Gypsum industry news

UK: Portugal-based Gypfor has agreed to sell its upcoming Newport gypsum wallboard plant to Germany-based Knauf. Gypfor began building the plant at Associated British Ports’ Port of Newport in March 2021. Knauf estimates that it will commission it later in 2022, and commence full operations in 2023. The plant will be equipped with solar and wind power plants, as well as on-site gypsum wallboard recycling facilities. 54 people will be employed in gypsum wallboard production at the site. Knauf says that the addition of the new plant to its existing facilities at Immingham, Lincolnshire, and Sittingbourne, Kent, will enlarge its UK capacity by 20%.

Knauf’s UK managing director Ian Stokes said “This new plant will significantly increase our ability to service customers throughout the UK, and particularly those in South Wales, the Midlands and the South-West of England. It is a very exciting move for Knauf and, following recent investment in increasing the capacity of Knauf Insulation, reflects the confidence of the Knauf Group in the UK construction sector.”

US: CertainTeed has completed a US$1.3m upgrade to its Nashville wallboard plant in Arkansas to use recycled waste gypsum and paper. The plant will reuse 65,000t/yr of waste materials generated from the production process. The company plans to increase the amount of recycled materials in its gypsum wallboard in the future.

“In Nashville and at our manufacturing sites around the world, we remain laser-focused on reducing waste, reducing our consumption of natural resources, and increasing recycling and circularity throughout our value chain,” said Jay Bachmann, Vice President and General Manager of CertainTeed Gypsum.

US: The US Department of Energy has awarded CertainTeed its 2022 Better Project Award for the company’s installation of a 15,000t/yr production scrap paper recycling system at its Silver Grove, Kentucky, gypsum wallboard plant. The plant recycles ground paper and gypsum from the system in its gypsum wallboard production.

CertainTeed vice president environmental, social and governance North America and Saint-Gobain circular economy solutions managing director Dennis Wilson said "Our recycling technology in Silver Grove allows us to reduce our waste, reduce our consumption of natural resources and also reduce our production costs - all while continuing to produce the best gypsum wallboard product on the market.” Wilson continued “We will continue to look for ways to minimise our environmental footprint while striving to maximise our company's positive impact for our customers and the communities where we operate."

Hungary: Slovakia-based Stavmat Epitoanyag Kereskedelmi has produced its first batch of wallboard from recycled drinks cartons at its Kaposvar pilot plant in Somogy County. MTI – EcoNews has reported that the company plans to install two further production lines at the site by January 2023.

The full-scale plant will cost US$10.6m, employ 20 people and consume 50 – 70t/yr of waste drinks cartons. Stavmat Epitoanyag Kereskedelmi plans to establish a carton collection service across Southern Transdanubia. The present commissioning may lead to the establishment of a second, 10-line plant at a cost of US$21.2m.

France: Placo and Serfim Recyclage have revealed that they started operating a new 140t/day plaster recycling plant at Quincy-Voisins near Paris in October 2021. The companies say that the Pari Plâtre site is the first in the Paris region to be solely used for recycling plaster waste from construction sites.

Daily deliveries via the Placo Recycling network bring plaster waste from within a 250km radius to the site. The waste is then sorted by hand along an 80m production line to remove wood, ceramic, cardboard and polystyrene fractions. These materials are recycled separately. The plaster is crushed and screened with a 98% recovery rate. The plant stores reclaimed gypsum in two 80m³ silos. The gypsum is then transported to Placo’s gypsum wallboard plant at Vaujours for use as a secondary raw material.

Placo says it is the leading recycler of gypsum in France. Following the opening of Pari Plâtre the company has increased its plaster recycling target in 2030 target to 200,000t/yr. This will allow the subsidiary of Saint-Gobain to use up to 30% of recycled materials in the production of its wallboard products.

US: The Construction & Demolition Recycling Association (CDRA) has formed a Gypsum Recycling Committee. It intends to work with key stakeholders in gypsum recycling to improve the recovery rate. Terry Weaver, the president of USA Gypsum, will be the first chair of the committee.

The committee will be comprised of companies involved in each step of recovering gypsum wallboard, including the manufacturers, the Gypsum Association, contractors, processors and end users. Initial actions will include: creating a wallboard diversion policy; developing end product specifications; creating best management practices for contractors and processors; working with drywall companies to set post-recycled content for new wallboard; updating the CDRA’s current Gypsum Recycling Protocol to reflect these actions; promoting that recyclers must be third-party certified using a program developed to an ISO level; and defining specifications for other end products made from recycled wallboard.

