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Journal of the Korea Concrete Institute

J Korea Inst. Struct. Maint. Insp.
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  • Korea Citation Index (KCI)

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Title Evaluation on the Performance of Mortars Made with Calcium Aluminate Cement
Authors 이승태(Seung-Tae Lee)
DOI http://dx.doi.org/10.11112/jksmi.2015.19.6.080
Page pp.80-87
ISSN 2234-6937
Keywords 흡수율 ; CAC ; 염소이온 침투저항성 ; 강도 ; 표면전기저항성 Absorption ; CAC ; Chloride ions penetration resistance ; Strength ; Surface electric resistivity
Abstract In this study, several properties of mortars made with calcium aluminate cement (CAC) such as hydrated products, strength characteristics, absorption, surface electric resistivity and chloride ions penetration resistance were experimentally investigated. The properties of CAC mortars were compared to those of ordinary portland cement (OPC) mortars. From the test results, it was found that the main hydrated products for CAC mortars were of C2AH8 and CAH10, while CH, ettringite and calcite for OPC mortars. The surface electric resistivity and chloride ions penetration resistance of CAC mortars were significantly beneficial compared to those of OPC mortars. However, it should be noted that the absorption properties of CAC mortars were negatively examined. Thus, it needs to have more study for the improvement of surface absorption of CAC matrices. In addition, the combined mixture of CAC and OPC were ineffective to improve some performances of mortars.