The present invention relates to a novel high-durability concrete composition for an undersea concrete anchor, which provides high durability such as salt resistance, long-term strength enhancement, and the like to be advantageously applied for a gravity-type concrete anchor for supporting an undersea floating structure, and a method for manufacturing an underwater concrete anchor preferably using the same. According to the present invention, the high-durability concrete composition for an undersea concrete anchor comprises: an eco-friendly binder formed by including fine blast furnace slag powder, anhydrite, slaked lime, and cement kiln dust (calcium lactate); aggregates; and admixtures, wherein a water-binder ratio is 35 to 55 wt%, a unit binder amount is 300 to 500 kg/m^3, a unit fine aggregate amount is 700 to 900 kg/m^3, and a unit coarse aggregate amount is 750 to 1,000 kg/m^3. Moreover, the method for manufacturing an undersea concrete anchor manufactures an undersea concrete anchor by using the high-durability concrete composition, wherein the undersea concrete anchor is manufactured by burying reinforcing bars inside a concrete anchor while exposing lifting rings to the outside and forming the concrete anchor into blocks and the reinforcing bars and the lifting rings are coated with an MgO-based phosphoric acid ceramic coating agent.

    본 발명은 내염성, 장기강도 증진 등 고내구성 발현이 가능하여 해중 부유구조물의 지지를 위한 중력식 콘크리트 앵커용으로 유리하게 적용할 수 있는 새로운 조성의 해중 콘크리트 앵커용 고내구성 콘크리트 조성물과, 이를 바람직하게 이용한 해중 콘크리트 앵커 제조방법에 관한 것이다.본 발명에 따른 해중 콘크리트 앵커용 고내구성 콘크리트 조성물은, 고로슬래그 미분말, 무수석고, 소석회, 시멘트 킬른더스트(Cement Kiln Dust, 칼슘 락테이트(Calcium Lactate)를 포함하여 조성된 친환경 결합재; 골재; 혼화제;를 포함하여 배합되되, 물-결합재비 35~55중량%, 단위결합재량 300~500kg/m3, 단위잔골재량 700~900kg/m3, 단위굵은골재량 750~1,000kg/m3로 배합되는 것을 특징으로 한다. 본 발명에 따른 해중 콘크리트 앵커 제조방법은, 고내구성 콘크리트 조성물을 이용하여 해중 콘크리트 앵커를 제조하는 방법으로, 콘크리트 앵커 내부에 보강철근을 매설하고 양중고리를 돌출되게 매설하면서 블록으로 성형하여 제조하되, 보강철근과 양중고리는 MgO계 인산 세라믹 코팅제로 코팅 처리하는 것을 특징으로 한다.


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    Title :

    Manufacturing Method of Undersea Concrete Anchor with High Durability


    Additional title:

    고내구성 해중 콘크리트 앵커 제조방법


    Contributors:
    KIM SE HWAN (author) / PARK DONG CHEOL (author) / YANG WAN HEE (author) / LEE KANG BUM (author) / JUNG SEOK MAN (author) / LEE CHANG GYU (author) / KIM EUN YOUNG (author)

    Publication date :

    2021-06-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    C04B Kalk , LIME / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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