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Revise your company’s quality manual to reference SRPS EN 13670. Include its requirements in subcontractor agreements.
| Mistake | Consequence | SRPS EN 13670 Solution | |---------|-------------|------------------------| | No execution class defined | Quality control too strict or too lax | Specify EXC in project documents | | Using only design drawings for construction | Missing reinforcement details | Prepare execution drawings | | No pre-concreting checklist | Placing concrete over contaminated formwork | Use standard inspection form (Annex A) | | Striking formwork too early | Major cracks or collapse | Measure actual concrete strength | | No curing records | Surface cracks, low durability | Log start/end dates and method |
Many construction liability insurance policies require adherence to applicable standards. Deviating from SRPS EN 13670 can void coverage in the event of a claim.
Separate quality personnel within the contractor's organization perform random checks.
SRPS EN 13670 sets strict limits on geometrical deviations. Even if concrete is strong, if it is built in the wrong place, it fails the standard.
It defines two tolerance classes:
Common tolerances include deviations in cross-section dimensions (e.g., a wall thickness) and vertical alignment (plumbness).
SRPS EN 13670 applies to all types of concrete structures, including: srps en 13670
SRPS EN 13670 is the official Serbian standard for the execution of concrete structures, providing the fundamental technical requirements for on-site construction and the assembly of precast elements. As a direct adoption of the European standard EN 13670:2009, it serves as the essential link between structural design (governed by Eurocodes like SRPS EN 1992) and the actual physical construction of a building.
This article provides a deep dive into the scope, key requirements, and practical application of SRPS EN 13670 in the Serbian construction industry. 1. Scope and Field of Application
The standard SRPS EN 13670:2012 applies to all permanent and temporary concrete structures. It covers: In-situ concrete works: Traditional cast-in-place concrete.
Prefabricated elements: The assembly and connection of precast concrete parts on-site.
Material Types: While focused on normal and heavyweight concrete, it also offers guidance for lightweight aggregate concrete and structures using special technologies or innovative designs. What it does NOT cover:
Concrete Production: The manufacturing and delivery of the concrete itself is governed by SRPS EN 206 .
Precast Factory Production: The factory-based making of precast elements is covered by specific product standards. Revise your company’s quality manual to reference SRPS
Health and Safety: It does not define safety regulations for workers on site. 2. The Connection Between Design and Execution
One of the most critical aspects of this standard is its role as a "handshake" between the designer and the contractor.
Eurocode 2 Assumption: The design rules in Eurocode 2 (SRPS EN 1992) are built on the fundamental assumption that the execution of the project will comply with SRPS EN 13670.
Execution Specification: The standard requires a project-specific "execution specification" that details exactly how the structure should be built. This includes dimensions, concrete classes, reinforcement details, and surface finishes. 3. Key Technical Requirements
SRPS EN 13670 is organized into several technical modules that guide the builder through each phase of construction: Execution Management
This section defines Execution Classes (EXC). Depending on the complexity and importance of the structure, projects are assigned a class (typically 1, 2, or 3). Higher classes require more stringent quality management, documentation, and inspection. Formwork and Falsework
Requirements for the design and construction of molds (formwork) and their supports (falsework). It ensures they are stiff enough to hold the weight of wet concrete and achieve the required surface finish. Reinforcement and Prestressing To fully comply with SRPS EN 13670 ,
Covers the handling, bending, and fixing of steel bars. It specifies: Minimum concrete cover. Rules for splices and welding.
Protocols for tensioning and grouting of prestressing tendons. Concreting Operations Detailed rules for the entire process, including: Placing: Ensuring no segregation of the concrete mix. Compaction: Removing air voids via vibration.
Curing: Protecting the concrete from drying too quickly or freezing to ensure it reaches its intended strength. Geometrical Tolerances
The standard provides two classes of tolerances (Class 1 and Class 2). These define the acceptable "deviations" in the final structure's dimensions—such as the verticality of columns or the thickness of slabs—to ensure the building remains safe and functional. 4. Implementation in Serbia
In Serbia, the Institute for Standardization of Serbia (ISS) oversees this standard. While the core text is an identical implementation of the European version, it is integrated into the broader Serbian legal framework, such as the Pravilnik za građevinske konstrukcije (Technical Regulations for Building Structures).
As of September 2024, a full Serbian translation was published to replace the previously used English-language versions, making it more accessible to local contractors and engineers. Conclusion
SRPS EN 13670 is the "Bible of Workmanship" for concrete in Serbia. By standardizing everything from how a formwork is propped to how long a slab must be cured, it ensures that the safety calculations made by designers are actually realized on the construction site. For any construction professional in the region, mastery of this standard is not just a regulatory requirement but a prerequisite for building durable, safe infrastructure. SRPS EN 13670:2012
To fully comply with SRPS EN 13670, contractors must address the following critical areas:
