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S. Korea, US, Japan condemn N.Korea launches, reaffirm peninsula denuclearization goal
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Seoul defense chief accuses Russia of using North Korean weapons in Ukraine attack
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South Korea, Japan defense chiefs agree to put past behind them at Singapore meeting
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N. Korea sends some 720 more trash-carrying balloons to S. Korea, continues GPS jamming for 5 days
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N. Korea continues GPS jamming attack for 4th day
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NewJeans makes Billboard's 21 Under 21 list for 2024
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N. Korea sends some 90 balloons carrying trash to S. Korea: Seoul's military
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Seoul defense chief thanks Congress for bill keeping US troops in South Korea
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S. Korea warns of 'unendurable' actions against N. Korea unless it stops provocations
South Korea’s No. 1 builder said it carried out joint research with Hyundai Motor Co., Kia Motors Corp. and Hyundai Steel to replace the use of sand and limestone with industrial by-products from car glass and electric arc furnaces, including slag ― a leftover material after coal is smelted in an electric furnace.
It added the production process to turn the materials into asphalt can be attained at a relatively low temperature of 120 degrees Celsius, compared to the more conventional 150-160 C. Lower heat translates into less energy used, bringing down production costs.
“Lower heat used also means less greenhouse gases released into the atmosphere, while the overall production process can allow effective recycling of glass from cars and furnace slag,” the company said in a press release. (Yonhap)
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Articles by Korea Herald
