Overview
ISO 11600:2002/Amd 1:2011 is an important amendment to the international standard governing jointing products used in building construction. Specifically, it focuses on the classification and performance requirements for sealants. Sealants play a critical role in ensuring the durability, weatherproofing, and structural integrity of construction joints. This amendment, published by ISO in 2011, updates the criteria for sealant classification to reflect improved materials and testing methods.
The standard is maintained by ISO Technical Committee ISO/TC 59, Subcommittee SC 8, which specializes in sealant materials and jointing techniques for buildings and civil engineering works. The amendment revises key test parameters and classification tables, ensuring sealants meet updated elastic recovery, deformation, adhesion, and volume loss requirements.
Key Topics
- Sealant Classification: The document updates the classification of construction sealants by defining seven specific classes based on performance properties such as elasticity, elongation, and modulus at different temperatures.
- Elastic Recovery Requirements: Sealants must demonstrate specific minimum percentages of elastic recovery to maintain flexibility and accommodate joint movement after strain.
- Deformation Properties: Includes strict limits on secant modulus at +23 °C and –20 °C to define sealant stiffness and flexibility under varying temperatures.
- Adhesion and Cohesion Testing: Sealants undergo adhesion/cohesion tests at constant and variable temperatures, including after immersion in water, to ensure long-term joint durability.
- Volume Loss Limits: The amendment specifies maximum allowable volume loss percentages for different sealant types to prevent shrinkage and joint failure over time.
- Sag Resistance: Sealants’ resistance to sagging when applied in vertical joints is measured to guarantee proper application performance.
Applications
ISO 11600:2002/Amd 1:2011 serves as a benchmark for manufacturers, contractors, and quality control specialists working with jointing sealants in various building projects:
- Building Envelope Integrity: Ensures sealants reliably seal expansion joints, curtain walls, and façade elements to prevent air and water penetration.
- Structural Joints: Provides guidelines for sealants in concrete, precast, and metal joints subject to large movements and temperature variations.
- Renovation and Maintenance: Supports proper selection and evaluation of sealants used in repair work, improving longevity and performance.
- Compliance and Procurement: Architects and engineers specify ISO 11600 sealant classes in tenders to guarantee products meet recognized international standards.
- Testing Laboratories: Provides testing protocols and performance benchmarks for certifying sealant products according to ISO requirements.
Related Standards
- ISO 8330 Series: Addresses terminology and definitions related to sealants and jointing products.
- ISO 9046 and ISO 9047: Cover adhesion/cohesion test methods under variable and constant temperature conditions.
- ISO 10590 and ISO 10591: Specify sealant testing after immersion in water, verifying adhesive durability.
- ISO 7390: Describes sag resistance tests essential for evaluating vertical application properties of sealants.
By adhering to ISO 11600:2002/Amd 1:2011, stakeholders in building construction ensure that sealants perform reliably under the stresses of joint movement, environmental exposure, and aging-contributing to safer, more durable, and energy-efficient buildings worldwide. This amendment enhances the standard’s relevance by integrating modern performance criteria and testing procedures for today’s advanced sealant technologies.
Open preview (PDF)Building construction — Jointing products — Classification and requirements for sealants — Amendment 1