Ernesto Silitonga, Zulkifli Matondang, Meuthia Fadilla, Jintar Tampubolon, Enny Sinaga, Suhairiani
Various binders such as pozzolanic binder fly ash, Silica Fume already known for its ability on enhancing the physical characteristic on concrete or soil stabilization. Pozzolanic reaction requires several primary factors to provide maximum improvement on physical characteristic. CaO is one of the most important factors that capable to enhance the strength gained. This research is aimed to identify the quantity of the available amount of CaO content in the binders used, and the effect of the available amount on increasing the physical characteristic of the concrete. In this study two type of pozzolanic binders such as Fly Ash are used, to identify the amount of available CaO content, the researcher used Chapelle Test. The engineering test such as unconfined compressive strength is realized to determine the effect of amount of CaO. The results show that binder with higher amount CaO increase the strength development. © Published under licence by IOP Publishing Ltd.
Universitas Negeri Medan, Jl. Willem Iskandar Pasar V Medan Estate, North Sumatera, 20221, Indonesia
