Cement News tagged under: quality control

RSS feed

Achieving the target

23 November 2016, Published under Cement News

While achieving targets is commonplace in the cement industry, when it comes to quality, there are a few key parameters that determine the final product in the cement production process. Figure 1: some of the large amounts of data that are routinely collected in a modern cement plant Maintaining quality in the cement industry involves meeting a wide range of targets for raw material composition, raw meal fineness, kiln feed composition, clinker composition and mineralogy, cement...

A chimney of corruption

17 November 2014, Published under Cement News

Dr Clark recounts how statistical analysis of the variation in product quality control testing can be used to detect the corrupt reporting of testing results as one particular case of a cement company comes to mind. This method can help avoid the spectre of expensive lawsuits and damage to the cement maker’s reputation. Figure 1: clinker free lime distribution – typical skewed results On a quiet, misty autumn morning the moderator was contemplating the subject of his next Techni...

Nigeria sets up technical committee to review quality

12 February 2014, Published under Cement News

The government of Nigeria has set up a technical committee to review the quality of cement produced within the country and is said to be evaluating the impact of eliminating 32.5 grade cement. The Standard Organisation of Nigeria (SON) had earlier relaxed the minimum standard for cement used in the country from 42.5 grade to 32.5 grade. However, Joseph Odumodu, director general of the organisation, said that a committee was already reviewing the current standard and weighing the implicati...

Consistent, reliable results

26 November 2013, Published under Cement News

Quality control has been automated to such an extent that we run the severe risk of turning into a generation of button-pushing operators instead of thinking analytical scientists. It is imperative that analytical scientists responsible for the quality control in a plant remain vigilant and regularly evaluate their data because automated sampling systems, plant process control systems, analytical equipment and data management systems need so little human input once set up correctly. By Maggi...

ACC: ready for the upturn

09 April 2013, Published under Cement News

As the housing market continues to exercise drag on Florida’s economy, the state’s cement market continues to lag the rest of the US. However, with pent-up demand continuing to increase, Florida is poised to have excellent years ahead. For American Cement Company LLC (ACC), this prospect calls for additional investment and the company briefly outlines its cement works. By American Cement Co, USA. As the market recovers, ACC intends to make the necessary investments to allow for a c...

New laboratory automation system for Wotan Zement, Germany

29 November 2012, Published under Cement News

For the quality monitoring and control of their cement products, Portlandzementwerk Wotan decided to install a new laboratory automation system from ThyssenKrupp Polysius.   As from spring 2013, the POLAB ACT will replace the existing POLAB system which has been in service at the company's Üxheim plant since 1993.   In addition, a pneumatic tube dispatch station for cement is being installed at the plant.

Algeria's white present

07 November 2012, Published under Cement News

Lafarge operates a 3.5Mta cement works in Oggaz, Algeria, from where it produces not only grey cement for the western Algerian market but also white cement for domestic and overseas customers. By Ali Boumgharef, Ciment Blanc Algérien Spa (Lafarge), Algeria. Lafarge’s Oggaz works in Algeria delivers sizeable quantities of white cement to domestic and overseas customers White clinker production at Lafarge’s Oggaz plant began in July 2007 while the cement grinding unit started one ...