow core plank (or hollow core slab) is a plant-manufactured prestressed concrete slab with continuous cores, or voids, which considerably reduces weight (up to 50% compared with a poured-in-place flat slab) and cost.

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NiCore™ Double Tee Fire Resistance Nitterhouse Concrete

As noted in the PCI Design Handbook and Design for Fire Resistance of Precast/Prestressed Concrete, the equivalent solid thickness of a hollow-core slab is obtained by dividing the net cross-sectional area by the slab width. It is common practice to determine the equivalent thickness of the entire assembly of the NiCore™ Plank, grouted keyway ...

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Solutions for Openings in Hollow Core Floors STI Firestop

Aug 15, 2019  This compression strengthens the hollow-core unit and allows it to extend along greater spans. The risk of larger openings in hollow-core floors is the increased potential for cutting one or more of the prestressed strands embedded within the concrete, which could serve to

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Atlanta Fire Rating Guidelines - Precast Concrete Building ...

FIRE RATING “Coreslab” hollowcore plank by Coreslab carries a 1 hour fire rating in all applications by passing the test requirements set forth by ASTM E-119 as performed by U.L. Laboratories (Note 1). Criteria for “Coreslab” to carry a 2 hour fire rating is found in chapter 7 of the International Building Code 2000, Sections 703.3 and 720.

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Construction Concerns: Hollow Core Precast Concrete Plank

Hollow core precast concrete plank are actually prestressed concrete. In photo 1, the ends of the steel cable tendons are visible as dark dots near the bottom of each plank. Each plank has a slight upward curve when it is shipped after the concrete has cured because of the tension in the tendons. This upward curve straightens out after the

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6 ELEMATIC Hollow-core - Girder-Slab

Prestressed Concrete Hollow-core Plank ELEMATIC ... The IBC code prescribes fire ratings to any hollow-core plank section. Since 2000, the IBC code has replaced the BOCA, SBC and UBC model codes in many states. The two criteria that are measured to determine the fire rating are: 1. Equivalent concrete thickness – 4.6" inches is required for 2 hrs

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HOLLOWCORE - Oldcastle Infrastructure

Hollowcore plank + 21/ 8” concrete topping has 3-hour fire rating. Dream Bigger Hollowcore Plank is compatible with standard construction materials such as concrete, steel, and masonry to extend project possibilities. Break Free Hollowcore Plank is unsurpassed for its ability to provide clear spans and open, column-free interior spaces. Enjoy ...

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Ultraspan Hollow Core Machinery Precast Concrete Plant

Hollow Core Plank. Hollowcore Plank . Knightcore (Hollowcore) plank is a precast, prestressed, concrete plank manufactured by a precision, extrusion process, from zero slump concrete providing outstanding dimensional control and uniformity. Slabs are cut to length to assure dimensional accuracy and smooth end finish. Hollow Core Plank ...

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B+.,-.

Fire resistance Precast components installed in an office project at the Tally Ho Business Park. ... the manufacture of precast and prestressed concrete products. We have demonstrated, in hundreds of projects, versatility, quality and confidence ... project unless designed by Hollow Core Concrete Pty. Ltd. The Hollow Core planks shall be ...

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Hollowcore Precast Concrete Floors Planks Slabs Milbank

The UK’s leading manufacturer of pre-stressed Hollowcore Concrete Floors. Milbank hollowcore floors (also known as slabs or planks) are pre-stressed concrete slabs with internal tubular voids, creating an efficient and lightweight plank that is far lighter than

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Modeling the response of precast, prestressed concrete ...

precast, prestressed concrete hollow-core slabs under real-istic fire, loading, and restraint is not well studied. Numerical studies Breccolotti et al.,8 Fellinger et al.,12 Dotreppe and Frans-sen,17 Chang et al.,18 and Min et al.19 conducted numerical studies on precast, prestressed concrete hollow-core slabs in fire.

