In early May 2025, the Ministry of Transport of Baden-Württemberg introduced the new ZTV-ING 2025/02. Based on condition data from existing structures, a working group consisting of cement manufacturers and the associations IZB and VDZ was able to objectively demonstrate that civil engineering structures in the state are both climate-friendly and durable with Portland composite cements.

Prior to the current regulations, the exchange with the Ministry of Transport of Baden-Württemberg (Department of Road Traffic, Road Infrastructure) was very constructive and practical. The now-issued decree reinstates the previously known, but temporarily expired, regulation regarding the use of CEM II-M cements in Baden-Württemberg. The associations are working with the Federal Highway Research Institute (BASt) to ensure that, in the interest of sustainability, the requirement for approval of clinker-efficient CEM II-M cements is removed nationwide when the ZTV-ING is updated.

With the introduction decree (Annex 4, link below), the following regulations now apply to cements for civil engineering structures in Baden-Württemberg:

• CEM II/A-M cements (with the main components S-D; S-T; S-LL; D-T; D-LL; T-LL; S-V; V-T; V-LL) can be used without restrictions in civil engineering structures nationwide since the update. This applies to the products of the South Works Group:
  • SCHWENK CEM II/A-M (V-LL) 42,5 N – Allmendingen plant
  • SCHWENK CEM II/A-M (V-LL) 42,5 N – Mergelstetten plant

• For Baden-Württemberg, the requirement for approval according to 3-1, section 4.3 for CEM II/B-M cements (with application approval) has been lifted. Their use is therefore generally permitted without prior approval from the client and applies to the following products of the South Works Group:
  • SCHWENK CEM II/B-M (V-LL) 32,5 R (az) – Allmendingen plant
  • SCHWENK CEM II/B-M (V-LL) 32,5 R-LH (az) – Allmendingen plant
  • SCHWENK CEM II/B-M (V-LL) 42,5 N (az) – Allmendingen plant
• The use of CEM II/C-M cements is possible with the client’s approval, but is excluded for capping concrete. The regulations of the general building supervisory approval regarding exposure classes XF2 to XF4 must be observed.

Source: Ministry of Transport Baden-Württemberg: Update of the Additional Technical Contract Conditions and Guidelines for Civil Engineering Structures (ZTV-ING).
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