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Voided PT Slab

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MOQ : 1000 Meters

Voided PT Slab Specification

Installation Type
Post-Tensioned Installation

Features
High Efficiency, Cost Saving, Fire Resistant, Sustainable

Application
Flooring, Roof Structures, Large Open Spaces

Material Grade
C50/60 or Higher Concrete Grade with 1770 MPa PT Steel

Form
Precast/On-Site Cast

Purity
High Structural Integrity

Load Capacity
Up to 15 kN/m (Depending on Span & Thickness)

Usage
Commercial, Industrial, Institutional, Parking Structures

Color
Natural Concrete Grey

Machines Type
Post-Tensioning Equipment Required

Thickness
200 mm to 600 mm (Customizable)

Diameter
Void Diameter: 180 mm to 360 mm

Product Type
Voided PT Slab

Main Material
Reinforced Concrete with High Strength Steel Cables and Polymer Voids

Surface Treatment
Smooth/Polished

Size
Customizable as per Project Requirements

Weight
Reduced by up to 35% Compared to Solid Slab

Feature
Lightweight, High Load Capacity, Reduced Material Consumption, Enhanced Span

Shape
Rectangular with Spherical or Ellipsoidal Voids

Voided PT Slab Trade Information

Minimum Order Quantity
1000 Meters

Supply Ability
10000 Meters Per Month

Delivery Time
1 Months

About Voided PT Slab

Voided PT Slabs are used for construction of floor and foundation of concrete structures. Application of such slabs minimizes weight of buildings and ensures light weight of foundation. Length of these construction accessories are usually 25 feet and more. Besides saving construction cost, Voided PT Slabs eliminate the necessity of erecting beams during flat plate construction. These are also useful to minimize vibration level of concrete flooring. By reducing dead weight of floor, these slabs ensure better protection of structures against earthquake.

Exceptional Fire Resistance and Safety

Designed for rigorous structural demands, this voided PT slab ensures fire safety with resistance up to 2 hours, meeting stringent specifications for commercial and institutional projects. Its robust composition achieves high structural integrity while also enabling compliance with critical fire codes, making it a secure choice for large open spaces and heavy-duty construction.

Sustainability and Reduced Carbon Footprint

The innovative voiding system utilizes high-strength recycled polymers, significantly lowering concrete usage. This reduction directly decreases the overall carbon footprint of the building, making the slab an environmentally responsible choice. Additionally, the lightweight construction minimizes transportation energy, further enhancing its sustainability profile.

Superior Thermal and Acoustic Performance

The strategic inclusion of voids enhances not only the slabs thermal properties by decreasing its thermal mass, but also its acoustic insulation capabilities. These improvements provide better indoor comfort and noise control compared to conventional solid slabs, supporting a healthier and more pleasant environment in high-traffic buildings.

FAQs of Voided PT Slab:

Q: How is fire resistance ensured in the voided PT slab design?

A: Fire resistance is achieved through the use of high-grade C50/60 concrete and 1770 MPa post-tensioned steel, as well as the integration of recycled polymer voids. This combination ensures the slab withstands fire exposure for up to 2 hours, meeting safety requirements for diverse building types.

Q: What are the thermal and acoustic benefits of the voided PT slab?

A: The presence of spherical or ellipsoidal voids reduces the slabs thermal mass, improving heat insulation properties. At the same time, the unique slab geometry and dense concrete shell enhance sound insulation, resulting in quieter environments compared to conventional slabs.

Q: When and where is it suitable to use voided PT slabs?

A: Voided PT slabs are ideal for commercial, industrial, institutional spaces, parking structures, and large open areas requiring lightweight, high-load capacity flooring or roofing. Their customizable thickness and span make them versatile for various architectural and structural applications.

Q: What is the installation process for a voided PT slab?

A: Installation involves a combination of precast and in-situ casting techniques. Post-tensioning equipment is used on-site to tension high-strength steel cables within the slab, ensuring effective deflection control and maximizing load capacity across spans up to 18 meters.

Q: How does the use of voids contribute to sustainability and cost savings?

A: Voids reduce the overall volume of concrete required by up to 35%, which not only decreases material costs but also lowers embodied carbon, making the slab environmentally-friendly. Additionally, integrating recycled polymers for voiding material further improves sustainability and project economics.

Q: What maintenance is needed for voided PT slabs over time?

A: These slabs require minimal maintenance due to their integrated structural system and durable construction materials. Routine inspections for surface treatment and cable tension are usually sufficient to ensure long-term performance and safety.

Q: What customized options are available for voided PT slabs?

A: Clients can select custom thicknesses (200600 mm), void diameters (180360 mm), slab sizes, and surface treatments (smooth/polished) based on project needs. This adaptability enables optimal performance and aesthetic integration across varied building designs.

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