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Response of precast prestressed concrete hollowcore slabs ...

Mar 15, 2015  The fire resistance tests were conducted on six PC hollowcore slabs designated as Slab 1 to Slab 6. All six slabs were of 4 m in length, 1.2 m in width and 200 mm in depth, and had six cores and seven prestressing strands as reinforcement.The cores in the slabs were of 150 mm diameter, with 25 mm concrete

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Fire Resistance - Precast and prestressed concrete

Prestressed Concrete (PCI MNL 124-89)38 that they qualify for the required fire endurance. Readers can obtain more detailed information from that manual on fire resistance of hollow core slab assemblies as well as information on fire resistance of concrete

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Hollowcore Residential Applications - County Materials

Hollowcore systems are prestressed concrete plank that serve as both a readymade sub floor for a garage, and a ceiling for additional living areas. Creates multi-functional living and storage rooms. Insulates between basement floor and first floor living spaces. Meets IBC and UBC standards, and fire

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Hollow Core Plank - knightprecast

Hollowcore Plank. Knightcore (Hollowcore) plank is a precast, prestressed, concrete plank manufactured by a precision, extrusion process, from zero slump concrete providing outstanding dimensional control and uniformity. Slabs are cut to length to assure dimensional accuracy and smooth end finish. Hollowcore plank

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Atlanta Fire Rating Guidelines - Precast Concrete Building ...

FIRE RATING “Coreslab” hollowcore plank by Coreslab carries a 1 hour fire rating in all applications by passing the test requirements set forth by ASTM E-119 as performed by U.L. Laboratories (Note 1). Criteria for “Coreslab” to carry a 2 hour fire

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2 - Precast Concrete - Architectural Precast Solutions

2. Closures parallel to prestressed concrete members (whether masonry, windows, curtain walls or others) must be properly detailed for appearance. 3. Floor slabs receiving cast-in-place topping. The elevation of top of floor and amount of concrete topping must allow for camber of prestressed concrete

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Hollow core UL fire assemblies

Dec 18, 2014  Help and advice on how to specify prestressed hollow core concrete slabs including some of the most common issues that you might encounter from a precast industry insider with over 35 years of experience. ... When it comes to hollow core plank, ... makes specifying hollow core fire

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Construction Concerns: Hollow Core Precast Concrete Plank

Hollow core precast concrete plank are actually prestressed concrete. In photo 1, the ends of the steel cable tendons are visible as dark dots near the bottom of each plank. Each plank has a slight upward curve when it is shipped after the concrete

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SECTION 03 4113 PRECAST HOLLOW CORE PLANKS PART 1

Feb 03, 2021  PRECAST HOLLOW CORE PLANKS PART 1 GENERAL 1.1 SECTION INCLUDES A. Roof planks. B. Floor planks. C. Accessories. 1.2 RELATED REQUIREMENTS A. Division 01 – General Requirements. B. Section 03 3000 – Cast-in-Place Concrete

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Hollowcore Plank DIVERSAKORE

Hollowcore planks are advanced precast, pre-stressed concrete elements that are generally used for flooring and walls. Hollowcore slab has become an increasingly popular solution, and is commonly

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Products – Spancrete SMA

Spancrete ® hollowcore plank has been used for more than one billion square feet of floor and roof construction worldwide. It is the most economical way to obtain long spans with minimal depth and a capacity for heavy loads. Plank provides flat ceiling and floor surfaces, high fire

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PRECAST CONCRETE SOLUTIONS 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. There are several advantages of the precast hollowcore slab or prestressed hollowcore

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About Say-Core - Hollow Core Plank

About. SAY-CORE 6″, 8″, 10″, and 12″ planks are extruded precast/prestressed hollow core 4′-0 wide slabs which are fabricated using the state of the art SAY-CORE extrusion process and machinery. Slabs are manufactured by skilled PCI Certified Plant technicians at our plant under controlled conditions using SAY-CORE

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