Displaying items by tag: pozzolan

Peru: Unacem Perú plans to 'significantly increase' its cement production capacity 'in the medium-term future.' Prior to that, the producer will invest US$130m in capital expenditure during 2023, double what it invested in 2022. The investments will go towards slightly expanding the producer's capacity from 8.3Mt/yr and increasing alternative raw materials use in its cement production, including pozzolan and ground granulated blast furnace slag (GGBFS). Additionally, it will open its new Manchay limestone quarry in Pachacámac in early 2023.

Unacem said that it increased its cement sales 'unexpectedly' during 2022. It operated at 85 - 90% capacity utilisation, and continued to export clinker.

US: Bulk material handling equipment supplier MDG America says that it delivered four chain bucket elevators for Drake Cement's upgrade of its Paulden cement plant in Arizona. Drake Cement installed a new vertical mill grinding plant for cement, granulated blast furnace slag (GBFS) and raw materials grinding at the 0.7Mt/yr integrated plant. The supplier says that two of the elevators will work in a pair, conveying material from a feeder belt, while a third will convey it to the new mill. The fourth elevator will then collect the material for further grinding and metal discharge.

Drake cement secured approval to mine pozzolan for use in the Paulden's plants cement production at Bill Williams Mountain earlier in October 2022. As part of minimising the future mine's impacts, Drake Cement has offered to help the US Forestry Service to thin local woodland as part of local anti-fire management efforts.

India: Four UltraTech Cement cement products have received Environmental Product Declaration (EPD) certification. UltraTech Cement's ordinary Portland cement (OPC), Portland pozzolana cement (PPC), Portland slag cement (PSC) and Portland composite cement (PCC) all successfully underwent lifecycle assessment studies in line with EPD requirements.

The Aditya Birla subsidiary said that 70% of its cement sales consist of blended cement. It offers over 70 different GreenPro certified products across its range.

Italy: Buzzi Unicem has obtained technical evaluation certification for CEM II/C-M Portland composite cement products to be manufactured at its Trino, Vernasca, Settimello, Guidonia, Barletta and Augusta plants. The new cements will be part of its C-Green product line and the sustainability objectives from its 2030 roadmap. The new products will reduce their clinker factor by using granulated blast furnace slag, fly ash, pozzolan and limestone. They potentially offer up to a 40% reduction in CO₂ emissions per tonne compared to CEM I equivalents. They will be available in 32.5 N/R and 42.5 N/R strength classes for a range of applications. The cement producer hopes that the new products will quickly establish themselves in the market and even becoming the “standard cement” in Italy by 2030.

UK: Aggregate Industries and Coomtech have partnered to develop low-energy kinetic drying technology for pulverised fuel ash (PFA) from power plant. The partnership will see Aggregate Industries use Coomtech’s kinetic dryers in its PFA processing, as part of its effort towards increasing the volume of waste materials incorporated in its products to 3Mt/yr from 1.5Mt/yr by 2025. The project has attracted funding from the UK government Department of Business, Energy and Industrial Strategy (BEIS).

Chief commercial officer Chris Every said “We’re delighted to have the support of Aggregate Industries in this grant project. Coomtech is especially pleased to have the business’ ongoing technical and commercial input to the project operation and analysis of performance. In addition, the opportunity to work together with a brand that is leading the way in creating new materials that will prove fundamental to the future of the construction sector and meet net zero objectives.” Every continued “The added benefit of our new drying technology is its flexibility - providing the potential to dry a wide range of materials being considered to aid the greening of the cement industry, including limestone, ground blast furnace slag (GBFS), natural pozzolans and other crushed and milled minerals that can offer an activated character to combine in cement and concrete mixes.”

