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Displaying items by tag: Aggregates

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Hanson part of new continuous concrete pour record in UK

01 July 2019

UK: Hanson has been part of a new continuous concrete pour record in the UK as part of its work at the EDF Energy’s Hinkley Point C (HPC) new nuclear power station in Somerset. It supplied raw materials for the concrete to main civil engineering contractor BYLOR, which operates the on-site concrete production plant. The 9000m3, five-day, pour was to construct the last of five reinforced concrete segments that make up the cross-shaped foundations on which all of the first nuclear reactor’s buildings will sit. The record-breaking pour beats the previous UK record set by the Shard skyscraper in London.

The completion of the foundation platform, which is up to 4m thick, represents a significant milestone for the project, described by EDF Energy as J-zero. It marks the transition from below ground activity to the construction of permanent reactor buildings above ground.

Hanson says that mix design for HPC took three years of development and testing to ensure that the concrete was of the required quality mandated by the Office for Nuclear Regulation. The subsidiary of Germany’s HeidelbergCement has 65 employees directly involved in the HPC project team. To date Hanson has supplied 51,000m3 of concrete, 2.5Mt of aggregates, 210,000t of marine sand, 65,000t of cement; 105,000t of ground granulated blast furnace slag (GGBS) and 125,000t of asphalt.

Published in Global Cement News
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Cemex supplies concrete for Grand Paris Express project

06 June 2019

France: Cemex has supplied over 0.3Mm3 of ready-mixed concrete and more than 0.55Mt of aggregates for the Grand Paris Express project over the past three years. It has used mobile on-site concrete plants and a local network of 21 plants in Île-de-France to support the large-scale railway infrastructure scheme.

"The Grand Paris worksites present a daily challenge to deliver ready-mix concrete on time, supply aggregates to our production sites, and move earthworks from the stations and tunnels out of Paris,” said Benjamin Lecendrier, Major Projects Director at Cemex France.

The Grand Paris Express worksites on metro lines 11, 14 and several sections of line 15 South have involved most of Cemex’s staff in the Île-de-France region, with four full-time operatives working in a dedicated unit. Given the scale of operations, logistical organisation is a challenge, with the twin demands of delivering construction materials and removing 40Mt of earthwork by 2030.

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Cemex agrees final agreement to sell aggregate and ready-mixed concrete assets in Germany

14 May 2019

Germany: Cemex has signed the final agreement to sell its aggregates and ready-mix assets in the North and North-West regions of Germany to GP Günter Papenburg AG for around Euro87m. The divestment is expected to close during the second quarter of 2019.

The assets in Germany being divested consist of four aggregates quarries and four ready-mix facilities in North Germany, and nine aggregates quarries and 14 ready-mix facilities in North-West Germany. The proceeds expected to be obtained from this divestment will be used mainly for debt reduction and for general corporate purposes.

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Martin Marietta benefits from aggregate sales in first quarter

01 May 2019

US: Martin Marietta has benefited from aggregate sales volume growth in the first quarter of 2019. Its revenue grew by 17% year-on-year to US$939m from US$802m. Its earnings before interest, taxation, depreciation and amortisation (EBITDA) rose by 28% to US$159m from US$124m. However, the gross profit on its cement business was down and both sales and profit was down for ready-mixed concrete (RMX). Despite this the company said that its cement shipments and pricing increased 7.3% due to demand in Texas, a new Houston-area sales yard and an enhanced product line.

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Cemex to sell ready-mix concrete and aggregate assets in Germany

20 March 2019

Germany: Cemex has reached a binding agreement to sell its aggregates and ready-mix concrete assets in the north and northwest regions of Germany to GP Günter Papenburg for around Euro87m. It expects to sign the final agreement in April 2019 and close the divestment during the second quarter of 2019.

The assets in Germany being divested consist of four aggregates quarries and four ready-mix concrete (RMX) plants in north Germany, and nine aggregates quarries and fourteen RMX plants in northwest Germany.

The proceeds expected to be obtained from this divestment will be used mainly for debt reduction and for general corporate purposes. The transaction is subject to standard regulatory approval.

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Votorantim Cimentos buys United Materials in the US

20 March 2019

US: Brazil’s Votorantim Cimentos has acquied United Materials, a producer of aggregates, concrete and building materials, for an undisclosed amount. The purchase was conducted by its subsidiary Votorantim Cimentos North America. United Materials operates four ready-mix concrete plants, one aggregate quarry and two building materials units in the western part of New York state. It has around 140 employees.

