Structurally effective concrete replacement systems

For his projects, the planning engineer determines the principles and procedures required for the repair of each building component. In this regard, he evaluates whether it is a structural repair. If the weakened cross-section still is sufficiently load-bearing, only cosmetic cross-sectional additions and a permanent protection of the reinforcement against corrosion is required. Otherwise, the full cross-section of the load-bearing component has to be repaired by means of a class R2 to R4 concrete replacement system that is adapted to the substrate and in accordance with EN 1504-3.

Generally, concrete replacement systems of class R4 are used for high-quality concrete grades. They must be capable of absorbing and/or transferring occurring strains.

Concrete replacement system of class R4

The R4 product range in accordance with EN 1504-3 of Stocrete comprises, among others, the Stocrete TS 203 wet spray mortar, the Stocrete TS 100 dry spray mortar and the Stocrete TG 203 repair mortar for hand application. In addition to the European requirements, these polymer-modified mortars are certified as M3 mortars in compliance with German regulations and are subject to voluntary external quality control. They are suitable for vertical as well as overhead application and can be applied partially as well as on large-scale. The product line is completed by the mortars Stocrete TG 114 and Stocrete TG 118 for structural repair of floorspaces.

Non-flammable and suitable for so-called LAU facilities

The repair mortars are non-flammable and thus, like the surrounding concrete, make a significant contribution to the fire protection concept of a building. The concrete replacement systems Stocrete TS 100, Stocrete TG 203 and Stocrete TS 203 are suited for restoring and subsequently increasing the fire resistance of concrete components in accordance with the classification REI 90 pursuant to EN 13501-2. In addition, they can be used as embedded anode mortar for the repair principle of cathodic protection against corrosion. Their outstanding mechanical properties allow their use as concrete replacement, to level out unevenness of the substrate and to increase the concrete cover in case of subsequent structural reinforcement using CFRP laminates. Moreover, Stocrete TG 203 and Stocrete TS 203 are granted with a national technical approval for concrete repair in so-called LAU facilities and gas stations.


Stocretec GmbH

Gutenbergstrasse 6

65830 Kriftel/Germany

+49 6192 401-104">

Related articles:

Issue 2013-08 Stocretec

M3-mortar for concrete repair

The continuously increasing loading of structures resulting from the effects of weathering and pollutants is adding importance to concrete repair. The choice of a suitable concrete substitute system...

Issue 2013-04 StoCretec GmbH

Berliner Ring Autobahn repaired over 17,000 m²

The A 100 highway runs across Berlin and connects the capital’s administrative districts Neukölln in the south, via Wilmersdorf, to Charlottenburg in the north. The structurally deficient northern...

Issue 2013-02 StoCretec GmbH

For inclined matters: M3 Mortar TG 114

When it comes to structural repairs of concrete structures subjected to severe stresses (as trafficable ramps), only stable PCC I mortars of stress class M3 come into question. StoCrete TG 114 in the...

Issue 2019-07 STOCRETEC

Saving time in repairing concrete

Ensuring the function of concrete structures and retaining their aesthetics – quickly, economically and reliably. Because the universal mortar StoCrete SM requires no bonding course, it can save up...

Issue 2018-11 STOCRETEC

Ribbed floor slab repair with mortar grade R4

The ravages of time have taken their toll on the building substance of the high school in Balingen, Germany. In addition, the building no longer met the stringent safety requirements of today – a...