| Title |
Experimental Study for Quantifying Blast-furnace Slag Powder by Salicylic Acid Ethanol Melting Method |
| Authors |
Choi Hee-Bok ; Kang Kyung-In |
| Keywords |
Salicylic Acid Ethanol Melting Method ; Blast Furnace Slag Cement ; Fresh Blast Furnace Slag Concrete |
| Abstract |
In Japan, the standard for blast furnace slag cement and concrete get readied and, they are utilizing much blast furnace slag for a special concrete used in sea construction etc.. But, in domestic, it is existing state that a standard about this gets not readied yet. Thereby, the blast furnace slag cement and concrete is used to normal concrete as unlawful by the ready-mixed concrete companies. Therefore, this research will bring into the open the use of blast furnace slag cement and concrete. We propose the salicylic acid ethanol melting method as one that can quantify the included blast furnace slag to cement and concrete. Result of a laboratory that applied salicylic acid ethanol melting method, it could receive exactitude as error rate of the 5% more or less. Also, we collected two kinds of fresh blast furnace slag concrete from ready-mixed concrete that is carried in building site, and result that carried out an experiment equally by the method that did in a laboratory experiment with the samples was obtainable high accuracy as error rate of about 5%, too. Experiment result until now, it is considered that the salicylic acid ethanol melting method that is quantitative method of blast furnace slag cement and concrete proposed in this research is practicality very. Although, in this research, it studied to fresh concrete, it is forward research task that grope method to measure quantity of blast furnace slag powder in hardened concrete interior. |