Mechanical Performance and Erosion-resistance of Geopolymer Based on Manganese Slag

摘要

Geopolymers as new kinds of inorganic polymer materials have been extensively investigated and widely applied in many fields for decades because of the simple preparation technology applied and its high-performance. This paper deals with the synthesis of geopolymer utilizing Manganese Slag as main raw material and optimizing its synthesis parameters. The mechanical property, durability of geopolymer was assessed. Research results show the optimized ratio of raw materials and prepare the geopolymer which strengths up to 62.5MPa. Phase analysis confirms that the geopolymer consists mainly of layer structure of Na-Ca-K-Al-Si-OH-3H2O and sheet structure of Na (AlSi2O6) (H2p), which contribute notably to its strength. Furthermore, experiment confirms that the geopolymer is durable even when eroded 90 days. The products can be easily used for construction purposes and have great potential for marine concrete engineering applications.