Research on the Steel Slag Autoclave Powder Ratio Technology and the Stability Detection Method of Steel Slag in Taiwan(1/3)

The stabilizing and product quality testing of steel slag must do the best for re-using steel slag as regeneration material. This project tries to develope the autoclave powder ratio technology, so we can detect the stabilized properties of steel slag more simple, fast and accurate. And we will propose the management strategy and the quality control method for using steel slag as the concrete aggregate.The theme of this project is "Research on the steel slag autoclave powder ratio technology and the stability detection method of steel slag in Taiwan", to be divided into three years to be implemented:In the first year, "Evaluation on the factors influencing degree of autoclave powdering of steel slag and its impact assessment" will carry out. Taking the representative steel slag for study, we hope to explore the influencing factors of autoclave powdering, including the expansion properties of steel slag, the size of steel slag, the autoclave temperature and time, ant the impact degree of the above factors. To obtain the testing conditions of the steel slag autoclave powdering examination.In the following year, "The determination criteria of autoclave powder examination technology of steel slag" will be discussed. The autoclave powder testing of steel slag will be carried out based on the first year’s research results. In addition, the results of previous studies, including free CaO and MgO content analysis method of steel slag and mortar bar thermal expansion measurement technology, will be applied and the relationship of several testing results will be compared. And then we will propose the determination criteria of steel slag autoclave powder ratio test.In the third year, we will conduct "The autoclave powder ratio survey of steel slag in Taiwan and the testing process of examination for steel slag stability". We hope to survey the autovlave powder ratio of steel slag in Taiwan by using the autoclave powder ratio test. So can verify the applicability of the autoclave powder ratio test and review the criteria of testing results. Finally, we will propose the testing process of examination for steel slag stability.