Cement News tagged under: quarry

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The restoration revolution

20 September 2017, Published under Cement News

While current environmental legislation expects the extractive industry to restore its abandoned mining areas back to their former use, it often falls short of detailed steps to achieve this goal. In the last few years, Cemex has been developing a geomorphological approach to ecological restoration at three clay quarries in Spain. By José María Gómez Díaz, Cemex, Spain. Aurora, one of three clay quarries owned by Cemex in Campredó, Tarragona, Spain (October 2015) The days of ext...

Places of discovery

06 March 2017, Published under Cement News

Particular finds of scientific importance can transform the perception of quarries as sites of destruction to places of discovery. From fossils and archeological finds to structural features, such locations can help to provide a positive view of quarrying operations. By Fabio Coletta and Dr Michael Clark, Whitehopleman, UK. Quarries can be viewed as sites of important discoveries rather than destruction Often cement raw material quarries present unique geological features connec...

Elevated savings

27 June 2016, Published under Cement News

Drones have quickly become a popular tool for quarry management. From planning to operations, they are saving companies time and money by assessing and measuring raw material stockpiles quickly and efficiently. By Rosalie Bartlett, Kespry, USA. Drones are increasing quarry efficiency in several ways. One example is through stockpile measurement. In the past, many aggregate companies would measure stockpiles using a combination of employees on the ground and third-party surveyors. Sur...

Holcim gets approval for extension Eclépens quarry

15 June 2016, Published under Cement News

Holcim has received approval to extend the quarry at the Eclépens cement works in Switzerland. The company exploits the La Birette quarry in the Mormont hills, Vaud canton. The extension will allow the cement maker to increase its production capacity and enable production to continue until 2029.

Lafarge halts EUR20m investment in Sagunto plant, Spain

17 February 2016, Published under Cement News

The management of Lafarge yesterday made public its decision to halt the expansion of its quarry and its plant at Sagunto, Spain, due to “the uncertainty created by the new local government and the lack of viable alternatives,” according to El Mercantil Valenciano. The cement producer had intended to spend around EUR20m in upgrading its plant. In 2013 Lafarge and the town council of Sagunto agreed for the company to accept the limits to the use of its quarrying concession and move to the o...

Unlocking Dominica’s pozzolans

09 December 2015, Published under Cement News

Quarry operator Carib Sand & Stone is preparing an extensive expansion project at its Pointe-Michel mine on the Caribbean island of Dominica. The expansion is expected to help meet the growing demand for supplementary cementitious materials (SCM) in the Americas market. By Jean-Yves Bonnaire, Carib Sand & Stone Ltd, Dominica. The relatively abundant and accessible natural pozzolan resources offer further opportunities Carib Sand & Stone Ltd is an independent quarry operator, ope...

Algeria: Beni Saf acquires three quarries

23 November 2015, Published under Cement News

Société des Cements de Beni Saf has acquired three quarries to supply its second production line. The Dhayet Smaâ quarry has an estimated limestone reserve of 78.66Mt. In addition, the clay deposits of Koudiet El Tine (24.3Mt) and El Ancer will also supply the 2Mta cement line. The cement producer has acquired the quarries, which cover an area of 370ha, for a record DZD1.005bn (US$9.3m). Exploration work will be carried by CETIM, the Centre for Study and Technology Service of the Constr...

Quarry efficiency

30 September 2015, Published under Cement News

The quarry is often an undervalued and overlooked aspect of cement manufacture. However, the quarry is where it all begins as the quality of the cement starts here. With the right long-term plan in place, a number of steps can be taken to enhance quarrying efficiency, optimise operations and reduce costs. By John Kline & Charles Kline, Kline Consulting LLC, USA. Figure 1: checklists for quarry operators – years of reserves should always be known Before starting any quarry optimi...

Supporting the load

30 March 2015, Published under Cement News

Operating in Georgia since 2007, HeidelbergCement has seen its cement and concrete operations expand and work volumes grow. To help keep pace with its 24/7 production schedule at the company’s seven concrete production sites and two cement plants, a fleet of SDLG wheel loaders has been employed. Uptime of the vehicles is further optimised through a rigorous maintenance schedule undertaken by a local company, providing support close to home. By Shandong Lingong Machinery Co Ltd, China. ...

Deuna Zement signs agreement on Duen quarry

24 February 2015, Published under Cement News

Contrary to the original plans, Germany-based producer Deuna Zement will now not quarry limestone from the 100m-wide strip of woods in Duen. This compromise and further concessions were laid down in a comprehensive seven-point agreement between Deuna Zement GmbH and Duenwald town authorities. In addition, the open-pit operator has agreed to establish a modern, gentler blasting methods to relieve the pressure for the inhabitants of nearby Zaunröden. In addition, blasting will be more closel...