Korea Institute of Civil Engineering and Building Technology

Korea Institute of Construction Technology

Do Gyeum Kim

Ho Jae Lee

Eun A Seo

In accordance with the present invention, provided is a method for producing a solidifying material for radioactive waste disposal, the method including a first step (S) of pulverizing radioactive concrete waste and separating aggregates and paste and a second step (S) of using the paste to produce a solidifying raw material, wherein the second step (S) includes a calcination treatment step (S) of calcining a mixture obtained by mixing an additional material with the paste; a sintering treatment step (S) of sintering the mixture in a sintering furnace after the calcination treatment step (S); and a rapid-cooling treatment step (S) of rapid-cooling the mixture after the sintering treatment step (S) to produce a clinker.

Method for producing solidifying material for radioactive waste disposal via recycling of radioactive concrete and method for disposing of radioactive waste using the same

Provided are a method of semi-quantitatively evaluating concrete carbonation including the steps of a specimen preparing step of preparing a concrete specimen for identifying a degree of carbonation, a carbonation depth measuring step of measuring a carbonation depth of the specimen by a method of promoting carbonation of the specimen using a carbonation promoting tester and applying an indicator, an X-ray diffraction (XRD) analyzing step of qualitatively analyzing components of the specimen by an XRD method after cutting the specimen from a top end to a predetermined depth and crushing the specimen. Thus, the method of the present invention may calculate the exposure time of concrete carbonation by converting the analysis result value of XRD to the result value of TG-DTA.

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Goyang-si, South Korea

Do Gyeum Kim