POSCO Supports Venture Companies Producing Eco-Friendly Cement from Steelmaking Byproducts

Contribution to Carbon Emission Reduction During Cement Production

POSCO, POSCO Engineering & Construction, and Daeryuk New Materials signed a business agreement on the 25th at POSCO Center to cooperate in spreading eco-friendly cement that reduces carbon emissions using steel slag. From the left in the photo: Kim Dae-up, Head of POSCO Hot Rolled Marketing Office; Seon In-myeong, CEO of Daeryuk New Materials; Nam Seong-hyeon, Head of POSCO Engineering & Construction R&D Center. Photo by Kim Dae-up

[Asia Economy Reporter Oh Hyung-gil] POSCO Group has partnered with a venture company to enable the use of steel by-products as eco-friendly cement raw materials.

On the 25th, POSCO, POSCO Engineering & Construction, and Daeryuk New Materials signed a business agreement at the POSCO Center in Seoul to establish an ecosystem for low-carbon eco-friendly cement utilizing water-quenched slag.

POSCO plans to supply water-quenched slag stably, POSCO Engineering & Construction will apply the developed products to actual construction sites to support quality verification, and Daeryuk New Materials is expected to develop eco-friendly cement used in construction materials such as paving blocks and apply it to construction sites.

Daeryuk New Materials is a venture company located in the Pohang Blue Valley National Industrial Complex that received technology transfer for manufacturing non-limestone cement from Ulsan National Institute of Science and Technology (UNIST) and manufactures resource-circulating eco-friendly construction materials and building materials.

Producing 1 ton of cement generates about 0.8 tons of carbon due to fossil fuel use for the thermal decomposition of limestone. The water-quenched slag supplied by POSCO is a by-product discharged together with molten iron from the blast furnace, rapidly cooled using water, and has a composition similar to cement.

Last year, POSCO applied eco-friendly asphalt concrete developed by Daeryuk New Materials using water-quenched slag to road construction within the Pohang Steelworks.

Sun In-myeong, CEO of Daeryuk New Materials, said, "We sincerely thank POSCO for its interest and support, and we will expand the development of low-carbon eco-friendly cement products based on water-quenched slag to grow as an eco-friendly material company."

Kim Dae-eop, Head of POSCO Hot Rolled Steel Wire Marketing Office, said, "We will continue to support so that POSCO steel by-products can become eco-friendly cement raw materials and contribute more to carbon reduction," adding, "We will contribute to the national task of carbon reduction and assist market development for companies producing eco-friendly products, fulfilling POSCO’s role as a corporate citizen."

This content was produced with the assistance of AI translation services.