Temporary Works and Modular Structures
Elite Precast Concrete's Duo™ interlocking concrete blocks provide a versatile, robust, and cost-effective solution for temporary works and modular structures.
Designed for rapid deployment and long-term reuse, Duo™ blocks are widely used across construction, infrastructure, industrial and civil engineering projects where flexibility and speed are essential.
As the sole UK manufacturer of Duo™ interlocking blocks, Elite Precast Concrete offers a proven precast system that allows temporary structures to be installed, adapted and removed with minimal disruption and without permanent foundations.
What Are Duo™ Interlocking Concrete Blocks?
Designed for Temporary and Modular Applications
Temporary works and modular structures often require fast installation, structural stability, and the ability to adapt to changing site conditions. Duo™ interlocking concrete blocks meet these requirements through a dry-laid, interlocking design that delivers mass, stability and repeat usability.
The system is ideal for applications where traditional in-situ concrete would be impractical, time-consuming or overly restrictive.
Why Choose Elite Precast
With decades of precast expertise, in-house engineering support and a proven delivery record on projects of every scale, Elite Precast is the partner specifiers trust. We pair robust, repeatable manufacturing with the flexibility to engineer bespoke solutions when a standard product will not do.
Key Applications
Duo™ interlocking concrete blocks are commonly used for:
Temporary retaining and pendine walls
Construction site segregation and barriers
Temporary storage bays and stockpile containment
Traffic management and site protection walls
Temporary blast, noise or security barriers
Modular industrial and infrastructure structures
Event, emergency or contingency works
Benefits
Key Benefits of Duo™ Blocks for Temporary Works
Rapid Installation & Removal – Structures can be assembled and dismantled quickly using standard lifting equipment, with no mortar, fixings or curing time required.
Modular and Reconfigurable – Blocks can be rearranged, extended, or relocated as project needs evolve, supporting phased or short-term site requirements.
High Stability Through Mass – The weight and interlocking profile of Duo™ blocks provide reliable resistance to lateral loads and site traffic.
Cost-Effective and Reusable – Blocks can be reused across multiple projects, reducing overall lifecycle costs and material waste.
Minimal Groundworks Required – Typically installed on a firm, level surface without the need for permanent foundations.
Commercial and Planning Advantages
Structures built using Duo™ interlocking blocks are generally classed as temporary or semi-permanent. As a dry-laid and relocatable system:
Planning permission may not be required (subject to local authority approval)
Structures can be adapted or removed at short notice
Business rates may be reduced compared to permanent constructions
Programme timescales are significantly shortened compared to in-situ concrete
Engineered for Your Environment
Design Flexibility and Structural Configuration
Duo™ blocks can be configured to create straight, stepped, curved or cornered structures, with height and layout determined by:
Block size and stacking arrangement
Applied loads and retained materials
Ground bearing capacity
Wind loading for freestanding or exposed structures
Proximity to site traffic and plant
Elite Precast Concrete provides stability and loading guidance to support safe and compliant temporary works design.
Durability, Fire Performance and Finish
Manufactured from high-quality precast concrete, Duo™ blocks offer:
Excellent resistance to impact, abrasion and weathering
Non-combustible performance suitable for fire-sensitive sites
Moulded or trowelled face finishes to suit operational or visual requirements
Concrete finish classified as basic in accordance with the National Structural Concrete Specification
Duo™ interlocking concrete blocks are manufactured in accordance with BS EN 1992-1-1:2004 – Design of Concrete Structures.
Safety and Installation Considerations
Structures must be built on a firm, level surface with adequate bearing capacity
Wind loading must be considered for taller or freestanding installations
Blocks should be inspected before lifting, stacking or reuse
Impact from mobile plant should be avoided
It is the customer's responsibility to ensure appropriate structural checks and temporary works assessments are completed prior to installation.
Why Choose Duo™ Interlocking Concrete Blocks for This Application?
Elite Precast Concrete offers expert guidance on the design and installation of temporary works and modular structures using Duo™ interlocking concrete blocks, including:
Layout and configuration advice
Stability and loading calculations
Technical support throughout the project lifecycle
Elite Precast Concrete – UK-manufactured precast solutions for flexible, reusable and efficient temporary works.