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Title |
Development and Field Application of a Restoration Material Suitable for the Floor Repair of Concrete Structures Exposed to Wet Environment
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Authors |
김진성(Jin-Sung Kim) ; 김호준(Ho-Jun Kim) ; 현창진(Chang-Jin Hyun) ; 김윤용(Yun-Yong Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2026.30.1.84 |
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Keywords |
습윤 대응형 혼화제; 기능성 결합재; 단면복구재; 습윤 환경 Wet-response admixtures; Functional binders; Restoration materials; Wet environment |
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Abstract |
This study developed a restoration material by mixing with functional binders, and wet-response admixtures added to overcome wet environments, and investigated the characteristics the performance of developed restoration material. Wet-response admixtures consist of poly acrylamide and methylcellulose and have been used to enhance workability and durability against wet environments. The functional binders contain ground blast furnace slag and surface-modified silica fume, and was introduced to improve the durability of the restoration materials. The restoration material, developed in the present study, was properly placed without dissociation or loss in the wet condition. The pH of the restoration material was measured to be 9.9 and the amount of suspended solids was 46 mg/L, which satisfied the KCI-AD 102 standard. The strength measurement results of the restoration material, mix SEA-5, showed that the compressive strength, the flexural strength and the bond strength were 55.2 MPa, 15.56 MPa and 1.75 MPa, respectively.
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