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http://dx.doi.org/10.14190/JRCR.2022.10.4.465

Recycling Technology Trend of Waste Concrete Powder for Carbon Neutrality in the Cement Industry  

Sang-Chul, Shin (Eco Friendly Concrete Research Center, Kongju National University)
Jin-Man, Kim (Department of Architectural Engineering, Kongju National University)
Geon-Woo, Kim (Department of Architectural Engineering, Kongju National University)
In-Gyu, Kang (Department of Architectural Engineering, Kongju National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.4, 2022 , pp. 465-474 More about this Journal
Abstract
Research on the recycling of waste concrete has been conducted mainly focusing on the production of high-quality recycled ag g reg ate, and as a result, standards and specifications for recycled ag g reg ate have been established. However, in the case of waste concrete powder, although a lot of research on its utilization has been conducted in Korea, an innovative technology leading to commercialization has not yet been announced. Recently, research on technology using waste concrete powder as a raw material for clinker or cement has been actively conducted in major overseas advanced countries. This study investigated the overseas cases with regard to high value-added recycling technology and commercialization trend of waste concrete powder for carbon neutrality in cement and concrete industries. A number of studies have reported that it is essential to completely separate the aggregate and hydrated cement paste fraction for recycling of waste concrete powder. Also in major foreig n countries such as EU and USA, commercialization and standardization of using waste concrete powder as a raw material for clinker or a additive for cement are now in progress beyond the R&D stage. Therefore, Research and standardization for recycling of waste concrete powder should be urgently carried out from the perspective of carbon neutrality in Korea.
Keywords
Carbon neutrality; Waste concrete powder; Recycling; Clinker; Standardization; Commercialization;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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