US: CertainTeed has installed new recycling technology at its Silver Grove, Kentucky, gypsum wallboard plant which will enable the facility to divert 15,000t/yr of production scrap paper from landfill. The technology grinds gypsum-contaminated paper into fine pieces for separation. The subsidiary of France-based Saint-Gobain says that it will then be able to reuse both paper and gypsum in its wallboard production at the plant.

CertainTeed’s gypsum general manager and vice president Jay Bachmann said “This project allows us to reduce our waste and reduce our production costs in Silver Grove while also empowering us to increase the efficiency of our use of natural resources.” He added “We will continue to look for ways to minimise our environmental footprint while maximising our company’s positive impact for our customers and the communities where we do business.”

US: Canada-based Building materials recycling equipment supplier TORXX Kinetic Pulverizer has launched TORXX Kinetic, a new wholly owned subsidiary. The company’s headquarters are in Chattanooga, Tennessee. TORXX Kinetic Pulverizer chose the location in order to be closer to its customer base.

Vice president Terri Ward said that in 2021 “Covid-19 pandemic-related travel restrictions hindered growth, with our North American headquarters in Canada and most of our customers and new opportunities in the US.” Ward continued “We are maintaining a presence in Toronto with engineering and service resources. However, key personnel and new hires are now in the US, making it much easier to collaborate and respond to customer needs. We were attracted to the Scenic City because of its favourable manufacturing and transportation resources, proximity to our customers, and its appeal to our valued employees.”

TORXX Kinetic Pulverizer’s kinetic pulveriser is a waste processing technology which relies on aerodynamics and matter-on-matter collisions for particle size reduction. Vortices agitate feedstock, causing more brittle material to shatter while less brittle material remains larger. This size differential facilitates the liberation and mechanical separation of contaminants.

Belgium: Etex’s 2020 Sustainability Report has recorded the company’s progress towards its sustainability goals under four headings. Under the heading ‘carbon neutrality,’ it produced and purchased 72% of its electricity consumption renewably, compared to 14% in 2019. Under ‘health, safety and wellbeing,’ its lost-time accidents per million working hours fell by 36% year-on-year to 1.4 from 2.2. Under ‘waste management and circularity,’ it reduced its waste generation by 8.9% to 254Mt from 278Mt and reduced the share of its waste sent to landfill to 18% from 26%. Lastly, under ‘diversity and inclusion,’ 28% of the company’s newly hired staff were women, compared to a group total share of 19%.

CEO Paul van Oyen said “At Etex, we have a clear commitment to helping build a better, sustainable future. We seek to offer holistic value to our customers, employees, shareholders and other stakeholders, as we continue to decouple our growth from environmental and social impacts. To help achieve this, we focus on lightweight materials and prefabricated construction. These methods offer advantages such as reduced raw material use, energy consumption, waste and emissions. Even more, they contribute to enhanced long-term circularity by creating opportunities for deconstruction, reuse and recycling.”

Canada: Dalhousie University, in collaboration with the Canada and US joint Gypsum Association and Divert NS, has entered Phase 2 of its research project into uses of construction and demolition waste gypsum in concrete. The research, continuing until September 2023, will test the durability of various concrete mixes containing gypsum powder recycled from waste drywall. It will examine 81 specimens under three environmental exposures and three exposure durations. The team will use the results to understand the performance and environmental benefits of concrete containing recycled gypsum over the life of a structures. Study leader and Canada research chair in sustainable infrastructure Pedram Sadeghian said that Phase 1 of the study had demonstrated that gypsum could be a viable supplementary cementing material when combined with fly ash in concrete.

Sadeghain said “Our research group aims to study the durability of concrete containing recycled gypsum by monitoring compressive strength and potential expansion after exposure to selected environmental conditions, such as moisture and salt particle penetration, that are common to concrete structures exposed to the environment.”

Gypsum Association executive director Stephen Meima said “The gypsum industry is committed to landfill diversion of construction and demolition gypsum panel waste, and Professor Sadeghian’s work demonstrates that waste gypsum panels may have value beyond their service life in buildings and homes.”