Cement News tagged under: environment

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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...

Carbon-neutral fuel launched at COP24

06 December 2018, Published under Cement News

NextFuel, a new carbon-neutral fuel that is made from elephant grass has been unveiled at the United Nation's COP24 climate summit in Poland. The fuel can be burnt at industrial facilities such as cement plants to replace fossil fuels and requires no infrastructure upgrades. Manufactured by Sweden-based NextFuel, the product of the same name is made by drying elephant grass and processing it in a sealed rotary drum where oxygen is removed before the material is densified and pressed in briq...

GCCA heads to COP24 for recarbonation talks

05 December 2018, Published under Cement News

The Global Cement and Concrete Association (GCCA) joined governments, climate groups and campaigners from around the world in Poland for the United Nations' international climate change conference – COP24. A key discussion point for the GCCA at COP24 includes recarbonation – where concrete can play a role in taking CO 2 out of the atmosphere – as well as potential important related measures for IPCC implementation. The meeting represents the first GCCA attendance at international climate...

Achieving AF and NOx goals

27 November 2018, Published under Cement News

With reducing fuel costs and sustainability in mind, Brazilian producer Cimento Nacional is persistently striving to implement innovative methods to increase alternative fuels (AF) utilisation while reducing emissions. With the help of an advanced MI-CFD modelling technique the company has successfully achieved this goal at its Sete Lagoas plant, increasing its AF thermal substitution rate and reducing NO x emissions. By Ablail Paula Pinheiro, Joana Bretz de Souza, Cinar Brasil, Brazil, Tah...

Cemex creates strategic partnership with Energy Vault

08 November 2018, Published under Cement News

Cemex Research Group AG will is creating a strategic partnership with Energy Vault of Switzerland to launch the first gravity-based energy storage system. Energy vault uses a crane to lift 35t concrete blocks with excess electricity, then discharges electricity when demand requires by lowering the blocks to turn turbines. Cemex is working on material applications which include the optimisation of various concrete-based materials that will support Energy Vault's system deployments globally....

LafargeHolcim Paulding harnesses wind power

08 November 2018, Published under Cement News

LafargeHolcim's Paulding plant has become the group's first cement plant in North America to harness wind power. "Distributed wind energy is a first for LafargeHolcim in North America and something we're excited to leverage," said Jamie M Gentoso, CEO of US Cement operations. "The Paulding cement plant has been an anchor of this region for decades, producing high-quality cement and mineral components for our nation’s highways, roads, airports and national landmarks. Investing in new ways to...

Thinking outside the bag

24 October 2018, Published under Cement News

Tailoring its products around its bagging and packaging is just one of the ways in which Cementos Argos is driving innovation in the cement industry, while also focussing on efficiency and the environment. By Cementos Argos, Colombia. The introduction of the 5kg bag was in response to the growing do-it-yourself trend At Cementos Argos 20.7 per cent of its total revenue comes from innovation. One of the company’s strategic goals is to be a leader through innovation, which means g...

UAE to construct MSW plant for alternative fuel production

16 October 2018, Published under Cement News

The UAE will soon start construction and operation of a municipal solid waste treatment (MSW) plant and alternative fuel production plant in the northern emirate of Umm Al Qaiwain. The initiative by the UAE Ministry of Climate Change and Environment has signed an agreement for the project with NV Besix, TG Eco Holding and UK-based Green Revenires. The 40ha plant will come up in Al Madfaq area around 20km north of Umm Al Qaiwain and 2.5km west of the Sheikh Mohamed bin Zayed Road. It is expe...

Norway's CCS funding from EU receives cautious backing

12 October 2018, Published under Cement News

Norway is attempting to give carbon capture and storage (CCS) a new start with an updated concept focussed on developing transport and storage infrastructure to attract interests from investors around Europe. This includes the transport of CO 2 by boat instead of earlier plans to move CO 2 by pipeline, but the European Commission has been cautious in its response stating that there is currently no specific new funding set aside for the technology.
 The initiative to store CO 2 1000m und...

From waste to co-processing

26 September 2018, Published under Cement News

The route from the waste collection point to co-processing in a cement kiln is not without its challenges and too often, the thermal potential of waste as an alternative fuel in cement production is insufficiently understood. To use such wastes successfully as alternative fuels in cement pyroprocessing lines, their nature and treatment process needs to be understood. By Dr Hubert Baier, WhiteLabel-TandemProjects eU, Germany. Figure 1: incoming waste requires assessment in terms of its...