South Korea: Researchers at Incheon National University have discovered an optimal conductive carbon fibre volume for cement-based conductive composites for use in net-zero energy buildings. The team reported that a 1% conductive carbon fibre content facilitates maximum energy generation from the movements of occupants and the weather against floors and walls. It also enables the storage of electricity at safe voltages. The product is based on triboelectric nanogenerator (TENG) technology.

The team published its results in the journal Nano Energy in November 2021.

Germany: Cemex Zement has partnered with sustainable technology supplier Orcan Energy for the establishment of a waste heat recovery (WHR) plant at its Rüdersdorf, Brandenburg, cement plant. Orcan Energy will supply six generator modules for the installation. When commissioned in mid-2022, the WHR plant will cover part of the plant’s energy consumption. The German Federal Ministry for Economic Affairs and Energy contributed 50% of funds for the project.

Europe, Middle East, Africa & Asia regional president Sergio Menendez said “Efforts to achieve carbon neutrality at our Rüdersdorf cement plant by 2030 continue apace, and this project to install a WHR system is the latest significant milestone in our journey. It further demonstrates the value of forming expert alliances to investigate and then implement innovative technologies that will ensure the decarbonisation of our operation.”

Ireland: CRH’s consolidated sales rose by 11% year-on-year to US$22.8bn in the first nine months of 2021, according to the group’s nine-month trading update. The company recorded earnings before interest, taxation, depreciation and amortisation (EBITDA) of US$3.9bn, up by 15% year-on-year. CRH forecast a full-year EBITDA of US$5.25bn.

CRH said that it invested US$1.4bn in new acquisitions in the first nine months of 2021. It added that there remains a strong pipeline of opportunities open to it. At the end of the third quarter of 2021, the company had completed US$800m-worth of its share buyback programme.

Chief executive officer Albert Manifold said “CRH continues to perform well, with good underlying demand and pricing progress across our key markets. Our uniquely integrated and solutions-focused business model has supported further margin expansion across our businesses, while our strong cash generation and disciplined approach to capital allocation provides further opportunities to create value for all of our stakeholders.” He added “Looking ahead to the remainder of the year, we expect to deliver another record performance for the group.”

Philippines: Singapore-based Blueleaf Energy says that it has secured a 20-year solar power supply with Holcim Philippines. The companies have signed a power purchase agreement whereby Blueleaf Energy will finance, build and operate a total of 29MW of solar power infrastructure in Norzagaray, Bulacan, and Bacnotan, La Union. These will supply 15% of the energy requirements of Holcim Philippines’ Bulacan and La Union cement plants respectively. Construction is scheduled for completion in 2024.

Holcim Philippines president and CEO Horia Adrian said “Reducing the carbon footprint of our operations is one of our key sustainability commitments. This year, we have made great progress in this area by stepping up production of blended cements and replacing coal with alternative fuels. Shifting to renewable solar energy will help us further improve as an environment steward and a partner in building progress in the country sustainably.”