BS EN 12618-2-2004 (2005) PDF

Full title and description

BS EN 12618-2:2004 — Products and systems for the protection and repair of concrete structures — Test methods — Part 2: Determination of the adhesion of injection products, with or without thermal cycling — Adhesion by tensile bond strength. This document specifies a tensile-bond test method to measure the adhesion of polymeric and cementitious injection materials to hydraulic concrete and may include artificial ageing by thermal cycling.

Abstract

This European Standard defines a laboratory procedure to prepare cracked concrete specimens, inject test materials (polymer or cementitious), cure under defined conditions and determine tensile bond (pull-off) strength. The method covers injections into dry, damp, wet or actively leaking cracks and allows optional thermal cycling to assess ageing effects; it also provides for qualitative assessment of injectability.

General information

• Status: Confirmed / valid European standard (national adoptions issued).
• Publication date: EN published 1 November 2004; BSI adoption published 9 July 2005 (national publication dates may vary by country).
• Publisher: CEN (European Committee for Standardization) — adopted and published by national bodies (e.g., BSI for the UK, SIS, DIN, EVS).
• ICS / categories: 91.080.40 — Concrete structures.
• Edition / version: EN 12618-2:2004 (first EN edition of this part).
• Number of pages: Typically 13–16 pages depending on national publication (BSI listing: 16 pages; some national texts show 13–14 pages).

Scope

This part of EN 12618 applies to test determinations of the tensile bond (pull-off) strength between injection materials and hydraulic concrete. It covers preparation of composite test specimens, injection into cracks under a range of moisture conditions (dry, damp, wet or flowing water), defined curing regimes, test apparatus and measurement procedure. The test is intended for both polymer- and cement-based injection products and may be performed before and after artificial ageing by thermal cycling to evaluate durability. The procedure is a laboratory reference method for comparative performance evaluation rather than a statement of in-service acceptance criteria.

Key topics and requirements

• Definition of specimen geometry and preparation for tensile bond testing.
• Procedures for injecting polymeric and cementitious materials into simulated cracks under controlled moisture states.
• Specified curing times and test ambient conditions (standard conditioning before measurement).
• Tensile (pull-off) measurement method, equipment and calibration requirements.
• Optional artificial ageing by thermal cycling and comparison of results before/after ageing.
• Reporting requirements: test conditions, specimen description, observed failures, numerical results and notes on injectability.
• Notes clarifying that the method gives comparative performance data; it does not by itself set pass/fail limits (those are applied by clients/specifications or harmonised product requirements such as EN 1504-5).

Typical use and users

Used by materials manufacturers (injection resins and grouts), independent testing and certification laboratories, contractors and engineers specifying or qualifying repair materials, and conformity assessment bodies. Typical applications include product development, quality control, pre-qualification of injection systems for crack repair, and comparative performance testing for specification compliance.

Related standards

Part of the EN 12618 test-method series for injection products; closely related documents include EN 12618-1 (adhesion and elongation capacity of injection products with limited ductility) and EN 12618-3 (slant shear method). EN 12618 test methods are referenced by product/conformity standards such as EN 1504-5 (concrete injection — requirements and conformity). National adoptions (BS, DIN, ÖNORM, EVS, etc.) provide identical or endorsed texts.

Keywords

adhesion test, tensile bond strength, injection products, concrete repair, polymer injection, cementitious injection, thermal cycling, injectability, EN 12618, test method.

FAQ

Q: What is this standard?

A: EN 12618-2:2004 is a European laboratory test method that specifies how to determine the tensile-bond (pull-off) adhesion of injection materials to hydraulic concrete, including an optional thermal-cycling ageing procedure.

Q: What does it cover?

A: It covers specimen preparation, injection into cracks under various moisture conditions (dry, damp, wet or flowing water), curing, the tensile bond test procedure, optional thermal cycling, measurement, and reporting. It is intended for polymeric and cementitious injection products.

Q: Who typically uses it?

A: Product manufacturers, independent test laboratories, repair contractors, design engineers and certification bodies use the method for product development, quality control and comparative evaluation when specifying crack-injection materials.

Q: Is it current or superseded?

A: EN 12618-2:2004 is the published EN edition for Part 2 (national adoptions followed in 2004–2005). Users should check their national standards body for any later confirmations, amendments or national supplements; many member bodies implemented the EN text in 2004–2005 and later confirmations/adoptions are recorded in national catalogs.

Q: Is it part of a series?

A: Yes — it is one part of the EN 12618 series of test methods for injection products (see EN 12618-1, EN 12618-3, etc.), which together provide complementary procedures for assessing adhesion, elongation, shear and other performance aspects of crack-injection materials.

Q: What are the key keywords?

A: Adhesion, tensile bond strength, injection, concrete repair, polymer, cementitious, thermal cycling, injectability, EN 12618-2.