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Title |
Evaluation of Flexural Performance of Eco-Friendly Inorganic Binding Material RC Beams Using Sodium Activator
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DOI |
https://doi.org/10.4334/JKCI.2013.25.3.261 |
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Keywords |
나트륨계 알칼리 활성화제 ; 무기결합재 ; 휨성능 ; 철근콘크리트 보 sodium activator ; inorganic binding material ; flexural performance ; R/C beam |
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Abstract |
In this study, it was developed eco-friendly inorganic binding material concrete using ground granulated blast furnace slag and alkali activator (water glass, sodium hydroxides). Eight reinforced concrete beam using inoganic binding material concrete were constructed and tested under monotonic loading. The major variables were mixture ratio of alkali activator, type of admixture and admixture. Experimental programs were carried out to improve and evaluate the flexural performance of such test specimens, such as the load-displacement, the failure mode, the maximum load carrying capacity, and ductility capacity. All the specimens were modeled in scale-down size. The eco-friendly concrete using inorganic binding material encouraged alkali activation reaction was rapidly hardening speed and showed possibility as a high strength concrete. Also, the RC beams using new materials showed similar behavior and failed similarly with RC beam used portland cement. It is thought that eco-friendly inorganic binding material concrete can be used with construction material and product as a basic research to replace cement concrete. If there is application to structures in PC member as well as production of 2nd concrete product, it could be improved the productivity and reduction of construction duration etc.
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