CEN/TC 104/SC 8/WG 4 - Injection products

This European Standard specifies requirements and conformity criteria for the identification, performance (including durability aspects) and safety of injection products for the repair and protection of concrete structures, used for:
-   force transmitting filling of cracks, voids and interstices in concrete (category F, see 3.1);
-   ductile filling of cracks, voids and interstices in concrete (category D, see 3.1);
-   swelling fitted filling of cracks, voids and interstices in concrete (category S, see 3.1).
The performance requirements in this part of this document may not be applicable to highly specialised applications in extreme environmental conditions, e.g. cryogenic use, nor do they cover specialised circumstances such as accidental impact, e.g. due to traffic or ice, or earthquake loading, where specific performance requirements will apply.
This European Standard does not cover:
-   the treatment of cracks by widening them and sealing them with an elastomeric sealing compound;
-   external filling of cavities, that is, the placement of product outside the structure (generally within the surrounding foundation soils, or at the interface between the structure and the soil); this is covered by EN 12715 [2], under contact grouting;
-   preliminary injection works, if necessary, to temporarily stop water passage during waterproofing injection.

CMC - Modification to numbering of clauses (editorial error)

CMC - Modification in E title
DIN - Modification in D title

This European Standard describes a test method to determine the volume and weight changes of injection products used for swelling fitted filling of cracks, voids and interstices after air drying and water storage cycles.

This document describes a test method for determining the time of efflux of cementitious injection products, based on the measurement of the time taken for a standard volume of the product to flow through a standardised cone (Marsh cone). This time of efflux is a measure of the viscosity of cementitious injection products.

This test method covers determination of glass transition temperature of polymers by differential thermal analysis or differantial scanning calorimetry. This test method is applicable to polymers in granular form (below 60 mesh, avoiding grinding if possible) or to any fabricated shape from which appropriatesamples can be cut. This test method is useful for specification acceptance. This test method determines the behaviour of a polymer according to the variations of temperatures.

This document describes a test method to determine the expansion ratio and rate of injection products intended for ductile filling of wet cracks, voids and interstices.

This European Standard specifies a method for determining the injectability of a product in a capillary network and its adhesion to concrete by measurement of the splitting strength of cylindrical mortar samples resulting from a sand column injection.
NOTE   Whenever the product is of such nature that it may not be premixed and then poured into a container of the size used in this standard, injection can be carried out using a method suitable for the product provided that the pressure can be measured with similar accuracy.

This Part of this European Standard describes the method for determining the slant shear bond strength of all injection products intended to restore the integrity of cracked concrete and covered by prEN 1504-5.
The test may be performed upon cracks injected in the dry, damp, wet or with water flowing through them. It should always be carried out after the appropriate period of curing under the standard conditions of test detailed below, but may additionally be performed upon a further set of specimens after a period of artificial ageing by thermal cycling.
Whilst the testing of the repaired crack is normally by short term static load, it may also be performed as a creep test by long term static load, or as a dynamic test by the application of a cyclic load.

This Part of this European Standard describes the method for determining the compatibility with concrete of polyurethane injection products, or other elastic injection products likely to be sensitive to the effects of the alkalis in concrete. This standard describes the reference procedure.
In the case of polyurethane products, this method is only suitable for final injection products (i.e. not water-stopping foams).

This Part of this European Standard describes a test method to determine the adhesion to hydraulic concrete of injection products. The test can be applied to polymer and cementetious injection products.
The injection may be performed upon cracks in the dry, damp, wet or with water flowing through them. The tensile bond test should always be carried out after the appropriate period of curing under the standard conditions of test detailed below, but may additionally be performed upon a further set of specimens after a period of artificial ageing by thermal cycling.
The test can provide an opportunity for subjective assessment of injectability.

This standard describes a method for determining the volumetric shrinkage of products formulated with thermosetting polymer binders, mainly epoxy and polyester binders, that cure at ambient temperature or below.
This method is adapted for crack injection products formulated with polymer thermosetting binder.

This European Standard describes a test method to determine the watertightness of injected cracks in concrete, with defined crack width.

This part of this European Standard describes a test method to determine the ability of polymeric insert in concrete to withstand the effect of hardening and hardened injection products.
NOTE   This compatibility test is only applicable if the properties of a polymeric insert in concrete are deemed to be influenced by the hardening and hardened injection product which is used.

This document describes a test method to determine the filtration stability of cementitious injection products. This test can also be used:
to check the filtration stability and workable time in situ with the used mixing equipment, mixing time and temperature.
for assessment of mixing stability and required mixing time, with the mixing equipment used.

This part of this European Standard describes the reference procedure for determining the adhesive bond capacity and elongation capacity of injection products, intended for ductile filling of cracks and cavities.

This European Standard specifies the method for determining the development of tensile strength during cure of resins, such as epoxy resins.

This part of this document specifies requirements and conformity criteria for the identification, performance (including durability aspects) and safety of injection products for the repair and protection of concrete structures, used for:
- force transmitting filling of cracks, voids and interstices in concrete (category F, see 3.1);
- ductile filling of cracks, voids and interstices in concrete (category D, see 3.1);
- swelling fitted filling of cracks, voids and interstices in concrete (category S, see 3.1).
The performance requirements in this part of this document may not be applicable to highly specialised applications in extreme environmental conditions, e.g. cryogenic use, nor do they cover specialised circumstances such as accidental impact, e.g. due to traffic or ice, or earthquake loading, where specific performance requirements will apply.
This part of this document does not cover:
- the treatment of cracks by widening them and sealing them with an elastomeric sealing compound;
- external filling of cavities, that is the placement of product outside the structure (generally within the surrounding foundation soils, or at the interface between the structure and the soil). This is covered by EN 12715, under contact grouting [1];
- preliminary injection works, if necessary, to temporarily stop water passage during waterproofing injection.