SIST EN 14692:2017

Overview

SIST EN 14692:2017 is a European standard published by CEN that specifies a test method for evaluating the resistance of flexible waterproofing sheets to the compaction forces exerted by asphalt layers. This standard is particularly focused on waterproofing systems used on concrete bridge decks and other concrete surfaces that are subjected to vehicular traffic. The ability of a waterproofing sheet to withstand the compaction of an overlaid asphalt layer without damage is critical to ensure durability and the prevention of water ingress, which could otherwise cause structural deterioration.

The standard was developed by the Technical Committee CEN/TC 254 and replaces the previous edition EN 14692:2005. It incorporates updated terminology and normative references to align with current industry practices and advances in waterproofing technology.

Key Topics

• Scope and Purpose
  SIST EN 14692:2017 defines a laboratory test method to determine how durable and resistant a waterproofing sheet is against compaction stresses from an asphalt layer. This is crucial for ensuring the long-term integrity of waterproofing systems on vehicular concrete surfaces.

• Test Methods
  Two alternative test methods are described:

  • Method 1: The sheet is bonded to a concrete base specimen, and asphalt is compacted directly on top. The sheet is later inspected for damage and tested for watertightness if perforations are found.
  • Method 2: The sheet is placed with a de-bonding interface between it and the concrete base as well as between it and the asphalt layer. This allows separation after testing for easier visual and watertightness evaluation.

• Test Specimen Preparation
  Specimens are prepared to standard dimensions, with controlled layering of the waterproofing sheet, base concrete, and compacted asphalt. Specific non-woven glass fibre sheets are used for the debonding interfaces in Method 2.

• Apparatus and Conditions
  The test requires compaction equipment as per EN 13375, ovens to maintain test temperature (100 ± 5 °C), and apparatus for watertightness testing as per EN 1928.

• Evaluation Criteria
  Resistance to compaction is evaluated based on:

  • Visual inspection for surface damage or perforations.
  • Watertightness testing to confirm if the waterproofing system remains impermeable after compaction.

• Test Reporting
  Comprehensive reporting covers product identification, method details, test conditions, and results including failure modes, ensuring traceability and reproducibility.

Applications

• Bridge Deck Waterproofing
  Ensures that waterproofing membranes applied on concrete bridge decks can withstand the pressure and compaction from asphalt overlays used in road construction or repair.

• Vehicular Traffic Concrete Surfaces
  Applicable to other concrete surfaces such as parking decks, tunnels, and plazas subject to traffic loads where waterproofing durability is critical.

• Quality Control in Construction
  Provides a standardized method for manufacturers, contractors, and testing laboratories to verify that waterproofing sheets meet performance requirements before deployment.

• Material Development and Approval
  Assists producers in developing materials with improved resistance to asphalt compaction and supports certification for market acceptance.

Related Standards

• EN 13375: Specifies specimen preparation methods for waterproofing of concrete decks trafficable by vehicles.
• EN 1928: Defines watertightness test methods for flexible waterproofing sheets, including method B used in EN 14692 for pressure testing.
• EN 13416: Provides sampling rules for flexible waterproofing sheets.
• EN 14695: Covers definitions and characteristics of reinforced bitumen sheets used in bridge deck waterproofing.
• prEN 17048: Addresses definitions and characteristics for plastic and rubber waterproofing sheets on trafficked concrete surfaces.

These complementary standards ensure an integrated approach to selecting, evaluating, and applying waterproofing systems on vehicular concrete surfaces, underpinning infrastructure longevity and safety.

Keywords: SIST EN 14692:2017, waterproofing sheets, concrete bridge decks, asphalt compaction resistance, flexible waterproofing, bitumen sheet testing, vehicular traffic surfaces, waterproofing durability, watertightness test, concrete waterproofing standards.