Participating as a Joint Researcher in a National Eco-Friendly Research Project
Lotte Construction announced on the 7th that it has developed a technology to reduce carbon emissions during the cement manufacturing process. The company participated in a government research project and successfully conducted a pilot application at an actual construction site.
Lotte Construction participated as a joint researcher in the research project "Development of Carbon Dioxide Reactive Hardening Cement and Secondary Construction Product Manufacturing Technology" conducted by the Korea Institute for Industrial Technology Evaluation and Planning under the Ministry of Trade, Industry and Energy. This technology was first developed in the United States and Canada. Lotte Construction localized the technology and confirmed its applicability on site.
Pavement blocks made of carbon dioxide reactive hardening cement constructed by Lotte Construction at the Osan Sema Traum construction site. Provided by Lotte Construction
Conventional cement is made by heating limestone at temperatures above 1300 degrees Celsius. This process emits a large amount of carbon. Lotte Construction's technology lowers the heating temperature by 200 degrees and reduces limestone usage by 30%, significantly decreasing carbon emissions.
"Carbon Dioxide Reactive Hardening Cement" hardens by reacting with carbon dioxide instead of water. It absorbs carbon generated during the manufacturing process itself, further reducing emissions.
Salt damage prevention coatings, paving blocks, and bricks made with this technology reduce carbon emissions by up to 70% compared to conventional products. They also have excellent durability. In December last year, the salt damage prevention coating was used at the Busan Lotte Tower site. Paving blocks were installed at the Osan Sema Traum site.
Lotte Construction employees are applying a coating agent using carbon dioxide reactive hardening cement at the Busan Lotte Tower site and taking a commemorative photo. Photo by Lotte Construction
A representative from Lotte Construction Technology Research Institute said, "We confirmed that eco-friendly new materials can be applied on site," adding, "We will secure competitive products through continuous research and development."
In November last year, Lotte Construction also developed and applied the technology for "Carbon Dioxide Injection Floor Mortar" at a site. This method injects carbon dioxide captured from industrial processes during the mortar (a building material mixed with cement and additives) mixing process. It reduces cement usage and decreases carbon emissions.
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