Cement News tagged under: VDZ

RSS feed

Energy saving with separate fine grinding

13 October 2020, Published under Cement News

Separate grinding and subsequent blending is a commonly used practice in the cement industry, enabling the lowering of the specific electric energy demand by using highly efficient comminution techniques. While ball mills are not the most energy-efficient mills, VDZ’s research has shown that in some cases ultrafine grinding by means of a stirred media mill combines the advantages of a ball mill with low overall specific energy demand. By J Knappert, S Seemann and PM Fleiger, VDZ, Germany. ...

Germany: leading the recovery

05 October 2020, Published under Cement News

The German cement sector has fared better than most during the pandemic. Cement demand is forecast to remain stable this year, with a more cautious outlook for 2021. Meanwhile, producers are embracing the latest technology for a leaner, greener manufacturing base. HeidelbergCement’s plant at Burglengenfeld, Germany, was modernised in 2017-18 with a new kiln, baghouse and SNCR system Germany’s economic growth slowed to 0.6 per cent in 2019 from 1.5 per cent the previous year,...

Germany's VDZ extends cautious outlook

02 September 2020, Published under Cement News

Speaking about the development of the German cement market, Christian Knell, president of Germany's cement association VDZ, says "It has rarely been so difficult to make a forecast as it is this year.” Since March 2020 the coronavirus pandemic has created a great deal of uncertainty amongst most people and companies in this country. So far the cement manufacturers have had no grounds for complaint, not least because favourable weather conditions helped the cement market to get off to a goo...

VDZ to move to new premises

10 August 2020, Published under Cement News

For more than 60 years, Germany's cement association Verein Deutscher Zementwerke eV (VDZ)'s research institute in Düsseldorf has been the home and focal point not only for many generations of its employees but also for the representatives of the cement industry. Now, in the first week of September this year, VDZ will move into new premises, a step which will provide a new, long-time perspective. VDZ's new home is located close to its previous building, with excellent 15-minute connections ...

Experiences with alternative fuels

12 June 2020, Published under Cement News

This week Cemtech hosted a live webinar on best practice for alternative fuels (AF) with renowned speakers from VDZ, FLSmidth and W&P Zement explaining how the cement industry has been developing its AF substitution rates in Europe. Starting the webinar was Dr Volker Hoenig, managing director of VDZ, which represents the German cement industry, discussed the evolution of AF in Germany. He stressed the most important aspects of using AF were the four core elements of: transparency, quality c...

GCCA welcomes two new members and three affiliates

29 October 2019, Published under Cement News

The Global Cement and Concrete Association (GCCA) has added two new member companies and three new affiliates. Membership now totals 38 member companies and 18 affiliates. The new member companies are Cementos Progreso SA of Guatemala and Vassiliko Cement Works Public Co Ltd of Cyprus. In addition, the association confirmed three new affiliates who will partner the GCCA to achieve shared goals and specific objectives. These companies comprise Cement Concrete & Aggregates Australia (CCAA )o...

Germany's cement consumption rises to 29Mt in 2018

11 October 2019, Published under Cement News

German cement consumption rose by 0.4 per cent in 2018 to 29Mt, according to a statement by Germany's cement association, the VDZ. The VDZ sees the industry continuing in a stable environment for 2019-20. According to the official data now available, domestic demand for cement was almost completely covered by German-based manufacturers in 2018. Only 1.5Mt or 5.3 per cent of the cement required had to be imported in 2018. In contrast, cement exports rose by 1.5 per cent, according to the Fed...

Efficient grinding meets reduced CO2 emissions

12 August 2019, Published under Cement News

While cement plants have made sound progress in terms of reducing CO 2 emissions from fuel consumption, progress relating to such emissions from electricity consumption has been slower. VDZ looks at a key power consumer in the modern cement plant: the grinding section. By Jonas Knappert, Kevin Treiber and Stefan Seemann, VDZ, Germany. Figure 1: electrical energy consumption of the cement manufacturing processes 1 Cement production is energy intensive in terms of fuel and elect...

Durability of composite cements with calcined clay

13 December 2018, Published under Cement News

Composite cements are clinker efficient and play an important role in reducing CO 2 emissions from cement manufacturing. To assure their correct application in concrete, their performance in concrete has to be demonstrated, especially with regard to durability under different concrete exposure conditions. As part of a long-term research programme, such cements made of different calcined clays were used in conventional concrete mixtures and tested for their resistance to carbonation, chlorid...

8th International VDZ Congress inaugurated in Germany

27 September 2018, Published under Cement News

The 8th International VDZ Congress 2018 held its inauguration ceremony on Wednesday in Düsseldorf, Germany. The three-day event will see representatives from the cement industry, its suppliers and the fields of science and research discuss current technical challenges and the conditions facing the future of cement production. "Climate protection, digitalisation and the cement plant of the future: these are the key issues for the future of our industry, issues we are greatly committed to tac...