Displaying items by tag: recycling

UK: Holcim has acquired recycled concrete and aggregates producer Wiltshire Heavy Building Materials. Wiltshire Heavy Building Materials' material recovery system enables it to process 150,000t/yr of construction and demolition waste for recycling. It operates multiple plants across Wiltshire, Berkshire, Gloucestershire and Oxfordshire, and generated Euro20.6m in sales in 2021.

Switzerland-based Holcim said that the acquisition will expand its UK subsidiary Aggregate Industries' position in the area between London and the West of England, and help the group to achieve its goal of 10Mt/yr-worth of construction and demolition waste recycled globally by 2025.

Germany: Dyckerhoff’s Dillingen ready-mixed concrete plant is the company’s first unit to be awarded the R module of the Concrete Sustainability Council (CSC). The unit has been using recycled aggregates in the standardised proportions and types since August 2021 and now customers and clients can have the certified sustainable concrete counted as part of building certifications. The recycled aggregate used in the Dillingen plant comes from a recycling company in the immediate vicinity, so there are no transport costs, which, in addition to the aspect of resource conservation, also contributes to the avoidance of transport-related CO₂ emissions.

Canada: Holcim has announced its acquisition of Mathers Group’s quarry and asphalt assets in Quebec. The group says that the acquisition will accelerate its development of local circular construction practices by expanding its recycled concrete offering.

Indonesia: Finland-based Betolar has introduced its Geoprime reduced-CO₂ concrete technology into the Indonesian market. Geoprime facilitates the production of reduced-CO₂ concrete using industrial side streams.

Betolar head of Asia Juha Pinomaa said "The concrete industry is facing a pivotal moment in the global fight against climate change, and Indonesia is taking urgent action in changing the way cities are built. Betolar's Geoprime solution can unlock the construction industry's challenge to reduce their CO₂ emissions. It's not surprising that we are seeing rapid growth, especially in South East Asia, where urbanisation is among the fastest in the world."

Spain: Cemex España has supplied concrete from its Vertua Plus range for the construction of an 81-home housing development in Madrid. The estate, called Torrejón Park, will be Spain’s first to be built entirely from Vertua reduced-CO₂ cement. Cemex España says that the products used offer 50 – 70% lower CO2¬ emissions than ordinary concrete. Developer Neinor Homes will additionally recover over 80% of construction waste for recycling.

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.”

France: Eqiom’s demolition waste recycling plant Gennevilliers in Paris has processed 10,000t of material since it opened in January 2022. The site has a target of 50,000t/yr in its first year of operation. Sand, gravel and larger aggregate fractions are screened from the concrete in a ratio of 40%, 20% and 40% respectively, according to Le Moniteur. The gravel is used at a nearby concrete plant whilst the sand and aggregate is used mostly in road construction.