US: Eco Material Technologies, a producer of sustainable cementitious materials, has opened its Kirkland Pozzolan Mine in Yavapai County, Arizona. The 40-hectare site is one of the largest natural pozzolan mines in the US.
"We are excited for the opening of the Kirkland Pozzolan Mine, which will benefit not only Yavapai County but all of Arizona as well as the surrounding region," said Grant Quasha, CEO of Eco Material Technologies. "Without the support of elected officials, including Governor Doug Ducey, Senator Mark Kelly, State Senator Karen Fann and State Representative Quang Nguyen, we would not be celebrating this milestone achievement."

The event also recognised the hard work and dedication of the plant's employees, as well as Eco Material's contributions to the area including bringing wireless internet service to the surrounding community, planting new trees and generating significant tax revenue for the state.

Saudi Arabia: Al Kifah Ready-Mix & Blocks (KRB) has announced the upcoming launch of its ConGreen reduced-CO₂ concrete products range at the Big 5 Saudi construction summit on 28 – 31 March 2022. ConGreen concretes replace clinker with lower-carbon materials such as pozzolan and use Canada-based Carbon Cure Technologies’ embedded recycled CO₂ technology to reduce its carbon footprint by up to 30% compared to conventional ordinary Portland cement (OPC) concretes. In addition to this, KRB says that ConGreen concretes also provide improved workability and pumpability properties, as well as being highly durable, with high passing and finishability. They have very low rapid chloride permeability (RCP), water absorption and water permeability properties and low heat of hydration.

General Manager Nigel Harries said “We are committed to driving energy efficiency and addressing the global emission challenges. We aim to help build a better community and environment-friendly facilities by producing high-quality concrete, such as ConGreen, that has a reduced environmental impact and is characterised by its high performance, durability and sustainability, with a low carbon footprint as compared with standard concrete.”

Ghana: Daniel Asenso-Gyembibi, the director of the Building and Road Research Institute of the Council for Scientific and Industrial Research (CSIR-BRRI), has told parliamentarians that the institute’s Pozzolana cement plant needs US$4m to reopen. The unit at Gomoa Mprumem in the Central Region was forced to close due to a lack of private investment, according to the Ghanaian Times newspaper. Asenso-Gyembibi said that CSIR-BRRI had spent around US$250,000m on the project.

Commercial production started at the plant in 2011 with a capacity of around 5000bags/day. However, the unit stopped operation later in the same year due to poor sales and a lack of investment.

US: Pozzolan cement producer Green Cement has appointed Grant Quasha as its chief executive officer (CEO). He succeeds John T Preston, who will remain as chairman of the board. Quasha will be based in Texas, where the company has its headquarters and existing production facilities. He will also be joining the company's board of directors.

Quasha previously worked as the regional chief investment officer of GFG Alliance. Before this he was the CEO and managing director of Paringa Resources, a mining company, and the chief commercial officer of Wolverine Fuels, a producer of bituminous coal. He also worked as the North American Manager of Corporate and Structured Finance at Trafigura AG, as an investment banker in JPMorgan's New York mining and metals division and has worked on the board of directors of the National Mining Association. Quasha holds a Bachelor of Arts degree from Harvard College and a Master of Business Administration (MBA) from Harvard Business School.

Green Cement produces cements made using pozzolonic materials including its PozzoSlag product. It sold over 2Mt of cement in 2020.

Canada: Progressive Planet and sustainable construction company ZS2 have signed a letter of intent to collaborate on green cement technologies development. The pozzolan-based cement producer will supply ZS2 with 10,000t/yr of natural pozzolan, beginning in late 2021. It will also purchase US$300,000-worth of shares in ZS2. The companies will also explore sequestering CO₂ in magnesium-based cements.

ZS2 chief executive officer Scott Jenkins said "The technical collaboration between PLAN and ZS2 continues to grow. The potential to reduce the carbon footprint of innovative cement products is significant with the combination of our mutual research and commercialisation to date. ZS2's growing portfolio of high performance, fire-resistant and sustainable building technologies will be greatly enhanced by our expanding partnership, and we are extremely excited about our shared future potential."