Displaying items by tag: Portland Limestone Cement

US: The Portland Cement Association (PCA) has announced the winners of its Energy and Environment Awards 2021. The awards recognise cement plants’ outstanding environmental and social efforts beyond what is required.

CalPortland’s Mojave plant in California won the Energy Efficiency award for an efficiency-increasing upgrade to its vertical roller mill, which included the introduction of a bottom hopper cone on each of its cyclones and a replacement of its mill fan housing. Argos USA’s Calera plant in Alabama won the Land Stewardship award for its conversion an 8.5ha lime kiln dust stockpile into grassland. The area now forms a vibrant ecosystem including wetland habitats. The producer also installed ponds with the additional purpose of stormwater management. Titan America’s Pennsuco plant in Florida won the Overall Environmental Excellence award for its conversion of the plant’s kiln to natural gas from coal use. The upgrade has also enabled the plant to begin to substitute alternative fuel (AF) in the kiln. The Pennsuco plant plans to produce 100% Portland limestone cement (PLC) by ‘as early as 2023.’

Other awards went to Roanoke Cement’s Troutville, Virginia, plant in the Environmental Performance category and to Cemex USA’s Victorville, California, plant in the Outreach category.

PCA President and CEO Michael Ireland said “The US’s cement manufacturers continue to focus on researching and developing new and innovative ways to reduce their environmental footprint. These accomplishments and industry commitment to carbon neutrality across the entire value chain demonstrate PCA members’ dedication to energy efficiency and a more sustainable future.”

US: Titan America says that 100% of its Pennsuco cement plant in Medley, Florida’s, cement production will be lower-carbon Portland limestone cement (PLC) by ‘as early as 2023.’ The cement, called Type IL, has 15% reduced CO₂ emissions compared to ordinary Portland cement (OPC), according to the company.

Mid-Atlantic regional president Kevin Baird said “We are serving large customers in E-Commerce, cloud services and infrastructure. These customers are committed to sustainable development and are demanding solutions for green construction. Low carbon cement, such as our Type IL, is one of the ways we are meeting the needs of our customers for these projects.”

Sri Lanka: Lanwa Sanstha Cement says that it will commission its Hambantota grinding plant in the Mirijjawila export processing zone of Hambantota International Port in January 2022. The company says that the plant will have a capacity of 3Mt/yr and cost US$80m. The Daily News newspaper has reported that the owner aims to help to counteract the domestic cement shortage.

Chair Nandana Lokuwithana said "One of the highlights of this first-of-its-kind facility in Sri Lanka will be the emphasis on new technology, with all mixing carried out using the latest European technology, while much of the other equipment used throughout the production process has been customised by world-renowned pioneers in innovation with environmental friendliness in mind." He added "Packaging is done using state-of-the-art technology for improved efficiency and minimal wastage."

Once commissioned, the Hambantona plant will produce ordinary Portland cement (OPC), Portland slag cement (PSC), Portland limestone cement (PLC) and blended hydraulic cement (BHC), according to Lanwa Sanstha Cement.

US: GCC plans to fully convert production at its 0.35Mt/yr Trident Plant in Montana to Portland Limestone Cement (PLC) in early 2022. The cement producer estimates that the plant’s production change will reduce its CO₂ emissions by almost 25,000t/yr.

“We believe that our industry must continue to provide the homes, roads and infrastructure that shape our world while, simultaneously, addressing the challenge of climate change,” said Ron Henley, president of GCC’s US division. “PLC is one piece of the puzzle to reduce greenhouse gases. Concrete made with PLC is a resilient material that easily meets the needs of our customers for generations to come.” He added that GCC signed the Global Cement and Concrete Association’s (GCCA) net zero pledge earlier in 2021.

US: Lehigh Hanson has launched a new bag design for its EcoCemPLC product, a Portland Limestone Cement. Features of the refreshed packaging design for EcoCemPLC include the ‘reduced carbon footprint’ icon, featured prominently in the new bag design to emphasise EcoCemPLC’s carbon-reduction benefit. The newly designed bag will be released to retail and dealers in October 2021.

“The new bag design and transition to EcoCemPLC is about more than aesthetics - it’s about clearly communicating the proven benefits of EcoCemPLC to sustainably minded customers,” said Alex Car, president of Lehigh Hanson’s Northeast Region.

US: LafargeHolcim US says that the integrated 2Mt/yr Midlothian plant in Texas will become the first cement plant in the country to fully convert to Portland Limestone Cement (PLC) production. The unit will switch to producing the company’s OneCem product, a blended cement manufactured with up to 15% of finely ground limestone. The move is intended to help LafargeHolcim US and its customers meet sustainable construction goals and lower carbon emissions.

“This is an important, but not unique, step for us. We were the first to produce OneCem, a PLC product, in one of the fastest-growing metro areas in the country, and fuel our industry’s step towards a zero carbon future,” said Patrick Cleary, senior vice president of sales, LafargeHolcim US Cement.

The company is promoting OneCem as an alternative to Ordinary Portland Cement in terms of concrete workability, set time, durability and strength development. It can be incorporated into a broad spectrum of applications that will support foundational structures. The product is available in the Western and Southern regions of the US and the company plans to ‘rapidly’ expand production.

Bangladesh: LafargeHolcim Bangladesh has unveiled its Supercrete Portland limestone cement (PLC) bag redesign. The new bag features the tagline ‘Top quality, proper construction’ in Bengali. The Switzerland-based LafargeHolcim subsidiary produces the cement with limestone from Meghalaya, India. It says that its product is the only PLC on the Bangladeshi market.

Canada: Lehigh Hanson has launched of EcoCem Plus at its Edmonton cement plant in Alberta. The product is a blended Portland Limestone Cement (PLC) made using inter-grinding clinker, fly ash, limestone and gypsum. It is available in Alberta, Saskatchewan and Manitoba. The subsidiary of Germany-based HeildebergCement says it provides strength and durability while reducing the carbon footprint of concrete.

“The motivation behind the EcoCem brand of products is to reduce the embodied carbon of cement and concrete,” said Shawn McMillan, Vice President, Cement for Lehigh Hanson’s Canada Region. “The introduction of EcoCem Plus to the Prairie market builds on our commitment to providing environmentally responsible types of cement that deliver excellent performance while dramatically reducing CO2 emissions.”

Lehigh Cement has also published product and plant-specific environmental product declarations (EPD) for all of its cement products produced at its Edmonton plant.

US: The Portland Cement Association has launched greenercement.com, an informative website site dedicated to Portland Limestone Cement (PLC) applications and benefits. The organisation says that PLC’s 10% reduced carbon dioxide (CO₂) emissions when compared with Ordinary Portland Cement (OPC) make it the sustainable choice for innovative construction.

President and chief executive officer (CEO) Mike Ireland said, “PLC is another example of the cement industry evolving over the years, continuing to innovate and sustainably producing the high-quality cement that is needed to help keep America’s infrastructure strong and resilient.” He added, “This initiative will help educate engineers and other specifiers on how PLC can easily be incorporated into numerous projects.”

US: LafargeHolcim subsidiary Holcim US has rebranded its blended cement and supplementary cementitious materials range as Envirocore. Envirocore products include OneCem Portland limestone cement, MaxCem blended cement and NewCem slag cement.

The company noted that the partial substitution of cement with supplementary cementitious materials “not only results in more durable, high-performance concrete, but also lowers energy consumption and greenhouse gas emissions. CO₂ emissions are reduced by approximately 800,000kg/t of clinker replaced.” It also called on consumers to “adopt solutions that lower carbon emissions.”