Ascon specialist company SG announced on the 14th that it published a case study on road pavement construction using recycled aggregate and slag aggregate in an academic journal. According to the company's technology research institute, the case study was published in the March issue of the Journal of the Korean Concrete Institute.
The company applied Eco Steel Ascon, which has obtained Environmental Product Declaration (EPD) certification, to the surface layer of road pavement within the construction site complex of Korea Gas Corporation located in Dangjin, Chungnam. Through this, on-site applicability verification related to production and construction was conducted.
Eco Steel Ascon received the EPD certification process to enable the derivation of a carbon footprint history based on carbon neutrality Scope 3. Scope 3 refers to all direct and indirect greenhouse gas emissions caused by a company's economic activities.
The steelmaking slag aggregate used in Eco Steel Ascon was analyzed to have a higher density and more than 2.4 times higher porosity compared to general aggregates. This means that the physical bonding between asphalt and slag aggregate is more than 2.4 times stronger than that of general aggregates.
Park Kyung-won, head of SG's Technology Research Institute, said, "Eco Steel Ascon will be actively utilized in several construction sites in addition to the Korea Gas Corporation Dangjin base construction project," adding, "The EPD certification achievement will create a synergy effect for SG's overseas business expansion efforts in countries such as Ukraine and India."
In March last year, SG obtained EPD certification for four types of asphalt mixtures using recycled aggregate and steelmaking slag aggregate through an in-house performance sharing system with POSCO E&C. This is the first case in the domestic Ascon industry.
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