EN 1770:1998
(Main)Products and systems for the protection and repair of concrete structures - Test methods - Determination of the coefficient of thermal expansion
General Information
- Abstract
This European Standard specifies methods for the determination of the coefficient of thermal expansion of hardened structural bonding agents. The first method provides a continuous measurement of linear thermal expansion using thermomechanical analysis techniques. This method may also be used for surface protection systems. The alternative method uses prisms of 40 mm x 40 mm x 160 mm. This method may also be used for repair mortar. Both methods are suitable for bonding agents formulated with fillers of up to 4 mm.
- Status
- Published
- Publication Date
- 17-Mar-1998
- Technical Committee
- CEN/TC 104 - Concrete ( performance, production, placing and compliance criteria )
- Drafting Committee
- CEN/TC 104/SC 8/WG 3 - Bonding
- Current Stage
- 9020 - Submission to 2 Year Review Enquiry - Review Enquiry
- Start Date
- 15-Jul-2026
- Completion Date
- 15-Jul-2026
- Directive
- Harmonized Standard305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
Not Harmonized89/106/EEC - Construction products
Overview - EN 1770:1998 (CEN)
EN 1770:1998 is a European Standard from CEN that specifies test methods for determining the coefficient of thermal expansion (CTE) of hardened structural bonding agents used in concrete repair and protection. The standard defines two accepted measurement approaches: a continuous thermomechanical analysis technique and an alternative prism-based method. It applies to bonding agents (and in certain cases to repair mortars and surface protection systems) formulated with fillers up to 4 mm.
Key topics and technical requirements
- Scope: Methods for measuring linear thermal expansion of hardened bonding agents used with concrete structures.
- Method A - Thermomechanical analysis (TMA):
- Provides a continuous measurement of linear thermal expansion with thermomechanical analysis techniques.
- Can also be applied to surface protection systems where continuous data are beneficial.
- Method B - Prism method:
- Uses prismatic specimens sized 40 mm × 40 mm × 160 mm for discrete measurements.
- Also suitable for repair mortars when the prism geometry is representative.
- Material limits: Both methods are suitable for bonding agents formulated with fillers up to 4 mm in size.
- Intended output: Determination of linear coefficient of thermal expansion (CTE) for use in material characterization, specification, and quality control.
Applications and practical value
EN 1770 is intended for use by:
- Materials and testing laboratories performing CTE measurements for product certification and quality assurance.
- Manufacturers of structural bonding agents, repair mortars, and surface protection systems during product development and batch control.
- Specifying engineers and contractors who need CTE data to check compatibility between repair products and concrete substrates.
- Researchers studying thermal compatibility, shrinkage, and durability of repair materials.
Practical benefits:
- Ensures thermal compatibility between repair products and concrete to reduce risk of cracking, delamination, or premature failure.
- Supports product selection and specification for climate-exposed structures where thermal movement is significant.
- Provides repeatable test procedures for regulatory compliance, performance claims, and comparative assessments.
Related standards
- EN 1770 complements other CEN standards addressing products and systems for the protection and repair of concrete structures, and standards for mechanical and durability testing of repair materials. For project specifications, combine CTE data from EN 1770 with structural and environmental design requirements.
Keywords: EN 1770, coefficient of thermal expansion, thermal expansion, thermomechanical analysis, bonding agents, repair mortar, surface protection systems, CEN, concrete repair, test methods.
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
EN 14492-1:2006+A1:2009 - Cranes - Power driven winches and hoists - Part 1: Power driven winches - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
EN 14492-2:2006+A1:2009 - Cranes - Power driven winches and hoists - Part 2: Power driven hoists - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Get Certified
Connect with accredited certification bodies for this standard
DIBt (Deutsches Institut für Bautechnik)
German Institute for Building Technology.
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DIN Group product certification.
Aboma Certification B.V.
Specialized in construction, metal, and transport sectors.
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Frequently Asked Questions
EN 1770:1998 is a standard published by the European Committee for Standardization (CEN). Its full title is "Products and systems for the protection and repair of concrete structures - Test methods - Determination of the coefficient of thermal expansion". This standard covers: This European Standard specifies methods for the determination of the coefficient of thermal expansion of hardened structural bonding agents. The first method provides a continuous measurement of linear thermal expansion using thermomechanical analysis techniques. This method may also be used for surface protection systems. The alternative method uses prisms of 40 mm x 40 mm x 160 mm. This method may also be used for repair mortar. Both methods are suitable for bonding agents formulated with fillers of up to 4 mm.
This European Standard specifies methods for the determination of the coefficient of thermal expansion of hardened structural bonding agents. The first method provides a continuous measurement of linear thermal expansion using thermomechanical analysis techniques. This method may also be used for surface protection systems. The alternative method uses prisms of 40 mm x 40 mm x 160 mm. This method may also be used for repair mortar. Both methods are suitable for bonding agents formulated with fillers of up to 4 mm.
EN 1770:1998 is classified under the following ICS (International Classification for Standards) categories: 91.080.40 - Concrete structures. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1770:1998 has the following relationships with other standards: It is inter standard links to EN 12190:1998, EN 13135:2013+A1:2018, EN 13852-1:2013, EN 1504-3:2005, EN 1504-4:2004, EN 14492-1:2006+A1:2009, EN 13135:2013, EN 13852-2:2004, EN 14492-2:2006+A1:2009, EN 13852-1:2004, EN 1504-2:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1770:1998 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/128. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 1770:1998 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Produkte und Systeme für den Schutz und die Instandsetzung von Betontragwerken - Prüfverfahren - Bestimmung des WärmeausdehnungskoeffizientenProduits et systemes pour la protection et la réparation des structures en béton - Méthodes d'essais - Détermination du coefficient de dilatation thermiqueProducts and systems for the protection and repair of concrete structures - Test methods - Determination of the coefficient of therm
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