Practical Recycling Application of Power Plant Coal Ash for High Performance Shotcrete Material
This study intends to increase the consumption of coal ash which is an industrial by-product from power plants. The coal ash used to be deposited in the ground and its recycling has been very poor comparing to the produced amount. This study aims to enhance practical application of coal ash as a shotcrete construction material. Derived were optimum mix proportions for high performance shotcrete using coal ash. In order to enhance long term performance, silica fume was also added. Experimental variables included replacement ratio of silica fume and coal ash.Compressive strength and potential hazardous contamination to soil were the primary factors in the performance evaluation. From the test results, when fly ash was replaced up to 10% of the cement,most required specifications were satisfied. Hazardous material content was shown to be well below the specifications. Therefore, when appropriate caution in handling is given in the field, it is strongly anticipated to increase the coal ash recycling as a shotcrete construction material.
Coal ash recycling shotcrete compressive strength durability
Cheolwoo Park Kyung Nam Kim
Dept.of Civil Engineering, Kangwon National University Samcheok 245-711 Korea Dept.of Advanced Materials Engineering, Kangwon National University Samcheok 245-711 Korea
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
251-254
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）