Displaying items by tag: Waste

Mexico: Cemex has reviewed its global sustainability and financial performance during 2022 in its Integrated Report 2022. During the year, the group reduced its specific CO₂ emissions by 9% from 2020 levels and by 30% from 1990 levels. It achieved a target of US$1bn-worth of investment in strategic projects over a period begun in 2020. Projects included the execution of water optimisation plans at 20% of Cemex sites in high-water stress areas. Cemex co-processed 27Mt of waste as alternative fuel (AF) in its global cement production - 67 times greater than its own non-recyclable waste footprint - and achieved an AF substitution rate of 35%. Meanwhile, the group also reduced its cement's clinker factor to 74%. Its Vertua reduced-CO₂ concrete range accounted for 33% of its concrete sales. During the year, Cemex launched the world's first net zero, fully electric heavy concrete mixer truck.

In 2022, Cemex recorded sales of US$15.6bn, down by 12% year-on-year, and reduced its debt to US$408m.

Finland: VTT Technical Research Centre subsidiary Carbonaide has concluded its seed funding round, having raised funds worth Euro1.8m. Lakan Betoni, which produces precast and ready-mix concrete, led the funding, along with utilities provider Vantaa Energy. Carbonaide will use the funds to build an industrial pilot plant for its carbon neutral precast concrete product at an existing precast concrete plant in Hollola. The plant will bind captured CO₂ in the product at atmospheric pressure. The process generates 50% lower CO₂ emissions than precast concrete production using ordinary Portland cement (OPC). Suitable raw materials include ground granulated blast furnace slag (GGBFS), green liquor dregs and bio-ash. In trial production, the use of GGBFS gave Carbonaide's concrete a negative carbon footprint of -60kg/m³.

Other sources of loans and in-kind contributions included Finnish state innovation fund Business Finland.

Philippines: Holcim Philippines recorded sales of US$490m during 2022, down by 1% year-on-year from US$499m. Sales rose by 9% year-on-year to US$266m during the second half of the year, 53% of the full-year figure. Throughout the year, the producer increased its alternative fuel (AF) substitution rate by 20% year-on-year and processed 1Mt of waste from industrial partners and local government bodies. Digitisation initiatives and alternative raw materials substitution helped the producer to reduce its specific CO₂ emissions by 7%. The Business Mirror newspaper has reported that the year also brought 'surging' energy and fuel costs for the producer.

President and CEO Horia Adrian said "In the face of extraordinary challenges, our company and people displayed tremendous resilience that enabled us to deliver positive financial performance and contribute to building progress in the country. Alongside a strong sales rebound in the second half and expansion of our customer base, we accelerated the decarbonisation of our operations."

India: Dalmia Cement has awarded a contract for the supply of fly ash and other industrial waste to Vedanta Aluminium. Under the deal, Vedanta Aluminium will supply fly ash for use at Dalmia Cement’s cement plants across Odisha, Chhattisgarh, Meghalaya and Assam. It will deliver spent pot linings to the producer’s Rajgangpur cement plant in Odisha. The fly ash contract will remain in effect until 2028 and the pot lining contract until 2026.

Vedanta chief executive officer Sunil Gupta said “Strategic collaborations such as this will provide multiple benefits in terms of enhanced quality, sustainability and cost benefits to cement manufacturing, while helping us in gainful waste management. Our waste-to-wealth initiatives are designed to develop thriving value-chains for converting our by-products into resources for complementary industries.”

Egypt: Researchers at the University of Cairo have used nanomaterials from agricultural wastes to produce biocement with 'increased strength and durability' compared to ordinary Portland cement (OPC). The study employed microbially induced calcite precipitation (MICP) with the addition of carbon nitride nanosheets and ash from waste maize cobs. Besides its improved physical performance, the researchers also found that their biocement offers improved endurance against water permeability.

Jamaica: Cemex subsidiary Caribbean Cement has co-processed 1t of waste at its Rockfort cement plant under the National Environment and Planning Agency's Adopt-a-Beach programme. Since July 2022, the producer has also recovered 500kg of recyclable materials for processing by its partners. The Our Today newspaper has reported that the cement company has carried out three cleans of its adopted beach, Sirgany Beach, to date.

Philippines: CRH subsidiary Republic Cement and its waste management subsidiary Ecoloop are seeking to establish partnerships with 'sustainability-minded' organisations. BusinessWorld News has reported that Republic Cement and Ecoloop process waste for 12 private companies and 30 local government units. Philippines law will require that large organisations recover 80% of their plastic packaging waste by 2030. For 2023, the minimum is 2023.

Ecoloop managing director Angela Edralin-Valencia said “Our goal is to make our cement a greener and more environmentally friendly product. Our ambition is to replace 50% of our fuel consumption with alternative fuel (AF)." She added "A lot of investments have to be put in place from our end to get to that number, but we are still reviewing our options.”

Thailand: ThyssenKrupp Polysius says that it has successfully supplied and installed a Prepol SC alternative fuels (AF) system at a 12Mt/yr cement plant in Thailand. The system will supply the plant's four lines with 4000t/day of AF.

ThyssenKrupp Polysius' Asia Pacific CEO Lukas Schoeneck said "Asia Pacific, with its tremendous municipal solid waste (MSW) problem, is ideal when it comes to replacing coal with AF. The Prepol SC technology significantly reduces the need to treat MSW before using the inherent calorific value. Additionally, it helps to further reduce the ambitious CO₂ limit targets in the region."

UK: Germany-based Heidelberg Materials has signed a deal for the acquisition of Mick George Group, the leading concrete recycling company in the East Midlands and East of England. Mick George Group’s 40 sites span bulk excavation, earthmoving and demolition services and demolition waste removal and management, as well as ready-mix concrete and aggregates distribution.

Heidelberg Materials Western and Southern Europe director Jon Morrish said “With the acquisition of Mick George, we are clearly moving towards establishing a truly circular materials and services offer in our UK business. I warmly welcome all 1000 Mick George employees to Heidelberg Materials and look forward to further developing the business together.”

Heidelberg Materials aims to offer circular alternatives for half of its products by 2050.

Colombia: Cemex has announced the launch of the Tunjuelo Circularity Centre at its former Tunjuelo quarry near Bogotá. Having rebuilt parts of the 50m-deep quarry with demolition waste, Cemex will now work on its ecological restoration, while continuing to receive excavation waste for reconstruction of the ground. It will meanwhile divert demolition waste deliveries for recycling in aggregate production. In Bogotá, Cemex has launched an initiative for urban construction partnerships in collaboration with local authorities. It will also collect municipal solid waste (MSW) there for use in its cement production and collect its used plastic cement bags for recycling in building materials production.

Cemex’s Colombia and Peru president Alejandro Ramírez said "This is a pioneering model for Cemex in the construction materials industry globally, which we aim to position as a benchmark for circularity within the sustainable development of large cities in Colombia and the world. A piece of land that supplied materials for Bogotá's development for decades has received construction and demolition waste for its redevelopment and was transformed into a green area to the south of the city, an epicenter of the circular economy and an opportunity for urban development for the capital city of Colombia."