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Displaying items by tag: Limestone

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Heidelberg Cement’s ReConcrete-360° concrete recycling process wins German Climate and Environment Innovation Prize

17 May 2022

Germany: The Ministry for Economy and Climate Protection has presented HeidelbergCement with its German Climate and Environment Innovation Prize (IKU) for its ReConcrete-360° concrete recycling process. The process retrieves hardened cement paste from waste demolition concrete for use in place of limestone in clinker and cement production. The recycled material can also bind CO2 to act as a carbon sink.

Global research and development Wolfgang Dienemann said “With ReConcrete-360°, we have succeeded in developing a limestone substitute from demolished concrete that also allows us to use the carbon-containing exhaust gases from cement production. A small revolution with a big impact: In Germany alone, the CO2 savings potential of this process is 10Mt/yr. The IKU award underlines that we can be proud of our pioneering innovation.”

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Samson Materials Handling to supply hopper for Port of Slite

11 May 2022

Sweden: UK-based Samson Materials Handling is supplying an Eco Hopper product for installation at the Port of Slite in Gotland. The hopper will be designed to receive clinker, limestone, coal and refuse-derived (RDF) fuel pellets. These materials will be unloaded at the quay area via crane grabs. The hopper will then discharge direct to trucks via a telescopic chute.

The Eco Hopper installation under normal operating conditions and based on the client’s grab sizes and cycle time, will achieve peak discharging rates of: 353t/hr - based on clinker with a bulk density of 1.4 t/m³; 454t/hr - based on limestone with a bulk material density range of 1.8 t/m³; and 420t/hr - based on RDF Pellets with a bulk material density of 0.6 t/m³.

The Eco Hopper product design concept comprises of a specialised reception hopper unit incorporating Integral filter arrangement with a reverse jet filter media cleaning system which returns all material back in to the material stream. In addition, the inlet system of the hopper is based on the Samson Flex-Flap design which reduces the volume of air necessary to control dust both from the opening grab and displaced air from material falling into the inner hopper below. This contributes to the reduction of airflow reducing filter and power requirements of the equipment.

Commissioning and operator training will be provided by Aumund Group Field Services.

Published in Global Cement News
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Domicem awards upgrade of limestone reclaiming system at San Cristobal plant to Bedeschi

04 May 2022

Dominican Republic: Colacem Group subsidiary Domicem has awarded the contract to upgrade the limestone reclaiming system at its integrated Sabana Grande de Palenque cement plant in San Cristóbal province to Italy-based Bedeschi. The original stacking and reclaiming equipment, installed by Bedeschi in 2004, allows clay and limestone handling at the plant. The upgraded machine will improve the limestone reclaiming system, increasing its capacity from 200t/hr to 360t/hr, the capacity needed in order to feed a new production line that is being installed at the plant.

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JK Lakshmi Cement and TARA to launch limestone calcined clay cement production

03 May 2022

India: JK Lakshmi Cement has partnered with the Society for Technology and Action for Rural Advancement (TARA) to integrate calcined clay technology into its operations in order to commence production of limestone calcined clay cement (LC3). United News of India has reported that the producer says that this type of composite cement reduces the product's clinker factor by 50% and its carbon footprint by 40%.

JK Lakshmi Cement said "This partnership will be a game-changer for the cement industry, giving impetus to its efforts in mitigating emissions, combating climate change and bringing a holistic change in the surrounding communities to create sustainable livelihoods in large numbers."

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Eqiom launches CEM II/C cements in France

29 April 2022

France: Eqiom has launched its new reduced-CO2 CEM II/C cement range on the French market. The range includes the Portland limestone, slag and clinker filler CEM II/CM (SL) 42.5 N cement produced at its La Rochelle cement plant. The cement is the first product to obtain NF certification from the Scientific and Technical Center for Building (CSTB) under its new standard designation EN 195-5. The producer says that in mid-2022 EN 197-5 will assimilate into the EN 206/CN standard for use in structural concrete.

Eqiom said that the range will offer its customers a more sustainable alternative to its other NF EN 197-1 certified compositions. La Rochelle cement plant operations manager Ahmed Mansouri said “We are proud of this result, which is the result of close collaboration between the different Eqiom teams. This commitment has made it possible to provide our customers with a solution with low CO2 emissions while guaranteeing sufficient performance so as not to impact practices on the construction sites.”

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Xinjiang Tianshan Cement to establish 40Mt/yr limestone mine in Guichi District

28 April 2022

China: Xinjiang Tianshan Cement, a subsidiary of Chizhou CNBM New Materials, has acquired mining rights for the Hengshan mining area and peripheral mines in Chizhou City’s Guichi District in Anhui province for US$376m. Reuters has reported that the company plans to make a total investment of US$1.38bn in establishing its mining operations there. The mines have limestone reserves of 513Mt and will be operational until 2043.

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UltraTech Cement declared preferred bidder for limestone block in Karnataka

12 April 2022

India: UltraTech Cement says it has been declared as the preferred bidder for a limestone block in an electronic auction conducted by the Karnataka government. The block is situated in Tehsil Chittapur of Kalburgi district in Karnataka next to the company’s integrated Rajashree plant. It has a total cement grade geological resource of 530Mt of limestone over an area of 7.86km2.

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Borneo Oil increases investment in ILPP cement plant to US$12m

11 April 2022

Malaysia: Borneo Oil has increased its investment in the upcoming ILPP cement plant in Sabah to US$12m. The oil company has signed a deal to buy a 19.5% stake in the cement company from Makin Teguh. Borneo Oil previously bought shares from Makin Teguh in late 2021. The company said it is making the move to benefit from a positive outlook for the cement sector in the Brunei Darussalam–Indonesia–Malaysia–Philippines East ASEAN Growth Area. It estimates that Sabah has a demand of 1.2 – 1.4Mt/yr of cement.

Borneo Oil says it is the largest private owner of limestone reserves of cement grade quality in Sabah. The ILPP plant is located next to a limestone quarry owned by Borneo Oil and a long-term supply contract for the unit is already in place. The ILPP plant will have a cement production capacity of 0.2Mt/yr when it is completed. Commissioning of the plant is scheduled for the third quarter of 2022. The owners say it will be the first integrated plant in Sabah. It will also be the first micro-cement plant in Malaysia that will use heat recovery and a mixture of fuels, including heavy fuel oil and biomass such as a palm kernel shells.

Published in Global Cement News
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Limestone shortage in Jammu and Kashmir leaves cement workers idle

11 April 2022

India: A shortage of limestone in the Jammu and Kashmir union territory since December 2021 has resulted in cement plant workers being laid off in Udhampur district. The local sector has lobbied the regional government to supply limestone from state-controlled quarries to fix the situation, according to Asian News International. One cement plant employee interviewed by the news agency said that his plant had laid off around 80 workers from a total of 200 due to the shortage.

Published in Global Cement News
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US lime producers announce price rises

06 April 2022

US: Lhoist North America and Mississippi Lime Company have announced price increases for their products subject to existing contractual obligations.

Lhoist North America increased its prices by 10% for lime, limestone and clay products from the start of April 2022. It blamed this on inflation upon the cost of chemical additives, electricity, explosives, diesel, mining equipment, spare parts, inbound transportation, mining services and other inputs.

Mississippi Lime Company has announced that it will increase its prices by 7% from the start of May 2022. It cited a combination of market demand, inflation and supply chain issues.

Published in Global Cement News
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