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LafargeHolcim wins contracts worth Euro110m for Grand Paris Express project

26 February 2019

France: LafargeHolcim has been awarded contracts worth Euro110m as part of the Euro38.5bn Grand Paris Express (GPE) project. The GPE will improve transport infrastructure in Paris in preparation for the 2024 Olympic Games. It will require around 200km of new railway line and 68 new stations.

LafargeHolcim will deliver 600,000t of aggregates and 260,000t of cement to produce 650,000m3 of ready-mix concrete. To support the project’s schedule, the company has added mobile ready-mix concrete plants to its existing Parisian ready-mix concrete network, enabling an average production of 300m3/hr for the GPE. It will remove and treat at least 3Mt of earth from the construction site, then use the excavated material to re-landscape its nearby quarries. For the transportation of both aggregates coming from nearby quarries situated in the Seine valley and the excavated earth, LafargeHolcim will use barges on the River Seine. The company aims to work on the GPE over the next 15 years.

“We are proud to be a key partner on this historic project. With this partnership we are demonstrating our leadership in the building materials industry, making a lasting contribution to improving the transport experience of the people living and working in the Paris area. The project once more shows our capacity and reliability in delivering a large amount of high-quality concrete and our ability to provide efficient logistics and supply solutions,” said chief executive officer (CEO) Jan Jenisch.

Published in Global Cement News
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Martin Marietta cement sales rise in 2018

14 February 2019

US: Martin Marietta's sales rose by 7% year-on-year to US$4.24bn in 2018 from US$3.97bn in 2017. Its adjusted earnings before interest, taxation, depreciation and amortisation (EBITDA) remained stable at US$1.1bn. Revenue from its cement business grew by 4.5% to US$388m from US$371m.Cement shipments increased slightly to 3.5Mt. The building materials company said that its cement shipments had been negatively affected by bad weather in the fourth quarter. The bulk of the company's revenue comes from it aggregate business followed by ready-mix concrete.

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Aggregate Industries, Innovatium and the University of Birmingham work on liquid air energy storage system

05 February 2019

UK: A consortium comprising Aggregate Industries, Innovatium and the University of Birmingham has gained funding from the Department for Business, Energy and Industrial Strategy (BEIS) to test a liquid air energy storage (LAES) energy efficiency technology under the government’s Industrial Energy Efficiency Accelerator (IEEA) programme. The IEEA programme, administered by the Carbon Trust on behalf of BEIS, will provide nearly Euro0.4m towards delivering a new compressed air system utilising LAES technology from initial laboratory testing to full operation at Aggregate Industries’ Bardon Hill quarry in Leicestershire.

PRISMA (Peak Reduction by Integrated Storage and Management of Air) by Innovatium is a LAES technology that stores energy in liquid air form to provide compressed air, allowing inefficient partially loaded, variable-demand compressors to be turned off, thus improving the total system efficiency by up to 57%. The PRISMA system will bring together a latent energy cold storage tank, filled with a phase change material (PCM) to store thermal energy, and a number of other off-the-shelf components to form a system that will work with Aggregate Industries’ existing compressed air network. The research group says that the integration of the equipment and components in an industrial setting, for the provision of compressed air, has never been attempted before.

“The project will help to address the ‘energy trilemma’ of managing energy efficiency, energy cost and energy security by: significantly improving the energy efficiency of our compressed air system; managing electricity costs by running the compressors out-of-hours, when electricity is cheaper; and helping to smooth and reduce the peak electrical demand on site. We are therefore very excited to be the first industrial partner to install the PRISMA system at our Bardon Hill quarry in Leicestershire,” said Richard Eaton, Energy Manager at Aggregate Industries.

The 24-month project will involve the development of the PCM at the University of Birmingham’s School of Chemical Engineering as well as the design, manufacture and assembly of multiple system components by Innovatium before installation of the system at Bardon Hill. The PRISMA Project has currently only been deployed in a simulated environment. Following successful delivery of the project, this scalable technology has multi-sectoral applications for compressed air systems both in the UK and globally. In the UK, the compressed air market is estimated at 1.3GW of installed electrical capacity across around 4500 sites and over 55,000 individual compressor units.

Published in Global Cement News
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Terex Washing Systems invests in North American sales and operations

31 January 2019

US/Canada: Terex says that its Terex Washing Systems (TWS) brand is investing in its North American sales and operational teams. Following the spend it will have 20 regional partners via 50 service depots, 60 mobile trucks and 100 technicians in the region.

“Our new enhanced levels of sales and service and support will build upon momentum gained in recent years as we continue to focus on serving customers, with world-class washing equipment solutions that add commercial value to their operations,” said TWS’ director Oliver Donnelly.

TWS manufactures products for the mineral washing sector for aggregate, recycling, mining and industrial sand industries.

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