SIST EN 14650:2005

Overview

EN 14650:2005 - "Precast concrete products - General rules for factory production control of metallic fibered concrete" is a CEN European Standard that defines the general rules for quality management and factory production control (FPC) when producing metallic fibre reinforced concrete for precast elements. It sets out inspection schemes, material handling and production-control principles specific to metallic fibre concrete but does not replace product-specific conformity procedures - those are covered by European product standards or by agreement between customer and manufacturer.

Key topics and requirements

• Scope and purpose
  • Establishes FPC rules tailored to metallic fibreed concrete used in precast concrete products.
  • Clarifies that finished-product conformity follows product standards or customer–manufacturer agreements.
• Normative references
  • Relies on and supplements other standards such as EN 206-1 (concrete production), EN 13369 (common rules for precast concrete), EN 14651 (flexural tensile test for metallic fibreed concrete) and prEN 14721 (fibre content test).
• Concrete production requirements
  • Applies general requirements for storage, batching and handling of constituent materials in accordance with EN 206-1 and EN 13369.
  • Specifies that the tolerance for batching metallic fibres is restricted (tolerance not to exceed ±5% of the required fibre quantity).
• Factory production control (FPC)
  • Integrates with EN 13369 FPC procedures and adds supplementary inspection schemes for equipment, materials, production process and finished products.
  • Equipment: calibration and displacement-measuring checks on installation, after repair and as an annual check.
  • Materials: visual inspection of metallic fibres on each delivery and conformity assessment before use.
  • Production process: testing of fibre content in fresh concrete (prEN 14721) and daily visual checks for correct fibre type and even distribution (to avoid balling).
  • Finished product: inspection of fibre content and verification of flexural tensile strength (EN 14651) at frequencies defined by product standards or by agreement.

Applications and users

• Practical for precast concrete manufacturers producing metal-fibre reinforced panels, slabs, pipes and other precast elements.
• Useful to quality managers, production engineers, plant inspectors, testing laboratories, and specifiers/clients who require documented factory production control of metallic fibre concrete.
• Supports compliance with regulatory and purchaser requirements for quality control, traceability, and mechanical performance verification (e.g., residual flexural tensile strength).

Related standards

• EN 206-1: Concrete - specification and production
• EN 13369: Common rules for precast concrete products
• EN 14651: Test method - flexural tensile strength of metallic fibre concrete
• prEN 14721: Test method - measuring fibre content in fresh/hardened concrete

Keywords: EN 14650, metallic fibered concrete, factory production control, precast concrete, fibre content testing, flexural tensile strength, inspection schemes, quality control.